chore: sync frontend manifest

- Introduced new slots for administrative context, CMS categories, detected CMS, product version, co-funding requirements, co-organizers, collection access, collection dates, characteristics, class definitions, Dutch context, example locations, names, notes, and Wikidata IDs.
- Enhanced existing slots such as has_or_had_organizer and offers_or_offered_access to align with RiC-O naming conventions and improve temporal semantics.
- Migrated and restructured descriptions for clarity and consistency across various slots, ensuring alignment with Schema.org and other ontological standards.
- Implemented multivalued and inlined options for several slots to accommodate complex data structures.
- Updated annotations and examples to reflect the latest usage scenarios and best practices in the heritage sector.

frontend/public/schemas/20251121/linkml/manifest.json

@@ -1,5 +1,5 @@
 {
-  "generated": "2026-01-19T12:10:38.542Z",
+  "generated": "2026-01-19T15:15:51.847Z",
   "schemaRoot": "/schemas/20251121/linkml",
   "totalFiles": 2969,
   "categoryCounts": {

schemas/20251121/linkml/manifest.json

@@ -1,5 +1,5 @@
 {
-  "generated": "2026-01-19T12:12:01.538Z",
+  "generated": "2026-01-19T15:15:51.847Z",
   "schemaRoot": "/schemas/20251121/linkml",
   "totalFiles": 2969,
   "categoryCounts": {

schemas/20251121/linkml/modules/classes/Access.yaml

@@ -0,0 +1,254 @@
+# Access class
+# Structured access information for heritage collections and services
+#
+# Created per slot_fixes.yaml revision for collection_access migration
+# Generation date: 2026-01-19
+# Rule compliance: 53 (slot_fixes.yaml), 39 (RiC-O naming)
+
+id: https://nde.nl/ontology/hc/class/Access
+name: Access
+title: Access Class
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+  dcterms: http://purl.org/dc/terms/
+  crm: http://www.cidoc-crm.org/cidoc-crm/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../metadata
+  - ./TimeSpan
+
+classes:
+  Access:
+    class_uri: dcterms:RightsStatement
+    description: |
+      Structured access information for heritage collections, services, or facilities.
+      
+      **Purpose**:
+      Replaces simple string descriptions of access conditions with structured
+      data capturing access types, eligible users, conditions, and restrictions.
+      
+      **Key Properties**:
+      - `access_type`: Type of access (PUBLIC, BY_APPOINTMENT, RESTRICTED, etc.)
+      - `eligible_users`: Who can access (public, students, faculty, researchers)
+      - `access_conditions`: Conditions or requirements for access
+      - `access_restrictions`: Specific restrictions that apply
+      - `temporal_extent`: When this access policy applies
+      
+      **Access Types**:
+      - PUBLIC: Open to general public
+      - BY_APPOINTMENT: Requires advance appointment
+      - ACADEMIC: Restricted to academic community
+      - RESEARCHER: Restricted to credentialed researchers
+      - MEMBER: Requires membership
+      - RESTRICTED: Limited access with specific conditions
+      - CLOSED: Not currently accessible
+      - DIGITAL_ONLY: Available only in digital form
+      
+      **Ontological Alignment**:
+      - **Primary**: `dcterms:RightsStatement` - Dublin Core rights statement
+      - **Close**: `schema:publicAccess` - Schema.org access indicator
+      - **Related**: `crm:E30_Right` - CIDOC-CRM rights
+      
+    exact_mappings:
+      - dcterms:RightsStatement
+    
+    close_mappings:
+      - schema:publicAccess
+    
+    related_mappings:
+      - crm:E30_Right
+    
+    slots:
+      - access_type
+      - eligible_users
+      - access_conditions
+      - access_restrictions
+      - access_description
+      - temporal_extent
+      - is_digital_access
+    
+    slot_usage:
+      access_type:
+        required: true
+        range: AccessTypeEnum
+        description: Type of access offered
+        examples:
+          - value: PUBLIC
+          - value: BY_APPOINTMENT
+          - value: ACADEMIC
+      
+      eligible_users:
+        required: false
+        range: string
+        multivalued: true
+        description: |
+          Categories of users eligible for this access.
+          Examples: "enrolled students", "faculty", "visiting scholars",
+          "credentialed researchers", "general public"
+        examples:
+          - value: "enrolled students"
+          - value: "faculty and staff"
+          - value: "visiting researchers with credentials"
+      
+      access_conditions:
+        required: false
+        range: string
+        multivalued: true
+        description: |
+          Conditions that must be met for access.
+          Examples: "valid university ID", "advance booking required",
+          "handling training completed"
+        examples:
+          - value: "valid university ID required"
+          - value: "24-hour advance booking required"
+      
+      access_restrictions:
+        required: false
+        range: string
+        multivalued: true
+        description: |
+          Specific restrictions on access.
+          Examples: "conservation concerns limit handling",
+          "donor restrictions apply", "high-value items in secure storage"
+        examples:
+          - value: "fragile materials limited to supervised viewing"
+          - value: "donor bequest restricts reproduction"
+      
+      access_description:
+        required: false
+        range: string
+        description: |
+          Free-text description of access policy.
+          For backward compatibility with string-based collection_access.
+        examples:
+          - value: "Open to enrolled students and faculty; public by appointment"
+      
+      temporal_extent:
+        required: false
+        range: TimeSpan
+        inlined: true
+        description: |
+          Time period during which this access policy applies.
+          Useful for temporary restrictions or seasonal access.
+      
+      is_digital_access:
+        required: false
+        range: boolean
+        description: Whether this access is for digital materials
+    
+    annotations:
+      specificity_score: 0.50
+      specificity_rationale: "Moderately specific - applies to collection and service access contexts"
+      custodian_types: '["*"]'
+      custodian_types_rationale: "All institution types offer some form of access"
+    
+    comments:
+      - "Created per slot_fixes.yaml revision for collection_access migration"
+      - "Replaces string-based collection_access with structured access data"
+      - "RULE 53: Part of collection_access → offers_or_offered_access + Access migration"
+    
+    examples:
+      - value:
+          access_type: PUBLIC
+          access_description: "Open to general public during gallery hours"
+          eligible_users:
+            - "general public"
+          access_conditions:
+            - "during posted gallery hours"
+        description: "Public access during gallery hours"
+      
+      - value:
+          access_type: BY_APPOINTMENT
+          eligible_users:
+            - "credentialed researchers"
+            - "graduate students with faculty sponsor"
+          access_conditions:
+            - "48-hour advance booking required"
+            - "handling training required for original materials"
+          access_restrictions:
+            - "fragile materials limited to supervised viewing only"
+        description: "Research access by appointment with conditions"
+      
+      - value:
+          access_type: ACADEMIC
+          access_description: "Open to enrolled students and faculty; public by appointment"
+          eligible_users:
+            - "enrolled students"
+            - "faculty"
+            - "research staff"
+          access_conditions:
+            - "valid university ID"
+          is_digital_access: false
+        description: "Academic community access with public by appointment"
+      
+      - value:
+          access_type: DIGITAL_ONLY
+          access_description: "Collection accessible only through online database"
+          eligible_users:
+            - "anyone with internet access"
+          is_digital_access: true
+        description: "Digital-only access"
+
+slots:
+  access_type:
+    slot_uri: dcterms:accessRights
+    description: Type of access offered
+    range: string
+    required: true
+  
+  eligible_users:
+    slot_uri: schema:eligibleRegion
+    description: Categories of users eligible for access
+    range: string
+    multivalued: true
+  
+  access_conditions:
+    slot_uri: schema:termsOfService
+    description: Conditions for access
+    range: string
+    multivalued: true
+  
+  access_restrictions:
+    slot_uri: schema:usageInfo
+    description: Restrictions on access
+    range: string
+    multivalued: true
+  
+  access_description:
+    slot_uri: schema:description
+    description: Free-text description of access policy
+    range: string
+  
+  is_digital_access:
+    slot_uri: schema:isAccessibleForFree
+    description: Whether this is digital access
+    range: boolean
+
+enums:
+  AccessTypeEnum:
+    description: Types of access to collections or services
+    permissible_values:
+      PUBLIC:
+        description: Open to general public
+      BY_APPOINTMENT:
+        description: Requires advance appointment
+      ACADEMIC:
+        description: Restricted to academic community
+      RESEARCHER:
+        description: Restricted to credentialed researchers
+      MEMBER:
+        description: Requires membership
+      RESTRICTED:
+        description: Limited access with specific conditions
+      CLOSED:
+        description: Not currently accessible
+      DIGITAL_ONLY:
+        description: Available only in digital form
+      MIXED:
+        description: Multiple access types apply

schemas/20251121/linkml/modules/classes/Acquisition.yaml

@@ -0,0 +1,168 @@
+id: https://nde.nl/ontology/hc/class/Acquisition
+name: acquisition_class
+title: Acquisition Class
+# Created per slot_fixes.yaml revision for collection_date migration
+# RULE 53: Structured acquisition event with temporal extent
+# CIDOC-CRM E8 Acquisition pattern
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  crm: http://www.cidoc-crm.org/cidoc-crm/
+  prov: http://www.w3.org/ns/prov#
+  schema: http://schema.org/
+  dwc: http://rs.tdwg.org/dwc/terms/
+  rico: https://www.ica.org/standards/RiC/ontology#
+
+imports:
+  - linkml:types
+  - ../slots/temporal_extent
+  - ./TimeSpan
+  - ../slots/specificity_annotation
+  - ../slots/has_or_had_score
+  - ./SpecificityAnnotation
+  - ./TemplateSpecificityScore
+  - ./TemplateSpecificityType
+  - ./TemplateSpecificityTypes
+
+default_range: string
+
+enums:
+  AcquisitionMethodEnum:
+    description: Methods by which items are acquired for collections.
+    permissible_values:
+      FIELD_COLLECTION:
+        description: Collected in the field (biological, geological specimens)
+        meaning: dwc:Occurrence
+      PURCHASE:
+        description: Acquired through purchase
+        meaning: schema:BuyAction
+      DONATION:
+        description: Given as a gift or donation
+        meaning: schema:DonateAction
+      BEQUEST:
+        description: Received through will or estate
+      TRANSFER:
+        description: Transferred from another institution
+        meaning: crm:E10_Transfer_of_Custody
+      EXCHANGE:
+        description: Exchanged with another institution (specimen exchange)
+      EXCAVATION:
+        description: Recovered through archaeological excavation
+      LOAN:
+        description: On long-term loan (not owned)
+      CONFISCATION:
+        description: Seized or confiscated (legal action)
+      FOUND:
+        description: Found object (no prior owner)
+      COMMISSION:
+        description: Commissioned work (created for the collection)
+      UNKNOWN:
+        description: Acquisition method unknown
+
+classes:
+  Acquisition:
+    class_uri: crm:E8_Acquisition
+    description: >-
+      Represents an acquisition event - how and when an object or specimen was obtained for a collection.
+      
+      CIDOC-CRM E8 Acquisition models the transfer of legal ownership rights.
+      
+      **Key properties**:
+      - `temporal_extent`: When the acquisition occurred (TimeSpan with fuzzy boundaries for historical items)
+      - `acquisition_method`: How the item was acquired (field collection, purchase, donation, etc.)
+      - `acquisition_source`: From whom/where acquired (collector, dealer, previous owner, field location)
+      - `acquisition_agent`: Who performed the acquisition (collector, curator, institution)
+      
+      **Darwin Core alignment**: For biological specimens:
+      - `temporal_extent` replaces `dwc:eventDate` (collection date)
+      - `acquisition_source` can capture `dwc:locality` and `dwc:recordedBy`
+      
+      **Use cases**:
+      - Museum object provenance (purchase from dealer, 1923)
+      - Biological specimen collection (field collection, Amazon basin, 1750s)
+      - Archival transfer (transferred from ministry archives, 2001)
+      - Art donation (donated by artist's estate, 2015)
+    exact_mappings:
+      - crm:E8_Acquisition
+    close_mappings:
+      - prov:Activity
+      - schema:AcquireAction
+    related_mappings:
+      - rico:Event
+      - dwc:Event
+    slots:
+      - temporal_extent
+      - specificity_annotation
+      - has_or_had_score
+    attributes:
+      acquisition_method:
+        range: AcquisitionMethodEnum
+        description: >-
+          Method by which the item was acquired (field collection, purchase, donation, etc.).
+      acquisition_source:
+        range: string
+        description: >-
+          Source from which item was acquired. Can be:
+          - Person name (collector, donor, seller)
+          - Institution name (transferring institution)
+          - Location (field collection locality)
+          - Dealer or auction house
+      acquisition_agent:
+        range: string
+        description: >-
+          Agent who performed the acquisition (collector name, curator, institution).
+          For biological specimens, maps to dwc:recordedBy.
+      acquisition_location:
+        range: string
+        description: >-
+          Location where acquisition occurred (field collection site, auction house location).
+          For biological specimens, can capture field locality.
+      acquisition_reference:
+        range: string
+        description: >-
+          Reference number or identifier for the acquisition (accession number, lot number).
+      acquisition_notes:
+        range: string
+        description: >-
+          Additional notes about the acquisition event.
+      acquisition_date_text:
+        range: string
+        description: >-
+          Original date text as recorded (e.g., "1750s", "pre-1662", "circa 1900").
+          For backward compatibility with string-based collection_date.
+          The structured date should be in temporal_extent.
+    comments:
+      - "Created per slot_fixes.yaml revision for collection_date migration"
+      - "Replaces simple collection_date string with structured acquisition event"
+      - "RULE 53: Part of collection_date → was_acquired_through + Acquisition migration"
+    annotations:
+      specificity_score: 0.70
+      specificity_rationale: "Fairly specific - applies to items with acquisition provenance"
+    examples:
+      - value: |
+          # Biological specimen collected in the field
+          acquisition_method: FIELD_COLLECTION
+          temporal_extent:
+            begin_of_the_begin: "1750-01-01"
+            end_of_the_end: "1759-12-31"
+            notes: "Collected sometime in the 1750s"
+          acquisition_source: "Amazon basin, Brazil"
+          acquisition_agent: "Unknown Dutch collector"
+          acquisition_date_text: "1750s"
+      - value: |
+          # Museum object purchased from dealer
+          acquisition_method: PURCHASE
+          temporal_extent:
+            begin_of_the_begin: "1923-03-15"
+            end_of_the_end: "1923-03-15"
+          acquisition_source: "Sotheby's London"
+          acquisition_reference: "Lot 245, Sale of March 1923"
+      - value: |
+          # Historical specimen with uncertain date
+          acquisition_method: FIELD_COLLECTION
+          temporal_extent:
+            begin_of_the_begin: "1600-01-01"
+            end_of_the_end: "1662-12-31"
+            notes: "Pre-1662 (before Great Fire of London)"
+          acquisition_date_text: "pre-1662"

schemas/20251121/linkml/modules/classes/AudioEventSegment.yaml

@@ -14,7 +14,10 @@ imports:
   - ../slots/end_time
   - ../slots/segment_index
   - ../slots/segment_text
-  - ../slots/confidence
+  # MIGRATED 2026-01-19: confidence → is_or_was_generated_by + GenerationEvent + ConfidenceScore
+  - ../slots/is_or_was_generated_by
+  - ./GenerationEvent
+  - ./ConfidenceScore
   - ../slots/specificity_annotation
   - ../slots/has_or_had_score  # was: template_specificity - migrated per Rule 53 (2026-01-17)
   - ./SpecificityAnnotation
@@ -96,7 +99,8 @@ classes:
       - end_time
       - segment_index
       - segment_text
-      - confidence
+      # MIGRATED 2026-01-19: confidence → is_or_was_generated_by (structured ConfidenceScore)
+      - is_or_was_generated_by
       - specificity_annotation
       - has_or_had_score  # was: template_specificity - migrated per Rule 53 (2026-01-17)
     attributes:
@@ -155,17 +159,19 @@ classes:
             description: Speech transcript text
           - value: "Classical background music"
             description: Music segment description
-      confidence:
-        range: float
+      is_or_was_generated_by:
+        range: GenerationEvent
         required: false
-        minimum_value: 0.0
-        maximum_value: 1.0
-        description: Confidence score (0.0-1.0) for the audio event detection.
+        inlined: true
+        description: >-
+          Generation event containing confidence score for audio event detection.
+          MIGRATED 2026-01-19: Replaces confidence slot with structured pattern.
         examples:
-          - value: 0.95
-            description: High confidence detection
-          - value: 0.72
-            description: Medium confidence detection
+          - value:
+              has_or_had_score:
+                has_or_had_score: 0.95
+                has_or_had_method: "audio_classification"
+            description: High confidence audio event detection
     comments:
       - Audio event segment for speech, music, silence, sound event detection
       - Temporal boundaries with start/end seconds (primary) and ISO 8601 (secondary)

schemas/20251121/linkml/modules/classes/AuxiliaryDigitalPlatform.yaml

@@ -30,7 +30,10 @@ imports:
   - ../slots/has_or_had_archival_status
   - ../slots/has_or_had_identifier
   - ../slots/has_auxiliary_platform_type
-  - ../slots/cms_detected
+  # REMOVED 2026-01-19: ../slots/cms_detected - migrated to is_or_was_based_on + CMS (Rule 53)
+  - ../slots/is_or_was_based_on  # was: cms_detected - migrated per Rule 53 (2026-01-19)
+  - ./CMS
+  - ./CMSType
   - ../slots/fixity_info
   - ../slots/iiif_support
   - ../slots/is_auxiliary_of_platform
@@ -122,7 +125,7 @@ classes:
     - is_or_was_archived_at  # MIGRATED: was archived_at (2026-01-15)
     - has_or_had_identifier
     - has_auxiliary_platform_type
-    - cms_detected
+    - is_or_was_based_on  # was: cms_detected - migrated per Rule 53 (2026-01-19)
     - has_or_had_data_service_endpoint
     - fixity_info
     - funding_source
@@ -299,14 +302,36 @@ classes:
         examples:
         - value: sha256:e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
           description: SHA-256 checksum of archived content
-      cms_detected:
-        range: boolean
+      # DEPRECATED 2026-01-19: cms_detected - migrated to is_or_was_based_on + CMS
+      # Old: cms_detected: true/false (boolean flag)
+      # New: is_or_was_based_on: CMS instance with name, version, detection method
+      is_or_was_based_on:  # was: cms_detected - migrated per Rule 53 (2026-01-19)
+        description: |
+          CMS detected on this platform (replaces boolean cms_detected).
+          MIGRATED from boolean flag to structured CMS reference.
+          If present, a CMS was detected; if absent, no CMS detected.
+          
+          **Migration**:
+          - Old: cms_detected: true
+          - New: is_or_was_based_on: {cms_name: WordPress, cms_version: "6.4"}
+        range: CMS
+        multivalued: true
+        inlined_as_list: true
         required: false
         examples:
-        - value: true
-          description: CMS backend detected
-        - value: false
-          description: No CMS detected (static site)
+        - value:
+            cms_name: WordPress
+            cms_version: "6.4.2"
+            has_or_had_type: CustomCMS
+            detected_at: "2026-01-19T12:00:00Z"
+            detection_method: HTTP_HEADER
+          description: CMS detected via HTTP header
+        - value:
+            cms_name: Omeka S
+            cms_version: "4.0.1"
+            has_or_had_type: MuseumCMS
+            detection_method: URL_PATTERN
+          description: Omeka S detected via URL pattern
       has_or_had_powered_by_cm:
         range: CollectionManagementSystem
         multivalued: true

schemas/20251121/linkml/modules/classes/BiologicalObject.yaml

@@ -28,7 +28,9 @@ imports:
   # cites_appendix REMOVED - migrated to is_or_was_listed_in with CITESAppendix class (Rule 53, 2026-01-19)
   - ../slots/is_or_was_listed_in
   - ./CITESAppendix
-  - ../slots/collection_date
+  # REMOVED 2026-01-19: collection_date - migrated to was_acquired_through + Acquisition (Rule 53)
+  - ../slots/was_acquired_through
+  - ./Acquisition
   - ../slots/collection_locality_text
   - ../slots/collection_location
   - ../slots/collector
@@ -122,7 +124,8 @@ classes:
     - has_or_had_identifier
     # cites_appendix REMOVED - migrated to is_or_was_listed_in with CITESAppendix (Rule 53, 2026-01-19)
     - is_or_was_listed_in
-    - collection_date
+    # collection_date REMOVED - migrated to was_acquired_through + Acquisition (Rule 53, 2026-01-19)
+    - was_acquired_through
     - collection_locality_text
     - collection_location
     - collector
@@ -374,15 +377,36 @@ classes:
         examples:
         - value: Natural History Museum Preparation Lab
         - value: J. van der Berg
-      collection_date:
+      # MIGRATED 2026-01-19: collection_date → was_acquired_through + Acquisition (Rule 53)
+      was_acquired_through:
         required: false
-        range: string
+        range: Acquisition
+        inlined: true
+        inlined_as_list: true
+        description: >-
+          Acquisition event capturing when and how specimen was collected.
+          Replaces simple collection_date with structured acquisition data.
         examples:
-        - value: '2020-06-15'
-        - value: 2020-06/2020-07
-          description: Collected sometime in June-July 2020
-        - value: 1870s
-          description: Historical specimen with approximate date
+        - value: |
+            acquisition_method: FIELD_COLLECTION
+            temporal_extent:
+              begin_of_the_begin: "2020-06-15"
+              end_of_the_end: "2020-06-15"
+            acquisition_date_text: "2020-06-15"
+        - value: |
+            acquisition_method: FIELD_COLLECTION
+            temporal_extent:
+              begin_of_the_begin: "2020-06-01"
+              end_of_the_end: "2020-07-31"
+            acquisition_date_text: "2020-06/2020-07"
+            acquisition_notes: "Collected sometime in June-July 2020"
+        - value: |
+            acquisition_method: FIELD_COLLECTION
+            temporal_extent:
+              begin_of_the_begin: "1870-01-01"
+              end_of_the_end: "1879-12-31"
+            acquisition_date_text: "1870s"
+            acquisition_notes: "Historical specimen with approximate date"
       collection_location:
         required: false
         range: CustodianPlace
@@ -514,7 +538,14 @@ classes:
         - HEAD
         - FOOT
         preservation_method: DRIED_WHOLE
-        collection_date: pre-1662
+        # MIGRATED 2026-01-19: collection_date → was_acquired_through (Rule 53)
+        was_acquired_through:
+        - acquisition_method: FIELD_COLLECTION
+          acquisition_date_text: "pre-1662"
+          temporal_extent:
+            begin_of_the_begin: "1600-01-01"
+            end_of_the_end: "1662-12-31"
+            notes: "Pre-1662 (before Great Fire of London destroyed records)"
         collection_location:
           place_name: Mauritius
           country: MU
@@ -578,7 +609,14 @@ classes:
         - LEAF
         - FLOWER
         preservation_method: DRIED_PRESSED
-        collection_date: 1750s
+        # MIGRATED 2026-01-19: collection_date → was_acquired_through (Rule 53)
+        was_acquired_through:
+        - acquisition_method: FIELD_COLLECTION
+          acquisition_date_text: "1750s"
+          temporal_extent:
+            begin_of_the_begin: "1750-01-01"
+            end_of_the_end: "1759-12-31"
+            notes: "Collected by Linnaeus in the 1750s"
         collector:
         - Carl Linnaeus
         current_keeper: https://nde.nl/ontology/hc/custodian/uk/royal-botanic-gardens-kew

schemas/20251121/linkml/modules/classes/BirthDate.yaml

@@ -21,7 +21,10 @@ imports:
   - ./TemplateSpecificityType
 
   - ./TemplateSpecificityTypes
-  - ../slots/confidence
+  # MIGRATED 2026-01-19: confidence → is_or_was_generated_by + GenerationEvent + ConfidenceScore
+  - ../slots/is_or_was_generated_by
+  - ./GenerationEvent
+  - ./ConfidenceScore
   - ../slots/birth_edtf
   - ../slots/birth_iso_date
   - ../slots/birth_source_text
@@ -94,7 +97,8 @@ classes:
       - birth_source_text
       - is_inferred
       - inference_provenance
-      - confidence
+      # MIGRATED 2026-01-19: confidence → is_or_was_generated_by (structured ConfidenceScore)
+      - is_or_was_generated_by
       - specificity_annotation
       - has_or_had_score  # was: template_specificity - migrated per Rule 53 (2026-01-17)
     slot_usage:
@@ -150,11 +154,25 @@ classes:
           Required when is_inferred is true.
         examples:
           - value: '{"method": "earliest_education_heuristic", "inference_chain": [...]}'
-      confidence:
-        range: BirthDateConfidenceEnum
+      is_or_was_generated_by:
+        range: GenerationEvent
         required: false
+        inlined: true
         description: >-
-          Confidence level in the birth date value.
+          Generation event containing confidence score for birth date determination.
+          MIGRATED 2026-01-19: Replaces confidence slot with structured pattern.
+        examples:
+          - value:
+              has_or_had_score:
+                has_or_had_score: 0.95
+                has_or_had_method: "document_extraction"
+            description: High confidence date extraction
+          - value:
+              has_or_had_score:
+                has_or_had_score: 0.50
+                has_or_had_method: "education_inference"
+                has_or_had_description: "Inferred from education start year"
+            description: Low confidence inferred date
     comments:
       - "Replaces simple birth_date string slot (Rule 53)"
       - "EDTF notation enables uncertain/incomplete date representation"
@@ -168,19 +186,28 @@ classes:
           birth_edtf: "1970-08-15"
           birth_iso_date: "1970-08-15"
           is_inferred: false
-          confidence: HIGH
+          is_or_was_generated_by:
+            has_or_had_score:
+              has_or_had_score: 0.95
+              has_or_had_method: "birth_certificate_extraction"
         description: Full date known with high confidence
       - value:
           birth_edtf: "197X"
           is_inferred: true
           inference_provenance: '{"method": "earliest_education_heuristic", "source_field": "education[0].start_year"}'
-          confidence: LOW
+          is_or_was_generated_by:
+            has_or_had_score:
+              has_or_had_score: 0.40
+              has_or_had_method: "education_inference"
         description: Decade inferred from education start year
       - value:
           birth_edtf: "1823"
           birth_source_text: "born in the year of our Lord 1823"
           is_inferred: false
-          confidence: MEDIUM
+          is_or_was_generated_by:
+            has_or_had_score:
+              has_or_had_score: 0.75
+              has_or_had_method: "document_extraction"
         description: Year extracted from historical document
     annotations:
       specificity_score: 0.45

schemas/20251121/linkml/modules/classes/CMS.yaml

@@ -0,0 +1,142 @@
+id: https://nde.nl/ontology/hc/class/CMS
+name: cms_class
+title: CMS Class
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+  prov: http://www.w3.org/ns/prov#
+  doap: http://usefulinc.com/ns/doap#
+imports:
+  - linkml:types
+  - ../slots/has_or_had_label
+  - ../slots/has_or_had_version
+  - ../slots/has_or_had_type
+  - ./CMSType
+default_prefix: hc
+classes:
+  CMS:
+    class_uri: schema:SoftwareApplication
+    description: |
+      A detected Content Management System (CMS) on a digital platform.
+      
+      **Purpose**: Represents a CMS instance detected through automated discovery
+      or manual identification. Used when a platform is_or_was_based_on a CMS.
+      
+      **Distinction from CollectionManagementSystem**:
+      - **CMS**: Lightweight detection record (what CMS was found)
+      - **CollectionManagementSystem**: Full institutional CMS deployment profile
+        (configuration, collections managed, custodian relationships)
+      
+      **Detection Methods** (from original cms_detected documentation):
+      - HTTP response headers (X-Powered-By, Server)
+      - HTML meta tags (generator)
+      - URL patterns (e.g., /providence/, /omeka/)
+      - JavaScript libraries or framework signatures
+      - Admin panel detection
+      
+      **Use Cases**:
+      1. "What CMS powers this auxiliary platform?" → Check is_or_was_based_on
+      2. Technical survey: Identify platforms by CMS type
+      3. Migration planning: Prioritize platforms by CMS technology
+      
+      **Example**:
+      ```yaml
+      AuxiliaryDigitalPlatform:
+        platform_name: Heritage Blog
+        is_or_was_based_on:
+          - cms_name: WordPress
+            cms_version: "6.4.2"
+            cms_type: CustomCMS
+            detected_at: "2026-01-19T12:00:00Z"
+            detection_method: HTTP_HEADER
+      ```
+      
+      **Migration Note**: Created 2026-01-19 per slot_fixes.yaml (Rule 53).
+      Supports migration from boolean cms_detected to structured CMS reference.
+    exact_mappings:
+      - schema:SoftwareApplication
+    close_mappings:
+      - doap:Project
+    slots:
+      - cms_name
+      - has_or_had_version
+      - has_or_had_type
+      - detected_at
+      - detection_method
+    slot_usage:
+      cms_name:
+        description: Name of the detected CMS (e.g., WordPress, Drupal, Omeka)
+        range: string
+        required: true
+        examples:
+          - value: WordPress
+            description: WordPress CMS
+          - value: Omeka S
+            description: Omeka S digital collections platform
+          - value: CollectiveAccess
+            description: CollectiveAccess museum CMS
+      has_or_had_version:
+        description: Detected version of the CMS
+        range: string
+        required: false
+        examples:
+          - value: "6.4.2"
+            description: WordPress version
+          - value: "4.0.1"
+            description: Omeka S version
+      has_or_had_type:
+        description: CMS type classification (maps to CMSType hierarchy)
+        range: CMSType
+        required: false
+        examples:
+          - value: MuseumCMS
+            description: Museum-focused CMS
+          - value: ArchiveCMS
+            description: Archive-focused CMS
+      detected_at:
+        description: ISO 8601 timestamp when CMS was detected
+        range: datetime
+        required: false
+        examples:
+          - value: "2026-01-19T12:00:00Z"
+            description: Detection timestamp
+      detection_method:
+        description: Method used to detect the CMS
+        range: string
+        required: false
+        examples:
+          - value: HTTP_HEADER
+            description: Detected via X-Powered-By header
+          - value: META_TAG
+            description: Detected via HTML generator meta tag
+          - value: URL_PATTERN
+            description: Detected via URL structure
+          - value: MANUAL
+            description: Manually identified
+    annotations:
+      custodian_types: '["D"]'
+      custodian_types_rationale: Digital platforms (D) are the primary users of CMS detection
+      specificity_score: 0.70
+      specificity_rationale: Specific to digital platform CMS detection context
+
+slots:
+  cms_name:
+    slot_uri: schema:name
+    description: Name of the Content Management System
+    range: string
+    exact_mappings:
+      - schema:name
+      - doap:name
+
+  detected_at:
+    slot_uri: prov:generatedAtTime
+    description: Timestamp when the CMS was detected
+    range: datetime
+    exact_mappings:
+      - prov:generatedAtTime
+
+  detection_method:
+    slot_uri: prov:wasGeneratedBy
+    description: Method used to detect the CMS (HTTP_HEADER, META_TAG, URL_PATTERN, MANUAL)
+    range: string

schemas/20251121/linkml/modules/classes/CMSType.yaml

@@ -0,0 +1,120 @@
+# CMSType class
+# Abstract base class for CMS type taxonomy
+#
+# Generation date: 2026-01-19
+# Rule compliance: 0b (Type/Types pattern), 53 (slot_fixes.yaml), 39 (RiC-O naming)
+#
+# This is the SINGULAR "Type" class - abstract base for the type hierarchy
+# Concrete types are in CMSTypes.yaml (plural)
+
+id: https://nde.nl/ontology/hc/class/cms_type
+name: cms_type_class
+title: CMS Type Class
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  skos: http://www.w3.org/2004/02/skos/core#
+  schema: http://schema.org/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../slots/has_or_had_label
+  - ../slots/has_or_had_description
+  - ../slots/includes_or_included
+
+classes:
+  CMSType:
+    class_uri: skos:Concept
+    abstract: true
+    description: |
+      Abstract base class for Collection Management System type taxonomy.
+      
+      **DESIGN PATTERN** (Rule 0b - Type/Types Naming):
+      
+      This file (`CMSType.yaml`) defines the **singular abstract base class**.
+      Concrete subclasses are defined in `CMSTypes.yaml` (plural).
+      
+      **TYPE HIERARCHY**:
+      
+      ```
+      CMSType (abstract base)
+          │
+          ├── MUSEUM_CMS - Museum collection management (MuseumPlus, TMS, CollectiveAccess)
+          ├── ARCHIVE_CMS - Archival description (ArchivesSpace, MAIS, Calm)
+          ├── LIBRARY_CMS - Library management (Koha, Alma, WorldShare)
+          ├── DAM - Digital asset management (ResourceSpace, DAMsimple)
+          ├── REPOSITORY - Digital repository (DSpace, Fedora, EPrints)
+          ├── MIXED - Multi-domain (Omeka S, CollectiveAccess)
+          └── CUSTOM - Institution-specific/custom-built
+      ```
+      
+      **ONTOLOGICAL ALIGNMENT**:
+      
+      - **Primary** (`class_uri`): `skos:Concept` - SKOS concept scheme
+      - **Related**: `schema:applicationCategory` - Schema.org software categorization
+      
+      **USE CASES**:
+      
+      The CMSType is used as the range for the `has_or_had_type`
+      slot in the CollectionManagementSystem class:
+      
+      ```yaml
+      CollectionManagementSystem:
+        has_or_had_identifier:
+          identifier_scheme: CMS_URI
+          identifier_value: "https://nde.nl/ontology/hc/cms/rijksmuseum-adlib"
+        has_or_had_type: MUSEUM_CMS  # ← CMSType
+      ```
+      
+    exact_mappings:
+      - skos:Concept
+    related_mappings:
+      - schema:applicationCategory
+      
+    slots:
+      - has_or_had_label
+      - has_or_had_description
+      - includes_or_included
+      
+    slot_usage:
+      has_or_had_label:
+        description: |
+          Display label for this CMS type.
+        range: string
+        required: true
+        examples:
+          - value: "MUSEUM_CMS"
+            description: Museum collection management system
+      has_or_had_description:
+        description: |
+          Description of what this CMS type covers.
+        examples:
+          - value:
+              description_text: "Collection management systems designed for museum collections, including object cataloging, provenance tracking, and exhibition management."
+              description_type: definition
+            description: Museum CMS type definition
+      includes_or_included:
+        description: |
+          Subtypes included in this CMS type (for hierarchical types).
+        range: CMSType
+        multivalued: true
+    
+    annotations:
+      type_types_pattern: |
+        This is the SINGULAR "Type" class per Rule 0b.
+        Concrete subclasses in CMSTypes.yaml (plural).
+      custodian_types: '["*"]'
+      custodian_types_rationale: CMS types apply to all heritage custodian contexts.
+      specificity_score: 0.55
+      specificity_rationale: Type taxonomy - moderately specific to software categorization.
+      replaces_slots: "cms_category (the old string-valued slot)"
+      migration_date: "2026-01-19"
+      
+    comments:
+      - "Abstract base class for CMS type hierarchy"
+      - "Follows Rule 0b Type/Types naming pattern"
+      - "Concrete types: MUSEUM_CMS, ARCHIVE_CMS, LIBRARY_CMS, DAM, REPOSITORY, MIXED, CUSTOM"
+      - "See CMSTypes.yaml for subclass definitions"

schemas/20251121/linkml/modules/classes/CMSTypes.yaml

@@ -0,0 +1,258 @@
+# CMSTypes class
+# Concrete subclasses for CMS type taxonomy
+#
+# Generation date: 2026-01-19
+# Rule compliance: 0b (Type/Types pattern), 53 (slot_fixes.yaml), 39 (RiC-O naming)
+#
+# This is the PLURAL "Types" file - contains all concrete subclasses
+# Abstract base is in CMSType.yaml (singular)
+
+id: https://nde.nl/ontology/hc/class/cms_types
+name: cms_types_class
+title: CMS Types Classes
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  skos: http://www.w3.org/2004/02/skos/core#
+  schema: http://schema.org/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ./CMSType
+
+classes:
+  # ========================================================================
+  # MUSEUM_CMS - Museum collection management
+  # ========================================================================
+  MuseumCMS:
+    is_a: CMSType
+    class_uri: hc:MuseumCMS
+    description: |
+      Collection management systems designed for museum collections.
+      
+      **TYPICAL FEATURES**:
+      - Object cataloging and registration
+      - Provenance tracking
+      - Exhibition management
+      - Loan management
+      - Conservation records
+      - SPECTRUM workflow support
+      
+      **EXAMPLES**:
+      - MuseumPlus (Zetcom)
+      - TMS - The Museum System (Gallery Systems)
+      - CollectiveAccess
+      - Adlib (Axiell)
+      - EMu (Axiell)
+      - PastPerfect
+      
+    annotations:
+      cms_type_code: "MUSEUM_CMS"
+      primary_domain: "museums"
+    examples:
+      - value:
+          has_or_had_label: "MUSEUM_CMS"
+          has_or_had_description:
+            description_text: "Collection management systems designed for museum collections, including object cataloging, provenance tracking, and exhibition management."
+        description: Museum CMS type
+
+  # ========================================================================
+  # ARCHIVE_CMS - Archival description systems
+  # ========================================================================
+  ArchiveCMS:
+    is_a: CMSType
+    class_uri: hc:ArchiveCMS
+    description: |
+      Systems for archival description and records management.
+      
+      **TYPICAL FEATURES**:
+      - Hierarchical description (fonds, series, files, items)
+      - ISAD(G) compliance
+      - EAD export
+      - Access restrictions management
+      - Finding aid generation
+      
+      **EXAMPLES**:
+      - ArchivesSpace
+      - MAIS-Flexis (De Ree)
+      - Calm (Axiell)
+      - AtoM (Access to Memory)
+      - Archivist's Toolkit (legacy)
+      
+    annotations:
+      cms_type_code: "ARCHIVE_CMS"
+      primary_domain: "archives"
+    examples:
+      - value:
+          has_or_had_label: "ARCHIVE_CMS"
+          has_or_had_description:
+            description_text: "Archival description systems supporting hierarchical arrangement, ISAD(G) compliance, and EAD export."
+        description: Archive CMS type
+
+  # ========================================================================
+  # LIBRARY_CMS - Library management systems
+  # ========================================================================
+  LibraryCMS:
+    is_a: CMSType
+    class_uri: hc:LibraryCMS
+    description: |
+      Integrated library systems (ILS) and library service platforms.
+      
+      **TYPICAL FEATURES**:
+      - Cataloging (MARC21, RDA)
+      - Circulation management
+      - Acquisitions
+      - Serials management
+      - OPAC (public catalog)
+      - Interlibrary loan
+      
+      **EXAMPLES**:
+      - Alma (Ex Libris)
+      - Koha (open-source)
+      - WorldShare (OCLC)
+      - Folio (open-source)
+      - Sierra (III)
+      - Symphony (SirsiDynix)
+      
+    annotations:
+      cms_type_code: "LIBRARY_CMS"
+      primary_domain: "libraries"
+    examples:
+      - value:
+          has_or_had_label: "LIBRARY_CMS"
+          has_or_had_description:
+            description_text: "Integrated library systems supporting MARC21 cataloging, circulation, acquisitions, and OPAC functionality."
+        description: Library CMS type
+
+  # ========================================================================
+  # DAM - Digital Asset Management
+  # ========================================================================
+  DigitalAssetManagement:
+    is_a: CMSType
+    class_uri: hc:DigitalAssetManagement
+    description: |
+      Digital asset management systems for media files.
+      
+      **TYPICAL FEATURES**:
+      - Image, video, audio management
+      - Metadata extraction
+      - Format conversion
+      - Rights management
+      - Distribution workflows
+      
+      **EXAMPLES**:
+      - ResourceSpace
+      - DAMsimple
+      - Razuna
+      - Pimcore
+      - Bynder
+      - Canto
+      
+    annotations:
+      cms_type_code: "DAM"
+      primary_domain: "digital_assets"
+    examples:
+      - value:
+          has_or_had_label: "DAM"
+          has_or_had_description:
+            description_text: "Digital asset management systems for organizing, storing, and distributing media files including images, video, and audio."
+        description: DAM type
+
+  # ========================================================================
+  # REPOSITORY - Digital repository systems
+  # ========================================================================
+  DigitalRepository:
+    is_a: CMSType
+    class_uri: hc:DigitalRepository
+    description: |
+      Digital repository systems for long-term preservation and access.
+      
+      **TYPICAL FEATURES**:
+      - Long-term preservation
+      - OAI-PMH harvesting
+      - DOI/Handle assignment
+      - Bitstream management
+      - OAIS compliance
+      
+      **EXAMPLES**:
+      - DSpace
+      - Fedora (Flexible Extensible Digital Object Repository Architecture)
+      - EPrints
+      - Islandora (Drupal + Fedora)
+      - Samvera (formerly Hydra)
+      - Preservica
+      
+    annotations:
+      cms_type_code: "REPOSITORY"
+      primary_domain: "digital_preservation"
+    examples:
+      - value:
+          has_or_had_label: "REPOSITORY"
+          has_or_had_description:
+            description_text: "Digital repository systems for long-term preservation, OAI-PMH harvesting, and OAIS-compliant storage."
+        description: Digital repository type
+
+  # ========================================================================
+  # MIXED - Multi-domain systems
+  # ========================================================================
+  MixedCMS:
+    is_a: CMSType
+    class_uri: hc:MixedCMS
+    description: |
+      Multi-domain systems that serve museums, archives, and/or libraries.
+      
+      **TYPICAL FEATURES**:
+      - Flexible data models
+      - Multiple metadata standards
+      - Cross-domain searching
+      - Configurable workflows
+      
+      **EXAMPLES**:
+      - Omeka S (museums, archives, libraries)
+      - CollectiveAccess (museums, archives)
+      - ArchivesSpace + plugins
+      - ResourceSpace with customization
+      
+    annotations:
+      cms_type_code: "MIXED"
+      primary_domain: "multi-domain"
+    examples:
+      - value:
+          has_or_had_label: "MIXED"
+          has_or_had_description:
+            description_text: "Multi-domain collection management systems that can serve museums, archives, and/or libraries with flexible data models."
+        description: Mixed CMS type
+
+  # ========================================================================
+  # CUSTOM - Institution-specific/custom-built
+  # ========================================================================
+  CustomCMS:
+    is_a: CMSType
+    class_uri: hc:CustomCMS
+    description: |
+      Institution-specific or custom-built collection management systems.
+      
+      **TYPICAL FEATURES**:
+      - Tailored to institutional needs
+      - May be legacy systems
+      - Often lack standard API/export
+      - Proprietary data models
+      
+      **EXAMPLES**:
+      - In-house developed systems
+      - Heavily customized commercial systems
+      - Legacy database applications
+      - Spreadsheet-based systems (transitional)
+      
+    annotations:
+      cms_type_code: "CUSTOM"
+      primary_domain: "custom"
+    examples:
+      - value:
+          has_or_had_label: "CUSTOM"
+          has_or_had_description:
+            description_text: "Institution-specific or custom-built collection management systems, often legacy or heavily customized."
+        description: Custom CMS type

schemas/20251121/linkml/modules/classes/CallForApplication.yaml

@@ -32,7 +32,9 @@ imports:
   - ./URL  # for has_or_had_url range
   - ./Identifier  # for has_or_had_identifier range
   # NOTE: has_or_had_status uses CallForApplicationStatusEnum (imported above), not a CallStatus class
-  - ../slots/co_funding_required
+  # REMOVED 2026-01-19: co_funding_required - migrated to requires_or_required + CoFunding (Rule 53)
+  - ../slots/requires_or_required  # was: co_funding_required - migrated per Rule 53 (2026-01-19)
+  - ./CoFunding  # for requires_or_required range (co-funding requirements)
   - ../slots/eligible_applicant
   - ../slots/eligible_country
   - ../slots/funded_project
@@ -115,7 +117,8 @@ classes:
     - has_or_had_label  # was: call_short_name, call_title - migrated per Rule 53 (2026-01-17)
     - has_or_had_status  # was: call_status - migrated per Rule 53 (2026-01-17)
     - has_or_had_url  # was: call_url - migrated per Rule 53 (2026-01-17)
-    - co_funding_required
+    # REMOVED 2026-01-19: co_funding_required - migrated to requires_or_required + CoFunding (Rule 53)
+    - requires_or_required  # was: co_funding_required - migrated per Rule 53 (2026-01-19)
     - contact_email
     - eligible_applicant
     - eligible_country
@@ -317,6 +320,27 @@ classes:
           description: Project funded by this call
         - value: https://nde.nl/ontology/hc/project/europeana/common-culture-2024
           description: Europeana project funded through Horizon Europe
+      requires_or_required:  # was: co_funding_required - migrated per Rule 53 (2026-01-19)
+        range: CoFunding
+        multivalued: false
+        inlined: true
+        description: |
+          Co-funding/match funding requirement for this call.
+          MIGRATED from co_funding_required (boolean) to structured CoFunding class per Rule 53 (2026-01-19).
+          Now captures whether co-funding is required, percentage/amount requirements, and human-readable descriptions.
+        examples:
+        - value:
+            is_or_was_required: true
+            has_or_had_description: "Partnership funding 5-50% depending on grant size"
+          description: NLHF co-funding requirement with percentage range
+        - value:
+            is_or_was_required: true
+            has_or_had_quantity:
+              - quantity_value: 20
+                has_or_had_measurement_unit:
+                  unit_label: "%"
+            has_or_had_description: "Minimum 20% co-funding from applicant organization"
+          description: Co-funding with specific percentage requirement
     comments:
     - CallForApplication links FundingOrganisation to heritage custodian funding opportunities
     - Lifecycle tracked via CallForApplicationStatusEnum (ANNOUNCED through RESULTS_PUBLISHED)
@@ -466,7 +490,9 @@ classes:
         - Natural heritage
         - Intangible heritage
         - Industrial heritage
-        co_funding_required: true
+        requires_or_required:  # was: co_funding_required - migrated per Rule 53 (2026-01-19)
+          is_or_was_required: true
+          has_or_had_description: "Partnership funding 5-50% depending on grant size"
         partnership_required: false
         issuing_organisation: https://nde.nl/ontology/hc/encompassing-body/funding/nlhf
         parent_programme: National Lottery Heritage Fund

schemas/20251121/linkml/modules/classes/Category.yaml

@@ -0,0 +1,135 @@
+id: https://nde.nl/ontology/hc/class/Category
+name: category_class
+title: Category Class
+# Created per slot_fixes.yaml revision for collection_focus migration
+# RULE 53: Structured category class based on SKOS Concept
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  skos: http://www.w3.org/2004/02/skos/core#
+  dcterms: http://purl.org/dc/terms/
+  schema: http://schema.org/
+
+imports:
+  - linkml:types
+  - ../slots/specificity_annotation
+  - ../slots/has_or_had_score
+  - ./SpecificityAnnotation
+  - ./TemplateSpecificityScore
+  - ./TemplateSpecificityType
+  - ./TemplateSpecificityTypes
+
+default_range: string
+
+enums:
+  CategoryTypeEnum:
+    description: Types of categories for classification.
+    permissible_values:
+      SUBJECT:
+        description: Subject or topic category (art, science, history)
+        meaning: skos:Concept
+      THEME:
+        description: Thematic category (Dutch Golden Age, WWII, Islamic art)
+      MATERIAL:
+        description: Material or medium category (paintings, manuscripts, specimens)
+      GEOGRAPHIC:
+        description: Geographic category (European, Asian, African)
+      TEMPORAL:
+        description: Temporal/period category (Medieval, Renaissance, Contemporary)
+      CREATOR:
+        description: Creator-focused category (single artist, school, movement)
+      TYPOLOGY:
+        description: Typological category (portraits, landscapes, genre scenes)
+      FORMAT:
+        description: Format category (books, photographs, digital)
+      GENRE:
+        description: Genre category (fiction, documentary, liturgical)
+
+classes:
+  Category:
+    class_uri: skos:Concept
+    description: >-
+      A category or classification term, based on SKOS Concept model.
+      
+      Categories represent hierarchical or faceted classifications used to
+      describe the focus, subject, or scope of collections and items.
+      
+      **Use cases**:
+      - Collection focus (thematic specialization)
+      - Subject classification (AAT, LCSH, custom vocabularies)
+      - Material classification (medium, format)
+      - Geographic scope (regions, countries)
+      - Temporal scope (periods, eras)
+      
+      **Examples**:
+      - "Dutch Golden Age paintings" (THEME + TEMPORAL + MATERIAL)
+      - "Lepidoptera" (SUBJECT, scientific classification)
+      - "First edition literature" (FORMAT + TYPOLOGY)
+    exact_mappings:
+      - skos:Concept
+    close_mappings:
+      - schema:DefinedTerm
+      - dcterms:subject
+    slots:
+      - specificity_annotation
+      - has_or_had_score
+    attributes:
+      category_name:
+        range: string
+        required: true
+        description: Name of the category.
+        slot_uri: skos:prefLabel
+      category_type:
+        range: CategoryTypeEnum
+        description: Type of category (subject, theme, material, geographic, etc.).
+      category_description:
+        range: string
+        description: Description of what this category encompasses.
+        slot_uri: skos:definition
+      broader_category:
+        range: string
+        description: >-
+          Broader (parent) category in hierarchy.
+          E.g., "Paintings" is broader than "Oil paintings"
+        slot_uri: skos:broader
+      narrower_category:
+        range: string
+        multivalued: true
+        description: >-
+          Narrower (child) categories.
+          E.g., "Oil paintings", "Watercolors" are narrower than "Paintings"
+        slot_uri: skos:narrower
+      vocabulary_source:
+        range: string
+        description: >-
+          Source vocabulary or thesaurus (AAT, LCSH, custom).
+      vocabulary_id:
+        range: string
+        description: >-
+          Identifier in the source vocabulary (e.g., AAT term ID).
+    comments:
+      - "Created per slot_fixes.yaml revision for collection_focus migration"
+      - "SKOS-based category model for collection classification"
+      - "RULE 53: Part of collection_focus → has_or_had_category + Category migration"
+    annotations:
+      specificity_score: 0.45
+      specificity_rationale: "Broadly useful - applies to many collection contexts"
+    examples:
+      - value: |
+          category_name: "Dutch Golden Age paintings"
+          category_type: THEME
+          category_description: "Paintings from the Dutch Golden Age (17th century)"
+          broader_category: "European paintings"
+          vocabulary_source: "AAT"
+      - value: |
+          category_name: "Lepidoptera"
+          category_type: SUBJECT
+          category_description: "Butterflies and moths"
+          broader_category: "Insects"
+          vocabulary_source: "ITIS"
+      - value: |
+          category_name: "First edition literature"
+          category_type: FORMAT
+          category_description: "First printings of literary works"
+          broader_category: "Rare books"

schemas/20251121/linkml/modules/classes/ChAnnotatorAnnotationMetadata.yaml

@@ -1,6 +1,7 @@
 # ChAnnotatorAnnotationMetadata - Metadata about the annotation
 # Extracted from custodian_source.yaml per Rule 38 (modular schema files)
 # Extraction date: 2026-01-08
+# MIGRATED 2026-01-19: confidence_score → is_or_was_generated_by + GenerationEvent + ConfidenceScore
 
 id: https://nde.nl/ontology/hc/classes/ChAnnotatorAnnotationMetadata
 name: ChAnnotatorAnnotationMetadata
@@ -17,7 +18,10 @@ prefixes:
 
 imports:
   - linkml:types
-  - ../slots/confidence_score
+  # MIGRATED 2026-01-19: confidence_score → is_or_was_generated_by + GenerationEvent + ConfidenceScore
+  - ../slots/is_or_was_generated_by
+  - ./GenerationEvent
+  - ./ConfidenceScore
 
 
 default_range: string
@@ -42,7 +46,22 @@ classes:
         - prov:Entity
         - schema:Rating
       slots:
-        - confidence_score
+        # MIGRATED 2026-01-19: confidence_score → is_or_was_generated_by
+        - is_or_was_generated_by
+      slot_usage:
+        is_or_was_generated_by:
+          range: GenerationEvent
+          required: false
+          inlined: true
+          description: >-
+            Generation event containing confidence score for annotation.
+            MIGRATED 2026-01-19: Replaces confidence_score slot with structured pattern.
+          examples:
+            - value:
+                has_or_had_score:
+                  has_or_had_score: 0.92
+                  has_or_had_method: "annotation_validation"
+              description: High confidence annotation
       attributes:
         verified:
           range: boolean
@@ -53,3 +72,6 @@ classes:
         verified_by:
           range: string
           description: Who verified the annotation
+      
+      comments:
+        - "MIGRATED 2026-01-19: confidence_score → is_or_was_generated_by + ConfidenceScore"

schemas/20251121/linkml/modules/classes/Classroom.yaml

@@ -102,17 +102,7 @@ classes:
     annotations:
       specificity_score: "0.55"
       specificity_rationale: "Moderately specific - classrooms common in education centers."
-      template_specificity:
-        archive_search: 0.30
-        museum_search: 0.50
-        library_search: 0.45
-        collection_discovery: 0.20
-        person_research: 0.15
-        location_browse: 0.60
-        identifier_lookup: 0.10
-        organizational_change: 0.25
-        digital_platform: 0.15
-        general_heritage: 0.55
+      template_specificity: '{"archive_search": 0.30, "museum_search": 0.50, "library_search": 0.45, "collection_discovery": 0.20, "person_research": 0.15, "location_browse": 0.60, "identifier_lookup": 0.10, "organizational_change": 0.25, "digital_platform": 0.15, "general_heritage": 0.55}'
     
     examples:
       - value:

schemas/20251121/linkml/modules/classes/ClimateControl.yaml

@@ -0,0 +1,161 @@
+# ClimateControl class
+# Climate control system or approach for heritage facilities
+#
+# Generation date: 2026-01-19
+# Rule compliance: 53 (slot_fixes.yaml), 39 (RiC-O naming), 0b (Type/Types pattern)
+#
+# Created for climate_control_type migration
+
+id: https://nde.nl/ontology/hc/class/climate_control
+name: climate_control_class
+title: Climate Control Class
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+  crm: http://www.cidoc-crm.org/cidoc-crm/
+  aat: http://vocab.getty.edu/aat/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../slots/has_or_had_label
+  - ../slots/has_or_had_description
+  - ../slots/has_or_had_type
+  - ./ClimateControlType
+
+classes:
+  ClimateControl:
+    class_uri: aat:300264752
+    description: |
+      Climate control system or approach for managing environmental conditions.
+      
+      **DEFINITION**:
+      
+      A ClimateControl represents the physical system, equipment, or approach
+      used to manage temperature, humidity, air quality, and other environmental
+      factors in heritage facilities.
+      
+      **GETTY AAT ALIGNMENT**:
+      
+      `aat:300264752` (climate control systems) - "Systems for controlling
+      environmental conditions such as temperature and humidity."
+      
+      **USE CASES**:
+      
+      1. **Full HVAC System**:
+         ```yaml
+         ClimateControl:
+           has_or_had_label: "Main Gallery HVAC"
+           has_or_had_type: HVAC
+           has_or_had_description:
+             description_text: "Central HVAC with 24/7 monitoring, backup power"
+         ```
+      
+      2. **Basic Heating**:
+         ```yaml
+         ClimateControl:
+           has_or_had_label: "Warehouse Heating"
+           has_or_had_type: HEATED
+         ```
+      
+      3. **Dehumidification Only**:
+         ```yaml
+         ClimateControl:
+           has_or_had_label: "Photo Archive Dehumidifier"
+           has_or_had_type: DEHUMIDIFIED
+         ```
+      
+      **RELATIONSHIP TO ClimateControlType**:
+      
+      ```
+      ClimateControl
+          │
+          └── has_or_had_type ──► ClimateControlType
+                                      │
+                                      └── (HEATED, HVAC, DEHUMIDIFIED, NONE, etc.)
+      ```
+      
+    exact_mappings:
+      - aat:300264752
+    close_mappings:
+      - schema:Product
+    related_mappings:
+      - crm:E22_Human-Made_Object
+      
+    slots:
+      - has_or_had_label
+      - has_or_had_description
+      - has_or_had_type
+      
+    slot_usage:
+      has_or_had_label:
+        description: |
+          Name or identifier for this climate control system.
+        range: string
+        required: false
+        examples:
+          - value: "Main Stack HVAC System"
+            description: Named HVAC system
+          - value: "Depot B Climate Control"
+            description: Named by location
+      has_or_had_description:
+        description: |
+          Description of the climate control system capabilities.
+        examples:
+          - value:
+              description_text: "Precision HVAC with temperature control ±1°C, humidity control ±3% RH. Redundant systems with automatic failover."
+              description_type: technical
+            description: Detailed technical description
+      has_or_had_type:
+        range: ClimateControlType
+        required: true
+        description: |
+          Type of climate control (HEATED, HVAC, DEHUMIDIFIED, NONE, etc.).
+        examples:
+          - value: HVAC
+            description: Full heating/cooling system
+          - value: HEATED
+            description: Heating only
+          - value: DEHUMIDIFIED
+            description: Humidity control only
+          - value: NONE
+            description: No climate control
+    
+    annotations:
+      custodian_types: '["*"]'
+      custodian_types_rationale: Climate control applies to all heritage custodian types with physical facilities.
+      custodian_types_primary: A
+      specificity_score: 0.55
+      specificity_rationale: Moderately specific - common across facility management contexts.
+      replaces_slots: "climate_control_type (partial - represents the system, type is separate)"
+      
+    comments:
+      - "Represents climate control systems/equipment"
+      - "Maps to Getty AAT 300264752"
+      - "Type classification via has_or_had_type → ClimateControlType"
+      
+    examples:
+      - value:
+          has_or_had_label: "Rijksmuseum Collection Storage HVAC"
+          has_or_had_type: HVAC
+          has_or_had_description:
+            description_text: "Precision climate control with T=20±1°C, RH=50±3%. Redundant compressors, backup power, 24/7 monitoring."
+            description_type: technical
+        description: Museum collection storage climate system
+      - value:
+          has_or_had_label: "Logistics Warehouse Heating"
+          has_or_had_type: HEATED
+          has_or_had_description:
+            description_text: "Basic gas heating to prevent freezing. No humidity control."
+            description_type: technical
+        description: Basic warehouse heating
+      - value:
+          has_or_had_label: "Photo Archive Dehumidifier"
+          has_or_had_type: DEHUMIDIFIED
+          has_or_had_description:
+            description_text: "Portable dehumidifier maintaining RH below 50%."
+            description_type: technical
+        description: Dehumidification for photos

schemas/20251121/linkml/modules/classes/ClimateControlPolicy.yaml

@@ -0,0 +1,154 @@
+# ClimateControlPolicy class
+# Policy governing climate control systems and conditions
+#
+# Generation date: 2026-01-19
+# Rule compliance: 53 (slot_fixes.yaml), 39 (RiC-O naming), 0b (Type/Types pattern)
+#
+# Created for climate_control_type migration
+
+id: https://nde.nl/ontology/hc/class/climate_control_policy
+name: climate_control_policy_class
+title: Climate Control Policy Class
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  odrl: http://www.w3.org/ns/odrl/2/
+  dcterms: http://purl.org/dc/terms/
+  schema: http://schema.org/
+  prov: http://www.w3.org/ns/prov#
+  crm: http://www.cidoc-crm.org/cidoc-crm/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../slots/has_or_had_label
+  - ../slots/has_or_had_description
+  - ../slots/regulates_or_regulated
+  - ./ClimateControl
+
+classes:
+  ClimateControlPolicy:
+    class_uri: odrl:Policy
+    description: |
+      Policy governing climate control systems and environmental conditions.
+      
+      **DEFINITION**:
+      
+      A ClimateControlPolicy defines the rules, standards, and requirements
+      for environmental control within heritage facilities. This includes
+      temperature ranges, humidity levels, air quality standards, and
+      monitoring requirements.
+      
+      **ONTOLOGICAL ALIGNMENT**:
+      
+      - **Primary** (`class_uri`): `odrl:Policy` - ODRL policy construct
+      - **Related**: `crm:E29_Design_or_Procedure` - CIDOC-CRM procedures
+      
+      **USE CASES**:
+      
+      1. **Preservation Environment Policy**:
+         ```yaml
+         ClimateControlPolicy:
+           has_or_had_label: "Archives Preservation Environment Standard"
+           has_or_had_description:
+             description_text: "Temperature 18-22°C, RH 45-55%, 24/7 monitoring"
+           regulates_or_regulated:
+             - ClimateControl: HVAC system for stack areas
+         ```
+      
+      2. **Warehouse Climate Requirements**:
+         ```yaml
+         ClimateControlPolicy:
+           has_or_had_label: "Logistics Warehouse Climate Requirements"
+           regulates_or_regulated:
+             - ClimateControl: Basic heating system
+         ```
+      
+      **RELATIONSHIP TO ClimateControl**:
+      
+      ```
+      ClimateControlPolicy
+          │
+          ├── regulates_or_regulated ──► ClimateControl
+          │                                  │
+          │                                  └── has_or_had_type ──► ClimateControlType
+          │
+          └── (may regulate multiple systems)
+      ```
+      
+    exact_mappings:
+      - odrl:Policy
+    close_mappings:
+      - crm:E29_Design_or_Procedure
+    related_mappings:
+      - schema:Action
+      
+    slots:
+      - has_or_had_label
+      - has_or_had_description
+      - regulates_or_regulated
+      
+    slot_usage:
+      has_or_had_label:
+        description: |
+          Name of this climate control policy.
+        range: string
+        required: true
+        examples:
+          - value: "Archives Preservation Environment Standard"
+            description: Policy for archival storage
+      has_or_had_description:
+        description: |
+          Detailed description of policy requirements.
+        examples:
+          - value:
+              description_text: "Temperature must be maintained between 18-22°C with relative humidity 45-55%. Continuous monitoring required."
+              description_type: policy
+            description: Preservation environment requirements
+      regulates_or_regulated:
+        range: ClimateControl
+        description: |
+          Climate control system(s) governed by this policy.
+        inlined: true
+        inlined_as_list: true
+        examples:
+          - value:
+              has_or_had_label: "Main Stack HVAC"
+              has_or_had_type: HVAC
+            description: HVAC system regulated by policy
+    
+    annotations:
+      custodian_types: '["A", "L", "M", "R"]'
+      custodian_types_rationale: Climate policies primarily for archives, libraries, museums, and research centers with preservation needs.
+      custodian_types_primary: A
+      specificity_score: 0.60
+      specificity_rationale: Moderately specific - applies to facilities with climate-controlled storage.
+      
+    comments:
+      - "Policy governing climate control systems"
+      - "Maps to ODRL Policy construct"
+      - "Links to ClimateControl via regulates_or_regulated slot"
+      
+    examples:
+      - value:
+          has_or_had_label: "Rijksmuseum Collection Storage Climate Policy"
+          has_or_had_description:
+            description_text: "All collection storage areas must maintain temperature 20±2°C, RH 50±5%. HVAC failure triggers immediate response protocol."
+            description_type: policy
+          regulates_or_regulated:
+            - has_or_had_label: "Depot A HVAC System"
+              has_or_had_type: HVAC
+            - has_or_had_label: "Depot B HVAC System"
+              has_or_had_type: HVAC
+        description: Museum collection storage climate policy
+      - value:
+          has_or_had_label: "Warehouse Basic Climate Requirements"
+          has_or_had_description:
+            description_text: "Non-collection warehouse areas must maintain temperature above freezing. Heating required October-April."
+            description_type: policy
+          regulates_or_regulated:
+            - has_or_had_label: "Logistics Warehouse Heating"
+              has_or_had_type: HEATED
+        description: Basic warehouse climate requirements

schemas/20251121/linkml/modules/classes/ClimateControlType.yaml

@@ -0,0 +1,117 @@
+# ClimateControlType class
+# Abstract base class for climate control type taxonomy
+#
+# Generation date: 2026-01-19
+# Rule compliance: 0b (Type/Types pattern), 53 (slot_fixes.yaml), 39 (RiC-O naming)
+#
+# This is the SINGULAR "Type" class - abstract base for the type hierarchy
+# Concrete types are in ClimateControlTypes.yaml (plural)
+
+id: https://nde.nl/ontology/hc/class/climate_control_type
+name: climate_control_type_class
+title: Climate Control Type Class
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  skos: http://www.w3.org/2004/02/skos/core#
+  aat: http://vocab.getty.edu/aat/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../slots/has_or_had_label
+  - ../slots/has_or_had_description
+  - ../slots/includes_or_included
+
+classes:
+  ClimateControlType:
+    class_uri: skos:Concept
+    abstract: true
+    description: |
+      Abstract base class for climate control type taxonomy.
+      
+      **DESIGN PATTERN** (Rule 0b - Type/Types Naming):
+      
+      This file (`ClimateControlType.yaml`) defines the **singular abstract base class**.
+      Concrete subclasses are defined in `ClimateControlTypes.yaml` (plural).
+      
+      **TYPE HIERARCHY**:
+      
+      ```
+      ClimateControlType (abstract base)
+          │
+          ├── HEATED - Heating only (prevent freezing)
+          ├── HVAC - Full heating, ventilation, air conditioning
+          ├── DEHUMIDIFIED - Humidity control only
+          ├── COOLED - Cooling only (no heating)
+          ├── PASSIVE - Passive environmental control (building design)
+          └── NONE - No climate control
+      ```
+      
+      **ONTOLOGICAL ALIGNMENT**:
+      
+      - **Primary** (`class_uri`): `skos:Concept` - SKOS concept scheme
+      - **Related**: `aat:300264752` - Getty AAT climate control systems
+      
+      **USE CASES**:
+      
+      The ClimateControlType is used as the range for the `has_or_had_type`
+      slot in the ClimateControl class:
+      
+      ```yaml
+      ClimateControl:
+        has_or_had_label: "Main Stack HVAC"
+        has_or_had_type: HVAC  # ← ClimateControlType
+      ```
+      
+    exact_mappings:
+      - skos:Concept
+    related_mappings:
+      - aat:300264752
+      
+    slots:
+      - has_or_had_label
+      - has_or_had_description
+      - includes_or_included
+      
+    slot_usage:
+      has_or_had_label:
+        description: |
+          Display label for this climate control type.
+        range: string
+        required: true
+        examples:
+          - value: "HVAC"
+            description: Heating, ventilation, air conditioning
+      has_or_had_description:
+        description: |
+          Description of what this climate control type provides.
+        examples:
+          - value:
+              description_text: "Full heating, ventilation, and air conditioning with temperature and humidity control."
+              description_type: definition
+            description: HVAC type definition
+      includes_or_included:
+        description: |
+          Subtypes included in this climate control type (for hierarchical types).
+        range: ClimateControlType
+        multivalued: true
+    
+    annotations:
+      type_types_pattern: |
+        This is the SINGULAR "Type" class per Rule 0b.
+        Concrete subclasses in ClimateControlTypes.yaml (plural).
+      custodian_types: '["*"]'
+      custodian_types_rationale: Climate control types apply to all heritage facility contexts.
+      specificity_score: 0.50
+      specificity_rationale: Type taxonomy - moderately specific to facility management.
+      replaces_slots: "climate_control_type (the old string-valued slot)"
+      migration_date: "2026-01-19"
+      
+    comments:
+      - "Abstract base class for climate control type hierarchy"
+      - "Follows Rule 0b Type/Types naming pattern"
+      - "Concrete types: HEATED, HVAC, DEHUMIDIFIED, COOLED, PASSIVE, NONE"
+      - "See ClimateControlTypes.yaml for subclass definitions"

schemas/20251121/linkml/modules/classes/ClimateControlTypes.yaml

@@ -0,0 +1,211 @@
+# ClimateControlTypes class
+# Concrete subclasses for climate control type taxonomy
+#
+# Generation date: 2026-01-19
+# Rule compliance: 0b (Type/Types pattern), 53 (slot_fixes.yaml), 39 (RiC-O naming)
+#
+# This is the PLURAL "Types" file - contains all concrete subclasses
+# Abstract base is in ClimateControlType.yaml (singular)
+
+id: https://nde.nl/ontology/hc/class/climate_control_types
+name: climate_control_types_class
+title: Climate Control Types Classes
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  skos: http://www.w3.org/2004/02/skos/core#
+  aat: http://vocab.getty.edu/aat/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ./ClimateControlType
+
+classes:
+  # ========================================================================
+  # HEATED - Heating only (prevent freezing)
+  # ========================================================================
+  HeatedClimateControl:
+    is_a: ClimateControlType
+    class_uri: hc:HeatedClimateControl
+    description: |
+      Heating-only climate control - prevents freezing, no cooling or humidity control.
+      
+      **TYPICAL USE CASES**:
+      - Warehouses in cold climates
+      - Unheated outbuildings needing freeze protection
+      - Basic storage areas without preservation requirements
+      
+      **CAPABILITIES**:
+      - Temperature: Above freezing (typically 10-15°C minimum)
+      - Humidity: Uncontrolled
+      - Air quality: Uncontrolled
+      
+    annotations:
+      climate_control_code: "HEATED"
+      preservation_suitability: "Low - suitable for non-sensitive materials only"
+    examples:
+      - value:
+          has_or_had_label: "HEATED"
+          has_or_had_description:
+            description_text: "Heating only to prevent freezing. No humidity or cooling control."
+        description: Basic heating type
+
+  # ========================================================================
+  # HVAC - Full heating, ventilation, air conditioning
+  # ========================================================================
+  HVACClimateControl:
+    is_a: ClimateControlType
+    class_uri: hc:HVACClimateControl
+    description: |
+      Full HVAC - heating, ventilation, and air conditioning with temperature
+      and typically humidity control.
+      
+      **TYPICAL USE CASES**:
+      - Museum collection storage
+      - Archive repositories
+      - Special collections libraries
+      - Conservation labs
+      
+      **CAPABILITIES**:
+      - Temperature: Precise control (typically ±1-2°C)
+      - Humidity: Controlled (typically ±3-5% RH)
+      - Air quality: Filtered, controlled air changes
+      
+    annotations:
+      climate_control_code: "HVAC"
+      preservation_suitability: "High - suitable for sensitive collections"
+    examples:
+      - value:
+          has_or_had_label: "HVAC"
+          has_or_had_description:
+            description_text: "Full heating, ventilation, and air conditioning with temperature and humidity control."
+        description: Full HVAC type
+
+  # ========================================================================
+  # DEHUMIDIFIED - Humidity control only
+  # ========================================================================
+  DehumidifiedClimateControl:
+    is_a: ClimateControlType
+    class_uri: hc:DehumidifiedClimateControl
+    description: |
+      Dehumidification-only climate control - humidity control without
+      temperature control.
+      
+      **TYPICAL USE CASES**:
+      - Photo archives in temperate climates
+      - Basement storage areas
+      - Areas with mold/mildew concerns
+      
+      **CAPABILITIES**:
+      - Temperature: Uncontrolled (ambient)
+      - Humidity: Controlled (typically below 50-60% RH)
+      - Air quality: May have basic filtration
+      
+    annotations:
+      climate_control_code: "DEHUMIDIFIED"
+      preservation_suitability: "Medium - protects against humidity damage"
+    examples:
+      - value:
+          has_or_had_label: "DEHUMIDIFIED"
+          has_or_had_description:
+            description_text: "Humidity control only - maintains RH below target threshold."
+        description: Dehumidification type
+
+  # ========================================================================
+  # COOLED - Cooling only (no heating)
+  # ========================================================================
+  CooledClimateControl:
+    is_a: ClimateControlType
+    class_uri: hc:CooledClimateControl
+    description: |
+      Cooling-only climate control - air conditioning without heating.
+      
+      **TYPICAL USE CASES**:
+      - Tropical/warm climate facilities
+      - Server rooms with collections databases
+      - Cold storage for photographic materials
+      
+      **CAPABILITIES**:
+      - Temperature: Cooling only (may have precise control)
+      - Humidity: May be controlled as byproduct of cooling
+      - Air quality: Typically filtered
+      
+    annotations:
+      climate_control_code: "COOLED"
+      preservation_suitability: "Medium-High - depends on precision"
+    examples:
+      - value:
+          has_or_had_label: "COOLED"
+          has_or_had_description:
+            description_text: "Cooling only - maintains temperature below ambient in warm climates."
+        description: Cooling-only type
+
+  # ========================================================================
+  # PASSIVE - Passive environmental control (building design)
+  # ========================================================================
+  PassiveClimateControl:
+    is_a: ClimateControlType
+    class_uri: hc:PassiveClimateControl
+    description: |
+      Passive climate control - environmental management through building
+      design rather than mechanical systems.
+      
+      **TYPICAL USE CASES**:
+      - Historic buildings with thick walls
+      - Underground/cave storage
+      - Purpose-built passive storage facilities
+      
+      **CAPABILITIES**:
+      - Temperature: Stable but not precisely controlled
+      - Humidity: May be naturally stable
+      - Air quality: Natural ventilation
+      
+      **EXAMPLES**:
+      - Swiss National Library underground repository
+      - Cave archives
+      - Historic stone buildings with thermal mass
+      
+    annotations:
+      climate_control_code: "PASSIVE"
+      preservation_suitability: "Variable - depends on building characteristics"
+    examples:
+      - value:
+          has_or_had_label: "PASSIVE"
+          has_or_had_description:
+            description_text: "Passive environmental control through building design, thermal mass, and natural ventilation."
+        description: Passive control type
+
+  # ========================================================================
+  # NONE - No climate control
+  # ========================================================================
+  NoClimateControl:
+    is_a: ClimateControlType
+    class_uri: hc:NoClimateControl
+    description: |
+      No climate control - ambient conditions only.
+      
+      **TYPICAL USE CASES**:
+      - Outdoor monuments
+      - Unimproved storage spaces
+      - Temporary exhibition spaces
+      
+      **CAPABILITIES**:
+      - Temperature: Ambient (uncontrolled)
+      - Humidity: Ambient (uncontrolled)
+      - Air quality: Ambient (uncontrolled)
+      
+      **WARNING**:
+      Not suitable for sensitive heritage materials.
+      
+    annotations:
+      climate_control_code: "NONE"
+      preservation_suitability: "None - unsuitable for sensitive materials"
+    examples:
+      - value:
+          has_or_had_label: "NONE"
+          has_or_had_description:
+            description_text: "No climate control - ambient environmental conditions only."
+        description: No climate control type

schemas/20251121/linkml/modules/classes/CoFunding.yaml

@@ -0,0 +1,137 @@
+# CoFunding - Co-funding/match funding requirement
+# Created 2026-01-19 per slot_fixes.yaml revision for co_funding_required
+# Rule 53: Generic slot + structured class pattern
+id: https://nde.nl/ontology/hc/class/CoFunding
+name: CoFunding
+title: CoFunding Class
+version: 1.0.0
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+  dcterms: http://purl.org/dc/terms/
+imports:
+  - linkml:types
+  - ../slots/has_or_had_description
+  - ../slots/is_or_was_required
+  - ../slots/has_or_had_quantity
+  - ./Quantity
+  - ./MeasureUnit
+  - ../enums/MeasureUnitEnum
+default_prefix: hc
+
+classes:
+  CoFunding:
+    class_uri: schema:MonetaryAmount
+    description: |
+      Co-funding or match funding requirement for a funding call or grant.
+      
+      Co-funding represents the financial contribution that an applicant must
+      provide alongside the grant funding. This may be expressed as:
+      - A percentage of total project cost (e.g., 30% co-funding required)
+      - A minimum absolute amount (e.g., €50,000 minimum co-funding)
+      - In-kind contributions (staff time, facilities, equipment)
+      
+      **ONTOLOGY ALIGNMENT**:
+      - schema:MonetaryAmount - For monetary co-funding amounts
+      - schema:percentageValue - For percentage-based requirements
+      
+      **MIGRATION NOTE**:
+      Replaces simple boolean `co_funding_required` slot with structured class
+      that captures co-funding amount, percentage, and type information.
+      
+      **USAGE**:
+      - CallForApplication requires_or_required CoFunding
+      - Grant has_or_had_cofunding CoFunding
+      
+      **EXAMPLES**:
+      - Horizon Europe: 0% co-funding for academic partners (100% funding rate)
+      - National Lottery Heritage Fund: 5-50% partnership funding required
+      - Creative Europe: 40% co-funding required (60% EU contribution)
+    exact_mappings:
+      - schema:MonetaryAmount
+    close_mappings:
+      - schema:percentageValue
+    related_mappings:
+      - schema:Grant
+      - schema:FundingScheme
+    slots:
+      - is_or_was_required
+      - has_or_had_description
+      - has_or_had_quantity
+    slot_usage:
+      is_or_was_required:
+        required: true
+        range: boolean
+        description: |
+          Whether co-funding is required for this funding opportunity.
+          True = applicants must provide matching funds.
+          False = full funding provided (no co-funding required).
+        examples:
+          - value: true
+            description: Co-funding required (e.g., 30% match)
+          - value: false
+            description: Full funding provided (100% grant rate)
+      has_or_had_description:
+        range: string
+        description: |
+          Human-readable description of co-funding requirements.
+          May include eligibility notes, in-kind contribution rules, etc.
+        examples:
+          - value: "30% co-funding required; in-kind contributions accepted up to 10%"
+            description: Mixed co-funding with in-kind allowance
+          - value: "Partnership funding required ranging from 5% to 50% depending on grant size"
+            description: Sliding scale co-funding
+      has_or_had_quantity:
+        range: Quantity
+        multivalued: true
+        inlined: true
+        inlined_as_list: true
+        description: |
+          Quantified co-funding requirements expressed as:
+          - Percentage (e.g., 30% of total project cost)
+          - Minimum amount (e.g., €50,000)
+          - Maximum amount (e.g., up to €1,000,000)
+        examples:
+          - value:
+              quantity_value: 30
+              has_or_had_measurement_unit:
+                unit_label: "%"
+            description: 30% co-funding percentage
+          - value:
+              quantity_value: 50000
+              has_or_had_measurement_unit:
+                unit_label: EUR
+            description: Minimum €50,000 co-funding
+    comments:
+      - Replaces simple co_funding_required boolean with structured class
+      - Captures both percentage and absolute co-funding amounts
+      - In-kind contributions tracked via description field
+      - Links to Quantity for precise numerical requirements
+    see_also:
+      - https://schema.org/MonetaryAmount
+      - https://ec.europa.eu/research/participants/docs/h2020-funding-guide/grants/applying-for-funding/find-a-call/what-you-need-to-know_en.htm
+    examples:
+      - value:
+          is_or_was_required: true
+          has_or_had_description: "30% co-funding required for all project costs"
+          has_or_had_quantity:
+            - quantity_value: 30
+              has_or_had_measurement_unit:
+                unit_label: "%"
+        description: EU Creative Europe style co-funding (30%)
+      - value:
+          is_or_was_required: true
+          has_or_had_description: "Partnership funding 5-50% depending on grant size; in-kind contributions permitted"
+          has_or_had_quantity:
+            - quantity_value: 5
+              has_or_had_measurement_unit:
+                unit_label: "%"
+            - quantity_value: 50
+              has_or_had_measurement_unit:
+                unit_label: "%"
+        description: NLHF sliding scale co-funding range
+      - value:
+          is_or_was_required: false
+          has_or_had_description: "100% funding rate for academic and non-profit partners"
+        description: Horizon Europe full funding (no co-funding)

schemas/20251121/linkml/modules/classes/CollectionDiscoveryScore.yaml

@@ -0,0 +1,86 @@
+id: https://nde.nl/ontology/hc/class/CollectionDiscoveryScore
+name: collection_discovery_score_class
+title: Collection Discovery Score Class
+# Created per slot_fixes.yaml revision for collection_discovery_score migration
+# RULE 53: Structured score class replacing primitive float
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  sosa: http://www.w3.org/ns/sosa/
+  prov: http://www.w3.org/ns/prov#
+  schema: http://schema.org/
+
+imports:
+  - linkml:types
+  - ../slots/has_or_had_score
+  - ../slots/specificity_annotation
+  - ./SpecificityAnnotation
+  - ./TemplateSpecificityScore
+  - ./TemplateSpecificityType
+  - ./TemplateSpecificityTypes
+
+default_range: string
+
+classes:
+  CollectionDiscoveryScore:
+    class_uri: sosa:Observation
+    description: >-
+      Structured score for collection discovery/exploration relevance.
+      
+      Captures the computed relevance score from search/retrieval algorithms
+      acting as observation systems, along with metadata about when and how
+      the score was computed.
+      
+      **Use cases**:
+      - RAG retrieval relevance scores for collection metadata
+      - Search result ranking scores
+      - Collection exploration priority scores
+      - Template-specific relevance for different query contexts
+      
+      **Score semantics**:
+      - 0.0 = Not relevant to query/context
+      - 0.5 = Moderately relevant
+      - 1.0 = Highly relevant
+    exact_mappings:
+      - sosa:Observation
+    close_mappings:
+      - prov:Entity
+      - schema:Rating
+    slots:
+      - has_or_had_score
+      - specificity_annotation
+    attributes:
+      score_context:
+        range: string
+        description: >-
+          Context or query type for which this score was computed.
+          E.g., "collection_discovery", "archive_search", "museum_search"
+      computed_at:
+        range: datetime
+        description: When the score was computed.
+      algorithm_version:
+        range: string
+        description: >-
+          Version of the scoring algorithm used.
+          Enables reproducibility and score comparison across versions.
+      score_notes:
+        range: string
+        description: Additional notes about the score computation.
+    comments:
+      - "Created per slot_fixes.yaml revision for collection_discovery_score migration"
+      - "Replaces primitive float with structured observation"
+      - "RULE 53: Part of collection_discovery_score → has_or_had_score + CollectionDiscoveryScore migration"
+    annotations:
+      specificity_score: 0.75
+      specificity_rationale: "Fairly specific - applies to collection search/discovery contexts"
+    examples:
+      - value: |
+          has_or_had_score: 0.85
+          score_context: "collection_discovery"
+          computed_at: "2026-01-19T12:00:00Z"
+          algorithm_version: "v1.2.0"
+      - value: |
+          has_or_had_score: 0.92
+          score_context: "archive_search"
+          computed_at: "2026-01-19T14:30:00Z"

schemas/20251121/linkml/modules/classes/CollectionManagementSystem.yaml

@@ -12,12 +12,17 @@ imports:
   - ../slots/documentation_url
   - ./ReconstructedEntity
   - ../slots/is_or_was_available  # MIGRATED: was ../slots/api_available (2026-01-15)
-  - ../slots/cms_category
+  # REMOVED 2026-01-19: ../slots/cms_category - migrated to has_or_had_type + CMSType (Rule 53)
+  - ../slots/has_or_had_type  # was: cms_category - migrated per Rule 53 (2026-01-19)
+  - ./CMSType
+  - ./CMSTypes
   # REMOVED 2026-01-18: ../slots/cms_id - migrated to has_or_had_identifier + Identifier (Rule 53)
   - ../slots/has_or_had_identifier  # was: cms_id - migrated per Rule 53 (2026-01-18)
   - ./Identifier
   # REMOVED 2026-01-18: ../slots/cms_product_name - migrated to has_or_had_label with Label (type: product_name)
-  - ../slots/cms_product_version
+  # REMOVED 2026-01-19: ../slots/cms_product_version - migrated to has_or_had_version + Version (Rule 53)
+  - ../slots/has_or_had_version  # was: cms_product_version - migrated per Rule 53 (2026-01-19)
+  - ./Version
   - ../slots/has_or_had_custodian_type
   - ../slots/deployment_date
   - ../slots/iiif_compatible
@@ -114,10 +119,12 @@ classes:
     - rico:Activity
     slots:
     - is_or_was_available  # MIGRATED: was api_available (2026-01-15)
-    - cms_category
+    # REMOVED 2026-01-19: cms_category - migrated to has_or_had_type with CMSType
+    - has_or_had_type  # was: cms_category - migrated per Rule 53 (2026-01-19)
     - has_or_had_identifier  # was: cms_id - migrated per Rule 53 (2026-01-18)
     # REMOVED 2026-01-18: cms_product_name - migrated to has_or_had_label with Label (type: product_name)
-    - cms_product_version
+    # REMOVED 2026-01-19: cms_product_version - migrated to has_or_had_version + Version (Rule 53)
+    - has_or_had_version  # was: cms_product_version - migrated per Rule 53 (2026-01-19)
     - has_or_had_custodian_type
     - deployment_date
     - documentation_url
@@ -177,18 +184,65 @@ classes:
           See has_or_had_label slot_usage for current pattern.
         deprecated: "Use has_or_had_label with Label(has_or_had_type='product_name')"
       cms_product_version:
-        range: string
+        description: |
+          DEPRECATED 2026-01-19: Migrated to has_or_had_version slot with Version class.
+          This slot_usage entry retained for documentation only.
+          See has_or_had_version slot_usage for current pattern.
+        deprecated: "Use has_or_had_version with Version class"
+      has_or_had_version:  # was: cms_product_version - migrated per Rule 53 (2026-01-19)
+        description: |
+          MIGRATED from cms_product_version per slot_fixes.yaml (Rule 53, 2026-01-19).
+          Version of the CMS software deployed.
+          
+          Uses Version class for structured version representation:
+          - version_string: Full version (e.g., "1.8.0", "7.4")
+          - major_version, minor_version, patch_version: Semantic versioning components
+          - release_date: When this version was released
+          - temporal_extent: When this version was deployed at the custodian
+        range: Version
+        multivalued: true
+        inlined_as_list: true
         examples:
-        - value: 1.8.0
-          description: CollectiveAccess version
-        - value: '7.0'
+        - value:
+            version_string: "1.8.0"
+            major_version: 1
+            minor_version: 8
+            patch_version: 0
+          description: CollectiveAccess version with semantic components
+        - value:
+            version_string: "7.4"
+            major_version: 7
+            minor_version: 4
           description: MuseumPlus version
       cms_category:
-        range: string
+        description: |
+          DEPRECATED 2026-01-19: Migrated to has_or_had_type slot with CMSType class.
+          This slot_usage entry retained for documentation only.
+          See has_or_had_type slot_usage for current pattern.
+        deprecated: "Use has_or_had_type with CMSType class"
+      has_or_had_type:  # was: cms_category - migrated per Rule 53 (2026-01-19)
+        description: |
+          MIGRATED from cms_category per slot_fixes.yaml (Rule 53, 2026-01-19).
+          The type of collection management system.
+          
+          Uses CMSType class hierarchy for structured type representation:
+          - MuseumCMS: Museum-focused collection management (e.g., TMS, CollectiveAccess)
+          - ArchiveCMS: Archives-focused (e.g., ArchivesSpace, MAIS-Flexis)
+          - LibraryCMS: Library-focused (e.g., Koha, Alma)
+          - DigitalAssetManagement: DAM systems (e.g., ResourceSpace)
+          - DigitalRepository: Repository platforms (e.g., DSpace, Fedora)
+          - MixedCMS: Multi-domain systems
+          - CustomCMS: Institution-specific systems
+        range: CMSType
+        inlined: true
         examples:
-        - value: MUSEUM_CMS
+        - value:
+            has_or_had_label: Museum CMS
+            has_or_had_type: museum_cms
           description: Museum-focused CMS
-        - value: ARCHIVE_CMS
+        - value:
+            has_or_had_label: Archive CMS
+            has_or_had_type: archive_cms
           description: Archives-focused CMS
       open_source:
         range: boolean
@@ -382,15 +436,20 @@ classes:
     - http://www.cidoc-crm.org/cidoc-crm/E29_Design_or_Procedure
     - http://usefulinc.com/ns/doap#Project
     examples:
-    # Examples updated for migrated slots (Rule 53) - 2026-01-14, 2026-01-16, 2026-01-18
+    # Examples updated for migrated slots (Rule 53) - 2026-01-14, 2026-01-16, 2026-01-18, 2026-01-19
     - value:
         # cms_id migrated to has_or_had_identifier with Identifier class (2026-01-18)
         has_or_had_identifier:
           identifier_scheme: CMS_URI
           identifier_value: "https://nde.nl/ontology/hc/cms/rijksmuseum-adlib"
         # cms_product_name migrated to has_or_had_label with type: product_name (2026-01-18)
-        cms_product_version: '7.4'
-        cms_category: MUSEUM_CMS
+        # cms_product_version migrated to has_or_had_version with Version class (2026-01-19)
+        has_or_had_version:
+          version_string: "7.4"
+          major_version: 7
+          minor_version: 4
+        # cms_category migrated to has_or_had_type with CMSType (2026-01-19)
+        has_or_had_type: MuseumCMS  # was: cms_category: MUSEUM_CMS
         open_source: false
         license: Proprietary
         has_or_had_label:  # was: vendor_name AND cms_product_name - now uses Label with type discrimination
@@ -425,8 +484,14 @@ classes:
           identifier_scheme: CMS_URI
           identifier_value: "https://nde.nl/ontology/hc/cms/example-museum-collectiveaccess"
         # cms_product_name migrated to has_or_had_label with type: product_name (2026-01-18)
-        cms_product_version: 1.8.0
-        cms_category: MUSEUM_CMS
+        # cms_product_version migrated to has_or_had_version with Version class (2026-01-19)
+        has_or_had_version:
+          version_string: "1.8.0"
+          major_version: 1
+          minor_version: 8
+          patch_version: 0
+        # cms_category migrated to has_or_had_type with CMSType (2026-01-19)
+        has_or_had_type: MuseumCMS  # was: cms_category: MUSEUM_CMS
         open_source: true
         license: GPL-3.0
         has_or_had_label:  # was: vendor_name AND cms_product_name - now uses Label with type discrimination
@@ -462,8 +527,10 @@ classes:
           identifier_scheme: CMS_URI
           identifier_value: "https://nde.nl/ontology/hc/cms/nationaal-archief-mais"
         # cms_product_name migrated to has_or_had_label with type: product_name (2026-01-18)
-        cms_product_version: null
-        cms_category: ARCHIVE_CMS
+        # cms_product_version migrated to has_or_had_version with Version class (2026-01-19)
+        # Version unknown for this CMS deployment
+        # cms_category migrated to has_or_had_type with CMSType (2026-01-19)
+        has_or_had_type: ArchiveCMS  # was: cms_category: ARCHIVE_CMS
         open_source: false
         license: Proprietary
         has_or_had_label:  # was: vendor_name AND cms_product_name - now uses Label with type discrimination

schemas/20251121/linkml/modules/classes/ConfidenceMeasure.yaml

@@ -11,24 +11,16 @@ prefixes:
 imports:
   - linkml:types
   - ../metadata
+  # NOTE: This class uses confidence_value/confidence_method directly (not migrated to is_or_was_generated_by pattern)
+  # because it serves as the range for has_or_had_confidence_measure slot in CustodianObservation, ReconstructionActivity
   - ../slots/confidence_value
   - ../slots/confidence_method
   - ../slots/specificity_annotation
   - ../slots/has_or_had_score  # was: template_specificity - migrated per Rule 53 (2026-01-17)
   - ./SpecificityAnnotation
   - ./TemplateSpecificityScore  # was: TemplateSpecificityScores - migrated per Rule 53 (2026-01-17)
-
   - ./TemplateSpecificityType
-
   - ./TemplateSpecificityTypes
-  - ../slots/confidence_method
-  - ../slots/confidence_value
-  - ../slots/specificity_annotation
-  - ../slots/has_or_had_score  # was: template_specificity - migrated per Rule 53 (2026-01-17)
-  - ../slots/confidence_method
-  - ../slots/confidence_value
-  - ../slots/specificity_annotation
-  - ../slots/has_or_had_score  # was: template_specificity - migrated per Rule 53 (2026-01-17)
 classes:
   ConfidenceMeasure:
     class_uri: prov:Confidence

schemas/20251121/linkml/modules/classes/ConfidenceMethod.yaml

@@ -0,0 +1,135 @@
+# ConfidenceMethod - Method used to calculate confidence scores
+#
+# Created per slot_fixes.yaml migration for: confidence_method
+# Revision: has_or_had_method + ConfidenceMethod
+# Creation date: 2026-01-19
+
+id: https://nde.nl/ontology/hc/class/ConfidenceMethod
+name: confidence_method_class
+title: Confidence Method
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  prov: http://www.w3.org/ns/prov#
+  schema: http://schema.org/
+
+imports:
+  - linkml:types
+  - ../slots/has_or_had_type
+  - ../slots/has_or_had_description
+  - ../slots/has_or_had_identifier
+
+default_prefix: hc
+
+classes:
+  ConfidenceMethod:
+    description: >-
+      A method or algorithm used to calculate confidence scores.
+      
+      **USAGE**:
+      Documents how confidence values were computed:
+      - Fuzzy string matching algorithms
+      - ML model predictions
+      - Rule-based validation
+      - XPath match verification
+      - Human assessment
+      
+      **COMMON METHODS**:
+      | Method | Description |
+      |--------|-------------|
+      | fuzzy_matching | Levenshtein, Jaro-Winkler, etc. |
+      | xpath_validation | XPath match confidence |
+      | llm_classification | LLM-based entity classification |
+      | ml_prediction | Machine learning model output |
+      | human_assessment | Manual quality assessment |
+      | ensemble | Combined multiple methods |
+      
+    class_uri: prov:Plan
+    
+    exact_mappings:
+      - prov:Plan
+    
+    close_mappings:
+      - schema:HowTo
+    
+    slots:
+      - has_or_had_type
+      - has_or_had_description
+      - has_or_had_identifier
+    
+    slot_usage:
+      has_or_had_type:
+        range: string
+        required: true
+        description: >-
+          Type of confidence calculation method.
+        examples:
+          - value: "fuzzy_matching"
+            description: String similarity algorithm
+          - value: "ml_prediction"
+            description: Machine learning model
+          - value: "human_assessment"
+            description: Manual human review
+      
+      has_or_had_description:
+        range: string
+        required: false
+        description: >-
+          Detailed description of the method implementation.
+        examples:
+          - value: "Jaro-Winkler similarity with 0.7 threshold"
+            description: Fuzzy matching configuration
+      
+      has_or_had_identifier:
+        range: string
+        required: false
+        description: >-
+          Identifier for the method (e.g., algorithm name, model version).
+        examples:
+          - value: "rapidfuzz-2.15.1"
+            description: Library version
+    
+    attributes:
+      threshold:
+        range: float
+        description: >-
+          Confidence threshold used by this method for accept/reject decisions.
+        examples:
+          - value: 0.85
+            description: 85% threshold for acceptance
+      
+      is_deterministic:
+        range: boolean
+        description: >-
+          Whether the method produces consistent results for same inputs.
+    
+    annotations:
+      custodian_types: '["*"]'
+      custodian_types_rationale: >-
+        Confidence methods apply universally to data quality assessment.
+      custodian_types_primary: "*"
+      specificity_score: 0.25
+      specificity_rationale: >-
+        Low specificity - fundamental methodology documentation.
+    
+    examples:
+      - value:
+          has_or_had_type: "fuzzy_matching"
+          has_or_had_description: "Levenshtein distance with ratio normalization"
+          has_or_had_identifier: "rapidfuzz-levenshtein"
+          threshold: 0.85
+          is_deterministic: true
+        description: Fuzzy string matching method
+      
+      - value:
+          has_or_had_type: "llm_classification"
+          has_or_had_description: "GPT-4 based entity type classification"
+          has_or_had_identifier: "gpt-4-turbo-2024-04-09"
+          is_deterministic: false
+        description: LLM-based classification method
+    
+    comments:
+      - Created from slot_fixes.yaml migration (2026-01-19)
+      - Documents confidence calculation methodology
+      - Used with ConfidenceScore class

schemas/20251121/linkml/modules/classes/ConfidenceScore.yaml

@@ -0,0 +1,126 @@
+# ConfidenceScore - Confidence score class for quality/certainty measurements
+#
+# Created per slot_fixes.yaml migration for: confidence_score
+# Revision: is_or_was_generated_by + GenerationEvent + has_or_had_score + ConfidenceScore
+# Creation date: 2026-01-19
+
+id: https://nde.nl/ontology/hc/class/ConfidenceScore
+name: confidence_score_class
+title: Confidence Score
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  sosa: http://www.w3.org/ns/sosa/
+  prov: http://www.w3.org/ns/prov#
+  schema: http://schema.org/
+
+imports:
+  - linkml:types
+  - ../slots/has_or_had_score
+  - ../slots/has_or_had_method
+  - ../slots/has_or_had_description
+
+default_prefix: hc
+
+classes:
+  ConfidenceScore:
+    description: >-
+      A structured confidence score representing quality/certainty measurements.
+      
+      **MIGRATION**:
+      Replaces simple `confidence_score` float slot with structured class:
+      - `has_or_had_score`: The numeric value (0.0-1.0)
+      - `has_or_had_method`: How confidence was calculated
+      - `has_or_had_description`: Explanation of confidence assessment
+      
+      **USAGE**:
+      - Process quality assessment (methodology confidence)
+      - Match/similarity confidence (entity resolution)
+      - Extraction confidence (NLP/XPath extraction)
+      - Prediction confidence (ML model outputs)
+      
+      **RANGE**: 0.0 (low confidence) to 1.0 (high confidence)
+      
+      **ONTOLOGY MAPPING**:
+      - sosa:hasSimpleResult for the score value
+      - prov:value as close mapping
+      
+    class_uri: sosa:Result
+    
+    exact_mappings:
+      - sosa:Result
+    
+    close_mappings:
+      - prov:Value
+      - schema:Rating
+    
+    slots:
+      - has_or_had_score
+      - has_or_had_method
+      - has_or_had_description
+    
+    slot_usage:
+      has_or_had_score:
+        range: float
+        minimum_value: 0.0
+        maximum_value: 1.0
+        required: true
+        description: >-
+          The confidence score value, ranging from 0.0 (no confidence) to 1.0 (complete confidence).
+        examples:
+          - value: 0.95
+            description: High confidence (95%)
+          - value: 0.50
+            description: Moderate confidence (50%)
+          - value: 0.10
+            description: Low confidence (10%)
+      
+      has_or_had_method:
+        range: string
+        required: false
+        description: >-
+          Method or algorithm used to calculate the confidence score.
+        examples:
+          - value: "fuzzy_string_matching"
+            description: String similarity method
+          - value: "xpath_extraction_validation"
+            description: XPath match validation
+          - value: "llm_classification"
+            description: LLM-based classification
+      
+      has_or_had_description:
+        range: string
+        required: false
+        description: >-
+          Human-readable explanation of the confidence assessment.
+        examples:
+          - value: "High confidence - exact name match with verified ISIL code"
+            description: Explanation for high score
+    
+    annotations:
+      custodian_types: '["*"]'
+      custodian_types_rationale: >-
+        Confidence scoring applies universally across all data extraction contexts.
+      custodian_types_primary: "*"
+      specificity_score: 0.20
+      specificity_rationale: >-
+        Low specificity - fundamental measurement concept for data quality.
+    
+    examples:
+      - value:
+          has_or_had_score: 0.95
+          has_or_had_method: "xpath_extraction"
+          has_or_had_description: "Exact match found at expected XPath location"
+        description: High confidence XPath extraction
+      
+      - value:
+          has_or_had_score: 0.65
+          has_or_had_method: "fuzzy_string_matching"
+          has_or_had_description: "Moderate similarity to reference name (Levenshtein ratio 0.85)"
+        description: Moderate confidence entity resolution
+    
+    comments:
+      - Created from slot_fixes.yaml migration (2026-01-19)
+      - Replaces simple confidence_score float slot
+      - Used with is_or_was_generated_by slot for provenance

schemas/20251121/linkml/modules/classes/DetectedEntity.yaml

@@ -26,7 +26,10 @@ imports:
   - ../slots/has_or_had_identifier
   - ../slots/has_or_had_label
   - ../slots/has_or_had_type
-  - ../slots/confidence_score
+  # MIGRATED 2026-01-19: confidence_score → is_or_was_generated_by + GenerationEvent + ConfidenceScore
+  - ../slots/is_or_was_generated_by
+  - ./GenerationEvent
+  - ./ConfidenceScore
   - ../slots/start_time
   - ../slots/end_time
   - ../slots/has_or_had_geographic_extent  # was: bounding_box - migrated per Rule 53/56 (2026-01-17)
@@ -107,7 +110,8 @@ classes:
       - has_or_had_identifier
       - has_or_had_label
       - has_or_had_type
-      - confidence_score
+      # MIGRATED 2026-01-19: confidence_score → is_or_was_generated_by
+      - is_or_was_generated_by
       - start_time
       - end_time
       - has_or_had_geographic_extent  # was: bounding_box - migrated per Rule 53/56 (2026-01-17)
@@ -139,16 +143,23 @@ classes:
           - value: "Museum Tour"
           - value: "Opening Credits"
       
-      confidence_score:
-        range: float
+      is_or_was_generated_by:
+        range: GenerationEvent
         required: false
-        minimum_value: 0.0
-        maximum_value: 1.0
-        description: "Detection confidence score (0.0 to 1.0)"
+        inlined: true
+        description: >-
+          Generation event containing confidence score for entity detection.
+          MIGRATED 2026-01-19: Replaces confidence_score slot with structured pattern.
         examples:
-          - value: 0.95
+          - value:
+              has_or_had_score:
+                has_or_had_score: 0.95
+                has_or_had_method: "computer_vision"
             description: "High confidence detection"
-          - value: 0.62
+          - value:
+              has_or_had_score:
+                has_or_had_score: 0.62
+                has_or_had_method: "ocr_extraction"
             description: "Moderate confidence, may need review"
       
       start_time:
@@ -188,9 +199,10 @@ classes:
     comments:
       - "Base class for automated detection results"
       - "Use has_or_had_type to link to specific Type classes (TransitionType, TextType)"
-      - "Captures detection metadata: confidence, timestamps, bounding boxes"
+      - "Captures detection metadata: confidence (via is_or_was_generated_by), timestamps, bounding boxes"
       - "Generated by detection activities (prov:wasGeneratedBy pattern)"
       - "Rule 39 compliant: uses has_or_had_* slot naming"
+      - "MIGRATED 2026-01-19: confidence_score → is_or_was_generated_by + ConfidenceScore"
     
     see_also:
       - https://www.w3.org/TR/prov-o/#Entity
@@ -201,7 +213,10 @@ classes:
       - value:
           has_or_had_identifier: "transition-001"
           has_or_had_type: "TransitionType:FADE_IN"
-          confidence_score: 0.95
+          is_or_was_generated_by:
+            has_or_had_score:
+              has_or_had_score: 0.95
+              has_or_had_method: "video_analysis"
           start_time: "00:03:15"
           end_time: "00:03:17"
         description: "Video transition detection (fade in)"
@@ -210,6 +225,9 @@ classes:
           has_or_had_identifier: "text-001"
           has_or_had_type: "TextType:TITLE"
           has_or_had_label: "Museum Tour Guide"
-          confidence_score: 0.87
+          is_or_was_generated_by:
+            has_or_had_score:
+              has_or_had_score: 0.87
+              has_or_had_method: "ocr_extraction"
           has_or_had_geographic_extent: [100.0, 50.0, 400.0, 150.0]  # was: bounding_box
         description: "On-screen text detection"

schemas/20251121/linkml/modules/classes/EducationProviderType.yaml

@@ -66,7 +66,8 @@ imports:
   - ./TemplateSpecificityTypes
   - ../slots/education_level
   - ../slots/has_or_had_academic_program
-  - ../slots/collection_access
+  - ../slots/offers_or_offered_access
+  - ./Access
   # REMOVED 2026-01-15: teaching_collection, student_service imports - defined locally as attributes, slots archived
   - ../slots/has_or_had_accreditation
   - ../slots/education_provider_subtype
@@ -367,77 +368,15 @@ classes:
         range: string
         multivalued: true
         slot_uri: aiiso:programme
-      collection_access:
-        description: 'Access policies for heritage collections, especially concerning student and faculty use.
-
-
-          Academic Community Access:
-
-          - Students enrolled: Undergraduate, graduate, doctoral students
-
-          - Faculty and staff: Teaching faculty, research faculty, emeritus
-
-          - Academic affiliates: Visiting scholars, postdocs, adjuncts
-
-
-          Curriculum Integration:
-
-          - Class visits: Scheduled visits as part of coursework
-
-          - Hands-on learning: Object-based teaching with collection items
-
-          - Laboratory access: Specimen examination for science students
-
-          - Research use: Thesis/dissertation research, faculty research projects
-
-
-          External Access:
-
-          - Public visiting hours: Open to general public (specific days/times)
-
-          - Appointment required: By-appointment access for researchers
-
-          - Restricted access: Academic credentials required
-
-          - Membership programs: Community membership for non-affiliated users
-
-
-          Digital Access:
-
-          - Online catalog: Searchable collection database
-
-          - Digital collections: Digitized materials available online
-
-          - Virtual exhibitions: Online exhibition programming
-
-          - Learning management integration: Collections in course management systems
-
-
-          Special Restrictions:
-
-          - Conservation concerns: Fragile materials limited access
-
-          - Donor restrictions: Bequest conditions limiting use
-
-          - Privacy restrictions: Student records, personnel files
-
-          - Security restrictions: High-value items in secure storage
-
-
-          Examples:
-
-          - "Open to enrolled students and faculty; public by appointment"
-
-          - "Class visits scheduled through instructors; public gallery hours Wednesday-Saturday"
-
-          - "Digital collections open access; physical materials require university ID"
-
-
-          This field maps to Schema.org and CIDOC-CRM access properties.
-
-          '
-        range: string
-        slot_uri: schema:publicAccess
+      offers_or_offered_access:
+        description: >-
+          Access offerings for heritage collections, especially concerning student and faculty use.
+          Uses structured Access class to capture access type, eligible users, conditions, and restrictions.
+          Education providers typically offer multiple access types for different user groups.
+        range: Access
+        multivalued: true
+        inlined: true
+        inlined_as_list: true
       teaching_collection:
         description: 'Description of collections specifically maintained for educational purposes and
 

schemas/20251121/linkml/modules/classes/Event.yaml

@@ -16,7 +16,6 @@ imports:
   - ./TimeSpan
   - ../enums/EventTypeEnum
   - ../slots/event_description
-  - ../slots/confidence_score
   - ../slots/event_id
   - ../slots/documentation_source
   - ../slots/event_label
@@ -28,32 +27,12 @@ imports:
   - ../slots/takes_or_took_place_at  # was: took_place_at - migrated per Rule 53
   - ./SpecificityAnnotation
   - ./TemplateSpecificityScore  # was: TemplateSpecificityScores - migrated per Rule 53 (2026-01-17)
-
   - ./TemplateSpecificityType
-
   - ./TemplateSpecificityTypes
-  - ../slots/confidence_score
-  - ../slots/documentation_source
-  - ../slots/event_description
-  - ../slots/event_id
-  - ../slots/event_label
-  - ../slots/has_or_had_involved_actor
-  - ../slots/has_timespan
-  - ../slots/hypernym_event_type
-  - ../slots/specificity_annotation
-  - ../slots/takes_or_took_place_at
-  - ../slots/has_or_had_score  # was: template_specificity - migrated per Rule 53 (2026-01-17)
-  - ../slots/confidence_score
-  - ../slots/documentation_source
-  - ../slots/event_description
-  - ../slots/event_id
-  - ../slots/event_label
-  - ../slots/has_or_had_involved_actor
-  - ../slots/has_timespan
-  - ../slots/hypernym_event_type
-  - ../slots/specificity_annotation
-  - ../slots/takes_or_took_place_at
-  - ../slots/has_or_had_score  # was: template_specificity - migrated per Rule 53 (2026-01-17)
+  # MIGRATED 2026-01-19: confidence_score → is_or_was_generated_by + GenerationEvent + ConfidenceScore
+  - ../slots/is_or_was_generated_by
+  - ./GenerationEvent
+  - ./ConfidenceScore
 classes:
   Event:
     class_uri: crm:E5_Event
@@ -105,7 +84,6 @@ classes:
     - crm:E85_Joining
     - crm:E86_Leaving
     slots:
-    - confidence_score
     - documentation_source
     - event_description
     - event_id
@@ -116,6 +94,7 @@ classes:
     - specificity_annotation
     - has_or_had_score  # was: template_specificity - migrated per Rule 53 (2026-01-17)
     - takes_or_took_place_at  # was: took_place_at - migrated per Rule 53
+    - is_or_was_generated_by  # MIGRATED 2026-01-19: replaces confidence_score
     slot_usage:
       event_id:
         required: true
@@ -124,6 +103,19 @@ classes:
         required: true
       has_timespan:
         required: false
+      is_or_was_generated_by:
+        range: GenerationEvent
+        required: false
+        inlined: true
+        description: >-
+          Generation event containing confidence score for this event.
+          MIGRATED 2026-01-19: Replaces confidence_score slot with structured pattern.
+        examples:
+          - value:
+              has_or_had_score:
+                has_or_had_score: 0.95
+                has_or_had_method: "documentation_verification"
+            description: High confidence from verified documentation
     comments:
     - Event is the hub class for all temporal phenomena in the HC ontology
     - Domain-specific events (OrganizationalChangeEvent, CollectionEvent) can inherit from Event
@@ -131,6 +123,7 @@ classes:
     - Actor links (involved_actors) connect events to both persons and organizations
     - hypernym_event_type provides cross-domain event queries
     - 'Future: Add participated_in_events slot to Custodian and Person for inverse navigation'
+    - 'MIGRATED 2026-01-19: confidence_score → is_or_was_generated_by + ConfidenceScore'
     examples:
     - value:
         event_id: https://nde.nl/ontology/hc/event/nha-merger-2001
@@ -142,4 +135,8 @@ classes:
         has_or_had_involved_actor:
         - https://nde.nl/ontology/hc/nl-nh-haa-a-gah
         - https://nde.nl/ontology/hc/nl-nh-haa-a-ranh
-      description: Merger of two archives to form Noord-Hollands Archief
+        is_or_was_generated_by:
+          has_or_had_score:
+            has_or_had_score: 0.95
+            has_or_had_method: documentation_verification
+      description: Merger of two archives to form Noord-Hollands Archief with structured confidence score

schemas/20251121/linkml/modules/classes/Exhibition.yaml

@@ -25,7 +25,10 @@ imports:
   - ../slots/has_or_had_identifier
   - ./WikiDataIdentifier
   - ../slots/exhibition_type
-  - ../slots/co_organized_by
+  # REMOVED 2026-01-19: co_organized_by - migrated to has_or_had_organizer + Organizer (Rule 53)
+  - ../slots/has_or_had_organizer
+  - ./Organizer
+  - ./OrganizerRole
   - ../slots/curated_by
   - ../slots/has_or_had_custodian_type
   - ../slots/exhibition_catalog_url
@@ -92,7 +95,8 @@ classes:
     - schema:Event
     - crm:E4_Period
     slots:
-    - co_organized_by
+    # REMOVED 2026-01-19: co_organized_by - migrated to has_or_had_organizer + Organizer (Rule 53)
+    - has_or_had_organizer
     - curated_by
     - has_or_had_custodian_type
     - end_date
@@ -168,13 +172,42 @@ classes:
         examples:
         - value: https://nde.nl/ontology/hc/custodian/nl/rijksmuseum
         - value: https://nde.nl/ontology/hc/custodian/nl/mauritshuis
-      co_organized_by:
+      # REMOVED 2026-01-19: co_organized_by - migrated to has_or_had_organizer + Organizer (Rule 53)
+      # co_organized_by:
+      #   required: false
+      #   range: uriorcurie
+      #   multivalued: true
+      #   inlined: false
+      #   examples:
+      #   - value: https://nde.nl/ontology/hc/custodian/us/national-gallery-washington
+      has_or_had_organizer:
         required: false
-        range: uriorcurie
+        range: Organizer
         multivalued: true
-        inlined: false
+        inlined: true
+        inlined_as_list: true
+        description: |
+          Organizations that organize this exhibition.
+          MIGRATED 2026-01-19: Replaces co_organized_by slot per Rule 53.
+          Includes primary organizers, co-organizers, sponsors with curatorial input.
         examples:
-        - value: https://nde.nl/ontology/hc/custodian/us/national-gallery-washington
+        - value:
+            organizer_entity: https://nde.nl/ontology/hc/custodian/nl/rijksmuseum
+            has_or_had_role:
+              role_type: PRIMARY
+          description: "Rijksmuseum as primary organizer"
+        - value:
+            organizer_entity: https://nde.nl/ontology/hc/custodian/nl/mauritshuis
+            has_or_had_role:
+              role_type: CO_ORGANIZER
+            organizer_contribution: "Provided key loans including Girl with a Pearl Earring"
+          description: "Mauritshuis as co-organizer"
+        - value:
+            organizer_entity: https://nde.nl/ontology/hc/custodian/us/national-gallery-washington
+            has_or_had_role:
+              role_type: LENDING_INSTITUTION
+            organizer_contribution: "Lent Woman Holding a Balance"
+          description: "National Gallery Washington as lending institution"
       curated_by:
         required: false
         range: string
@@ -360,10 +393,15 @@ classes:
 
           '
         exhibition_type: BLOCKBUSTER
-        organized_by:
-        - https://nde.nl/ontology/hc/custodian/nl/rijksmuseum
-        co_organized_by:
-        - https://nde.nl/ontology/hc/custodian/nl/mauritshuis
+        # MIGRATED 2026-01-19: organized_by/co_organized_by → has_or_had_organizer + Organizer (Rule 53)
+        has_or_had_organizer:
+        - organizer_entity: https://nde.nl/ontology/hc/custodian/nl/rijksmuseum
+          has_or_had_role:
+            role_type: PRIMARY
+        - organizer_entity: https://nde.nl/ontology/hc/custodian/nl/mauritshuis
+          has_or_had_role:
+            role_type: CO_ORGANIZER
+          organizer_contribution: "Provided Girl with a Pearl Earring and 5 other Vermeers"
         curated_by:
         - Pieter Roelofs
         - Gregor J.M. Weber
@@ -407,8 +445,10 @@ classes:
         exhibition_name: Voices from the War
         exhibition_subtitle: Personal Stories from World War II Archives
         exhibition_type: ARCHIVAL
-        organized_by:
-        - https://nde.nl/ontology/hc/custodian/nl/nationaal-archief
+        has_or_had_organizer:
+        - organizer_entity: https://nde.nl/ontology/hc/custodian/nl/nationaal-archief
+          has_or_had_role:
+            role_type: PRIMARY
         start_date: '2024-05-04'
         end_date: '2024-11-11'
         exhibition_location:
@@ -428,8 +468,10 @@ classes:
 
           '
         exhibition_type: PERMANENT
-        organized_by:
-        - https://nde.nl/ontology/hc/custodian/nl/rijksmuseum
+        has_or_had_organizer:
+        - organizer_entity: https://nde.nl/ontology/hc/custodian/nl/rijksmuseum
+          has_or_had_role:
+            role_type: PRIMARY
         exhibition_venue: Gallery of Honour (Eregalerij)
         featured_work:
         - The Night Watch (Rembrandt)

schemas/20251121/linkml/modules/classes/FindingAid.yaml

@@ -43,7 +43,11 @@ imports:
   - ../slots/has_or_had_provenance_path
   - ./XPath
   - ../slots/css_selector
-  - ../slots/confidence
+  # REMOVED 2026-01-19: ../slots/confidence - migrated to is_or_was_generated_by + GenerationEvent + ConfidenceScore (Rule 53)
+  - ../slots/is_or_was_generated_by
+  - ./GenerationEvent
+  - ./ConfidenceScore
+  - ./ConfidenceMethod
   - ../slots/html_file
   # REMOVED 2026-01-18: ../slots/claim_id - migrated to has_or_had_identifier + Identifier (Rule 53)
   - ../slots/has_or_had_identifier

schemas/20251121/linkml/modules/classes/GenerationEvent.yaml

@@ -2,6 +2,7 @@
 #
 # Created per slot_fixes.yaml migration for: chapters_generated_at
 # Revision specifies: GenerationEvent with has_or_had_provenance + temporal_extent
+# Updated 2026-01-19: Added has_or_had_score for confidence tracking (confidence_* migration)
 # Creation date: 2026-01-19
 
 id: https://nde.nl/ontology/hc/class/GenerationEvent
@@ -21,6 +22,8 @@ imports:
   - ../slots/temporal_extent
   - ./TimeSpan
   - ../slots/has_or_had_description
+  - ../slots/has_or_had_score
+  - ./ConfidenceScore
 
 default_prefix: hc
 
@@ -34,11 +37,13 @@ classes:
       - Video chapter generation (manual, AI, imported)
       - Content extraction events
       - Automated processing activities
+      - Confidence scoring for generated content
       
       **STRUCTURE**:
       - temporal_extent: When the generation occurred (TimeSpan)
       - has_or_had_provenance: Who/what performed the generation (Provenance)
       - has_or_had_description: Details about the generation process
+      - has_or_had_score: Confidence score for the generated content (ConfidenceScore)
       
       **ONTOLOGY ALIGNMENT**:
       - Maps to prov:Generation (PROV-O generation event)
@@ -56,6 +61,7 @@ classes:
       - temporal_extent
       - has_or_had_provenance
       - has_or_had_description
+      - has_or_had_score
     
     slot_usage:
       temporal_extent:
@@ -88,3 +94,40 @@ classes:
         examples:
           - value: "Generated using Whisper transcript segmentation"
             description: Description of generation method
+      
+      has_or_had_score:
+        description: >-
+          Confidence score for the generation output. Uses ConfidenceScore class
+          to capture structured confidence with method and explanation.
+        range: ConfidenceScore
+        required: false
+        inlined: true
+        examples:
+          - value:
+              has_or_had_score: 0.95
+              has_or_had_method: "xpath_extraction"
+              has_or_had_description: "High confidence - exact match at expected location"
+            description: Confidence score for generated content
+    
+    annotations:
+      custodian_types: '["*"]'
+      custodian_types_rationale: >-
+        Generation events are universal for tracking content creation.
+      custodian_types_primary: "*"
+      specificity_score: 0.30
+      specificity_rationale: >-
+        Moderately low specificity - used across many content types.
+    
+    examples:
+      - value:
+          temporal_extent:
+            begin_of_the_begin: "2024-01-15T10:30:00Z"
+          has_or_had_description: "AI-generated video chapters from transcript"
+          has_or_had_score:
+            has_or_had_score: 0.92
+            has_or_had_method: "transcript_segmentation"
+        description: Video chapter generation event with confidence
+    
+    comments:
+      - Created from slot_fixes.yaml migration (2026-01-19)
+      - Updated 2026-01-19 to include has_or_had_score for confidence tracking

schemas/20251121/linkml/modules/classes/Hypothesis.yaml

@@ -15,7 +15,11 @@ prefixes:
 
 imports:
   - linkml:types
-  - ../slots/confidence_score
+  # REMOVED 2026-01-19: ../slots/confidence_score - migrated to is_or_was_generated_by + GenerationEvent + ConfidenceScore (Rule 53)
+  - ../slots/is_or_was_generated_by
+  - ./GenerationEvent
+  - ./ConfidenceScore
+  - ./ConfidenceMethod
 
 default_range: string
 
@@ -50,7 +54,8 @@ classes:
       - skos:note
     
     slots:
-      - confidence_score
+      # REMOVED 2026-01-19: confidence_score - migrated to is_or_was_generated_by (Rule 53)
+      - is_or_was_generated_by
     
     attributes:
       asserted_value:
@@ -107,7 +112,10 @@ classes:
           Hypothesis:
             asserted_value: "MUSEUM"
             confidence_level: "medium"
-            confidence_score: 0.65
+            is_or_was_generated_by:
+              has_or_had_score:
+                has_or_had_score: 0.65
+                has_or_had_method: "type_inference_from_website"
             supporting_evidence:
               - "Website mentions 'exhibitions'"
               - "Has physical visitor address"
@@ -121,10 +129,16 @@ classes:
           Hypothesis:
             asserted_value: "COLLECTING_SOCIETY"
             confidence_level: "high"
-            confidence_score: 0.85
+            is_or_was_generated_by:
+              has_or_had_score:
+                has_or_had_score: 0.85
+                has_or_had_method: "name_pattern_analysis"
             supporting_evidence:
               - "Name contains 'Historische Vereniging'"
               - "Membership-based organization"
               - "Maintains local archive"
         description: >-
           High-confidence hypothesis for a collecting society.
+    
+    comments:
+      - 'MIGRATED 2026-01-19: confidence_score → is_or_was_generated_by + ConfidenceScore'

schemas/20251121/linkml/modules/classes/LLMResponse.yaml

@@ -34,7 +34,9 @@ imports:
   - ../slots/latency_ms
   - ../slots/has_or_had_mode  # was: thinking_mode - migrated per Rule 53/56 (2026-01-16)
   - ./ThinkingMode  # for has_or_had_mode range
-  - ../slots/clear_thinking
+  # clear_thinking migrated to preserves_or_preserved + ReasoningContent per Rule 53 (2026-01-19)
+  - ../slots/preserves_or_preserved
+  - ./ReasoningContent  # for preserves_or_preserved range
   - ../slots/created
   - ../slots/cost_usd
   - ../slots/request_id
@@ -53,7 +55,7 @@ classes:
       \n2. **Preserved Thinking** (new in GLM-4.7):\n   - Retains reasoning_content from previous assistant turns in context\n\
       \   - Preserves reasoning continuity across multi-turn conversations\n   - Improves model performance and increases\
       \ cache hit rates\n   - **Enabled by default on Coding Plan endpoint**\n   - Requires returning EXACT, UNMODIFIED reasoning_content\
-      \ back to API\n   - Set via: `\"clear_thinking\": false` (do NOT clear previous reasoning)\n\n3. **Turn-level Thinking**\
+      \ back to API\n   - Set via: `preserves_or_preserved` with `is_preserved: true` (preserve previous reasoning)\n\n3. **Turn-level Thinking**\
       \ (new in GLM-4.7):\n   - Control reasoning computation on a per-turn basis\n   - Enable/disable thinking independently\
       \ for each request in a session\n   - Useful for balancing speed (simple queries) vs accuracy (complex tasks)\n   -\
       \ Set via: `\"thinking\": {\"type\": \"enabled\"}` or `\"thinking\": {\"type\": \"disabled\"}`\n\n**Critical Implementation\
@@ -71,7 +73,7 @@ classes:
     - schema:CreativeWork
     slots:
     - has_or_had_token  # was: cached_token AND completion_token - migrated per Rule 53/56 (2026-01-17, 2026-01-19)
-    - clear_thinking
+    - preserves_or_preserved  # was: clear_thinking - migrated per Rule 53 (2026-01-19)
     # completion_token removed - now use has_or_had_token with OutputTokenType
     - content
     - cost_usd
@@ -226,14 +228,30 @@ classes:
             mode_value: disabled
             has_or_had_label: Disabled
           description: Disabled for fast, simple queries
-      clear_thinking:
-        range: boolean
+      # REMOVED 2026-01-19: clear_thinking - migrated to preserves_or_preserved + ReasoningContent
+      # clear_thinking: range: boolean (false=preserve reasoning, true=clear reasoning)
+      preserves_or_preserved:
+        description: |
+          Reasoning content preserved across conversation turns.
+          MIGRATED 2026-01-19: Replaces clear_thinking boolean per Rule 53/56.
+          
+          When populated with is_preserved: true, equivalent to old clear_thinking: false
+          (Preserved Thinking enabled - keep reasoning for better cache hits).
+        range: ReasoningContent
+        inlined: true
+        multivalued: true
         required: false
         examples:
-        - value: false
-          description: Keep reasoning for Preserved Thinking (recommended)
-        - value: true
-          description: Clear previous reasoning (fresh context each turn)
+        - value:
+            is_preserved: true
+            has_or_had_label: Preserved Reasoning
+            content_text: The user is asking about Dutch heritage institutions...
+            turn_number: 3
+          description: Preserved reasoning content (equivalent to clear_thinking false)
+        - value:
+            is_preserved: false
+            has_or_had_label: Fresh Context
+          description: Cleared reasoning (equivalent to clear_thinking true)
     comments:
     - reasoning_content is the key field for Interleaved Thinking (GLM 4.7)
     - Store reasoning_content for debugging, auditing, and DSPy optimization

schemas/20251121/linkml/modules/classes/MuseumType.yaml

@@ -4,7 +4,9 @@ title: Museum Type Classification
 imports:
   - linkml:types
   - ./CustodianType
-  - ../slots/collection_focus
+  # REMOVED 2026-01-19: ../slots/collection_focus - migrated to has_or_had_category + Category (Rule 53)
+  - ../slots/has_or_had_category
+  - ./Category
   # - ../slots/cataloging_standard  # ARCHIVED 2026-01-17: migrated to complies_or_complied_with + CatalogingStandard per Rule 53/56
   - ../slots/complies_or_complied_with
   - ./CatalogingStandard
@@ -139,7 +141,8 @@ classes:
       \ entities with type='M'\nin `data/wikidata/GLAMORCUBEPSXHFN/hyponyms_curated_full.yaml`.\n"
     slots:
     - complies_or_complied_with  # was: cataloging_standard - migrated per Rule 53/56 (2026-01-17)
-    - collection_focus
+    # REMOVED 2026-01-19: collection_focus - migrated to has_or_had_category + Category (Rule 53)
+    - has_or_had_category
     - conservation_lab
     - has_or_had_custodian_type
     - exhibition_program
@@ -179,6 +182,13 @@ classes:
         range: CatalogingStandard
         inlined: true
         multivalued: true
+      has_or_had_category:  # was: collection_focus - migrated per Rule 53 (2026-01-19)
+        description: |
+          MIGRATED from collection_focus per slot_fixes.yaml (Rule 53, 2026-01-19).
+          Subject areas and thematic focus of the museum's collections using Category class.
+        range: Category
+        inlined: true
+        multivalued: true
     exact_mappings:
     - skos:Concept
     - schema:Museum
@@ -206,10 +216,13 @@ classes:
         - Kunstmuseum@de
         has_or_had_description: museum that primarily exhibits works of art  # was: type_description - migrated per Rule 53/56 (2026-01-16)
         has_or_had_hypernym: https://nde.nl/ontology/hc/type/museum/Q33506  # was: broader_type - migrated per Rule 53 (2026-01-17)
-        collection_focus:
-        - paintings
-        - sculptures
-        - decorative arts
+        has_or_had_category:  # was: collection_focus - migrated per Rule 53 (2026-01-19)
+        - category_name: paintings
+          category_type: TYPOLOGY
+        - category_name: sculptures
+          category_type: TYPOLOGY
+        - category_name: decorative arts
+          category_type: TYPOLOGY
         exhibition_program: rotating exhibitions with permanent collection
         has_or_had_facility:  # was: visitor_facility
         - facility_name: Museum Café
@@ -235,11 +248,15 @@ classes:
         - natuurhistorisch museum@nl
         has_or_had_description: museum that exhibits natural history specimens  # was: type_description - migrated per Rule 53/56 (2026-01-16)
         has_or_had_hypernym: https://nde.nl/ontology/hc/type/museum/Q33506  # was: broader_type - migrated per Rule 53 (2026-01-17)
-        collection_focus:
-        - biological specimens
-        - fossils
-        - minerals
-        - taxidermy
+        has_or_had_category:  # was: collection_focus - migrated per Rule 53 (2026-01-19)
+        - category_name: biological specimens
+          category_type: TYPOLOGY
+        - category_name: fossils
+          category_type: TYPOLOGY
+        - category_name: minerals
+          category_type: MATERIAL
+        - category_name: taxidermy
+          category_type: TYPOLOGY
         exhibition_program: permanent collection with themed galleries
         complies_or_complied_with:  # was: cataloging_standard - migrated per Rule 53/56 (2026-01-17)
           - has_or_had_identifier: Darwin Core

schemas/20251121/linkml/modules/classes/NotableExample.yaml

@@ -0,0 +1,32 @@
+id: https://nde.nl/ontology/hc/class/NotableExample
+name: NotableExample-class
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  skos: http://www.w3.org/2004/02/skos/core#
+  schema: http://schema.org/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../slots/example_name
+  - ../slots/example_location
+  - ../slots/example_wikidata_id
+  - ../slots/example_note
+
+classes:
+  NotableExample:
+    class_uri: hc:NotableExample
+    description: |
+      A real-world example of a heritage institution of this type.
+      Provides concrete instances for understanding the class scope.
+    slots:
+      - example_name
+      - example_location
+      - example_wikidata_id
+      - example_note
+    annotations:
+      specificity_score: 0.3
+      specificity_rationale: "Universal utility for concrete examples"

schemas/20251121/linkml/modules/classes/Organizer.yaml

@@ -0,0 +1,162 @@
+# Organizer class
+# Entity that organizes events, exhibitions, programs with role specification
+#
+# Created per slot_fixes.yaml revision for co_organized_by migration
+# Generation date: 2026-01-19
+# Rule compliance: 53 (slot_fixes.yaml), 39 (RiC-O naming)
+
+id: https://nde.nl/ontology/hc/class/Organizer
+name: Organizer
+title: Organizer Class
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+  org: http://www.w3.org/ns/org#
+  prov: http://www.w3.org/ns/prov#
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../metadata
+  - ../slots/has_or_had_role
+  - ./OrganizerRole
+
+classes:
+  Organizer:
+    class_uri: schema:Organization
+    description: |
+      An entity that organizes or organized an event, exhibition, program, or activity.
+      
+      **Purpose**:
+      Captures the organizing entity along with their role, replacing simple
+      uriorcurie references like `co_organized_by` or `organized_by`.
+      
+      **Key Properties**:
+      - `organizer_entity`: Reference to the organizing institution (Custodian, Organization)
+      - `has_or_had_role`: Role of the organizer (PRIMARY, CO_ORGANIZER, etc.)
+      - `organizer_contribution`: Description of organizational contribution
+      
+      **Pattern**:
+      Instead of separate `organized_by` and `co_organized_by` slots with plain URIs,
+      use a single `has_or_had_organizer` slot with Organizer instances that specify roles.
+      
+      **Example Migration**:
+      ```yaml
+      # OLD (deprecated):
+      organized_by:
+        - https://nde.nl/ontology/hc/custodian/nl/rijksmuseum
+      co_organized_by:
+        - https://nde.nl/ontology/hc/custodian/nl/mauritshuis
+      
+      # NEW (Rule 53):
+      has_or_had_organizer:
+        - organizer_entity: https://nde.nl/ontology/hc/custodian/nl/rijksmuseum
+          has_or_had_role:
+            role_type: PRIMARY
+        - organizer_entity: https://nde.nl/ontology/hc/custodian/nl/mauritshuis
+          has_or_had_role:
+            role_type: CO_ORGANIZER
+      ```
+      
+      **Ontological Alignment**:
+      - **Primary**: `schema:Organization` (organizer is an organization)
+      - **Close**: `org:Organization` (W3C Org vocabulary)
+      - **Related**: `prov:Agent` (PROV-O agent in activity)
+      
+    exact_mappings:
+      - schema:Organization
+    
+    close_mappings:
+      - org:Organization
+    
+    related_mappings:
+      - prov:Agent
+    
+    slots:
+      - organizer_entity
+      - has_or_had_role
+      - organizer_contribution
+    
+    slot_usage:
+      organizer_entity:
+        required: true
+        range: uriorcurie
+        description: |
+          Reference to the organizing institution (Custodian, Organization).
+          This is the entity that actually does the organizing.
+        examples:
+          - value: "https://nde.nl/ontology/hc/custodian/nl/rijksmuseum"
+            description: "Rijksmuseum as organizer"
+      
+      has_or_had_role:
+        required: false
+        range: OrganizerRole
+        inlined: true
+        description: |
+          Role of this organizer (PRIMARY, CO_ORGANIZER, SPONSOR_ORGANIZER, etc.).
+          If omitted, implies general organizational involvement.
+        examples:
+          - value:
+              role_type: PRIMARY
+            description: "Primary organizer role"
+      
+      organizer_contribution:
+        required: false
+        range: string
+        description: |
+          Description of organizational contribution.
+          Examples: "Provided 15 works from permanent collection",
+          "Funded conservation of borrowed works", "Curatorial expertise"
+        examples:
+          - value: "Provided 15 works from permanent collection and curatorial expertise"
+            description: "Description of Mauritshuis contribution to Vermeer exhibition"
+    
+    annotations:
+      specificity_score: 0.55
+      specificity_rationale: "Moderately specific - applies to any event organization context"
+      custodian_types: '["*"]'
+      custodian_types_rationale: "Any institution type can organize events/exhibitions"
+    
+    comments:
+      - "Created per slot_fixes.yaml revision for co_organized_by migration"
+      - "Replaces separate organized_by/co_organized_by with role-based discrimination"
+      - "RULE 53: Part of co_organized_by → has_or_had_organizer + Organizer migration"
+    
+    examples:
+      - value:
+          organizer_entity: "https://nde.nl/ontology/hc/custodian/nl/rijksmuseum"
+          has_or_had_role:
+            role_type: PRIMARY
+            role_description: "Main organizing institution"
+        description: "Rijksmuseum as primary organizer of Vermeer exhibition"
+      
+      - value:
+          organizer_entity: "https://nde.nl/ontology/hc/custodian/nl/mauritshuis"
+          has_or_had_role:
+            role_type: CO_ORGANIZER
+            role_description: "Partner institution providing key loans"
+          organizer_contribution: "Provided Girl with a Pearl Earring and 5 other Vermeers"
+        description: "Mauritshuis as co-organizer with specific contribution"
+      
+      - value:
+          organizer_entity: "https://nde.nl/ontology/hc/custodian/us/national-gallery-washington"
+          has_or_had_role:
+            role_type: LENDING_INSTITUTION
+          organizer_contribution: "Lent Woman Holding a Balance"
+        description: "National Gallery Washington as lending institution"
+
+slots:
+  organizer_entity:
+    slot_uri: schema:organizer
+    description: Reference to the organizing institution
+    range: uriorcurie
+    required: true
+  
+  organizer_contribution:
+    slot_uri: schema:description
+    description: Description of organizational contribution
+    range: string
+    required: false

schemas/20251121/linkml/modules/classes/OrganizerRole.yaml

@@ -0,0 +1,121 @@
+# OrganizerRole class
+# Enumeration-like class for organizer roles in events/exhibitions
+#
+# Created per slot_fixes.yaml revision for co_organized_by migration
+# Generation date: 2026-01-19
+# Rule compliance: 53 (slot_fixes.yaml), 39 (RiC-O naming), 0b (Type/Types pattern)
+
+id: https://nde.nl/ontology/hc/class/OrganizerRole
+name: OrganizerRole
+title: Organizer Role Class
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+  skos: http://www.w3.org/2004/02/skos/core#
+  prov: http://www.w3.org/ns/prov#
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../metadata
+
+classes:
+  OrganizerRole:
+    class_uri: schema:Role
+    description: |
+      Role of an organizer in an event, exhibition, or program.
+      
+      **Purpose**:
+      Distinguishes between different types of organizational involvement:
+      - PRIMARY: Main organizing institution
+      - CO_ORGANIZER: Partner institution with significant organizational role
+      - SPONSOR_ORGANIZER: Sponsor with curatorial/organizational input
+      - LENDING_INSTITUTION: Institution lending objects with exhibition involvement
+      - HOST_VENUE: Venue hosting a traveling exhibition
+      
+      **Pattern**:
+      Used with Organizer class to specify the role of an organizing entity.
+      
+      **Ontological Alignment**:
+      - **Primary**: `schema:Role` - Schema.org role
+      - **Close**: `prov:Role` - PROV-O role in activity
+      
+    exact_mappings:
+      - schema:Role
+    
+    close_mappings:
+      - prov:Role
+    
+    slots:
+      - role_type
+      - role_description
+    
+    slot_usage:
+      role_type:
+        required: true
+        range: OrganizerRoleTypeEnum
+        description: Type of organizer role (PRIMARY, CO_ORGANIZER, etc.)
+      role_description:
+        required: false
+        range: string
+        description: Additional description of the role
+    
+    annotations:
+      specificity_score: 0.65
+      specificity_rationale: "Fairly specific - applies to event/exhibition organization contexts"
+      custodian_types: '["M", "G", "A", "L", "R"]'
+      custodian_types_rationale: "Primarily used by museums, galleries, archives, libraries, research centers that organize exhibitions"
+    
+    comments:
+      - "Created per slot_fixes.yaml revision for co_organized_by migration"
+      - "Used with Organizer class to specify organizational involvement"
+      - "RULE 53: Part of co_organized_by → has_or_had_organizer + Organizer migration"
+    
+    examples:
+      - value:
+          role_type: PRIMARY
+          role_description: "Main organizing institution"
+        description: "Primary organizer role"
+      - value:
+          role_type: CO_ORGANIZER
+          role_description: "Partner institution contributing loans and curatorial expertise"
+        description: "Co-organizer role with description"
+      - value:
+          role_type: LENDING_INSTITUTION
+          role_description: "Major lender with exhibition advisory role"
+        description: "Lending institution with organizational involvement"
+
+slots:
+  role_type:
+    slot_uri: schema:roleName
+    description: Type of organizer role
+    range: string
+    required: true
+  
+  role_description:
+    slot_uri: schema:description
+    description: Additional description of the organizational role
+    range: string
+    required: false
+
+enums:
+  OrganizerRoleTypeEnum:
+    description: Types of organizer roles
+    permissible_values:
+      PRIMARY:
+        description: Main organizing institution
+      CO_ORGANIZER:
+        description: Partner institution with significant organizational role
+      SPONSOR_ORGANIZER:
+        description: Sponsor with curatorial/organizational input
+      LENDING_INSTITUTION:
+        description: Institution lending objects with exhibition involvement
+      HOST_VENUE:
+        description: Venue hosting a traveling exhibition
+      SUPPORTING_PARTNER:
+        description: Supporting partner institution
+      ADVISOR:
+        description: Advisory organization

schemas/20251121/linkml/modules/classes/PersonalCollectionType.yaml

@@ -12,7 +12,9 @@ description: 'Specialized CustodianType for individual private collectors and th
 imports:
   - linkml:types
   - ./CustodianType
-  - ../slots/collection_focus
+  # REMOVED 2026-01-19: ../slots/collection_focus - migrated to has_or_had_category + Category (Rule 53)
+  - ../slots/has_or_had_category
+  - ./Category
   # REMOVED 2026-01-19: ../slots/collection_size - migrated to has_or_had_quantity + Quantity (Rule 53)
   - ../slots/has_or_had_quantity
   - ./Quantity
@@ -183,7 +185,8 @@ classes:
     slots:
     - has_or_had_access_restriction
     - has_acquisition_history
-    - collection_focus
+    # REMOVED 2026-01-19: collection_focus - migrated to has_or_had_category + Category (Rule 53)
+    - has_or_had_category
     # REMOVED 2026-01-19: collection_size - migrated to has_or_had_quantity + Quantity (Rule 53)
     - has_or_had_quantity
     - has_or_had_custodian_type
@@ -193,16 +196,26 @@ classes:
     - specificity_annotation
     - has_or_had_score  # was: template_specificity - migrated per Rule 53 (2026-01-17)
     slot_usage:
-      collection_focus:
-        range: string
+      has_or_had_category:  # was: collection_focus - migrated per Rule 53 (2026-01-19)
+        description: |
+          MIGRATED from collection_focus per slot_fixes.yaml (Rule 53, 2026-01-19).
+          Subject areas and thematic focus of the personal collection using Category class.
+        range: Category
+        inlined: true
         multivalued: true
         required: true
         examples:
-        - value: Dutch Golden Age paintings, Rembrandt
+        - value:
+            category_name: Dutch Golden Age paintings
+            category_type: SUBJECT
           description: Art collector focus
-        - value: First editions, Modernist poetry, Fine press
-          description: Bibliophile focus
-        - value: Roman coins, Medieval numismatics
+        - value:
+            category_name: Rembrandt works
+            category_type: CREATOR
+          description: Artist-focused collection
+        - value:
+            category_name: Roman coins
+            category_type: TYPOLOGY
           description: Numismatist focus
       has_or_had_quantity:  # was: collection_size - migrated per Rule 53 (2026-01-19)
         description: |

schemas/20251121/linkml/modules/classes/PrimaryDigitalPresenceAssertion.yaml

@@ -7,7 +7,11 @@ imports:
   - ./TimeSpan
   - ../enums/DigitalPresenceTypeEnum
   - ../slots/supersedes_or_superseded  # was: supersede - migrated per Rule 53/56 (2026-01-17)
-  - ../slots/confidence_score
+  # REMOVED 2026-01-19: ../slots/confidence_score - migrated to is_or_was_generated_by + GenerationEvent + ConfidenceScore (Rule 53)
+  - ../slots/is_or_was_generated_by
+  - ./GenerationEvent
+  - ./ConfidenceScore
+  - ./ConfidenceMethod
   - ../slots/is_or_was_superseded_by  # was: superseded_by - migrated per Rule 53/56 (2026-01-16)
   - ../slots/is_or_was_about_digital_presence
   # REMOVED - migrated to is_or_was_asserted_by (Rule 53)
@@ -106,7 +110,8 @@ classes:
     - has_assertion_rationale
     - has_assertion_value
     - has_or_had_based_on_observation
-    - confidence_score
+    # REMOVED 2026-01-19: confidence_score - migrated to is_or_was_generated_by (Rule 53)
+    - is_or_was_generated_by
     - digital_presence_type
     - specificity_annotation
     - is_or_was_superseded_by  # was: superseded_by - migrated per Rule 53/56 (2026-01-16)
@@ -196,16 +201,25 @@ classes:
             asserter_contact: jane.doe@heritage-org.nl
           description: Human analyst asserter
       # was_asserted_by REMOVED - fully migrated to is_or_was_asserted_by (Rule 53, 2026-01-15)
-      confidence_score:
-        range: float
+      # REMOVED 2026-01-19: confidence_score - migrated to is_or_was_generated_by (Rule 53)
+      is_or_was_generated_by:
+        range: GenerationEvent
         required: false
-        minimum_value: 0.0
-        maximum_value: 1.0
+        inlined: true
+        description: >-
+          Generation event containing confidence score for this assertion.
+          MIGRATED 2026-01-19: Replaces confidence_score slot with structured pattern.
         examples:
-        - value: 0.95
-          description: High confidence - no website exists
-        - value: 0.65
-          description: Medium confidence - both active, unclear primary
+        - value:
+            has_or_had_score:
+              has_or_had_score: 0.95
+              has_or_had_method: "evidence_analysis"
+          description: High confidence - no website exists, Facebook only presence
+        - value:
+            has_or_had_score:
+              has_or_had_score: 0.65
+              has_or_had_method: "comparative_analysis"
+          description: Medium confidence - both presences active, unclear primary
       is_or_was_superseded_by:  # was: superseded_by - migrated per Rule 53/56 (2026-01-16)
         range: uriorcurie
         required: false
@@ -217,6 +231,7 @@ classes:
         examples:
         - value: https://nde.nl/ontology/hc/assertion/club-facebook-secondary-2020
     comments:
+    - 'MIGRATED 2026-01-19: confidence_score → is_or_was_generated_by + GenerationEvent + ConfidenceScore (Rule 53)'
     - Models primary presence status as temporal assertion, not static boolean
     - Based on CIDOC-CRM E13_Attribute_Assignment pattern
     - Supports change tracking via supersedes_or_superseded/is_or_was_superseded_by links

schemas/20251121/linkml/modules/classes/Provenance.yaml

@@ -19,7 +19,10 @@ imports:
   - linkml:types
   - ../slots/has_or_had_agent
   - ../slots/temporal_extent
-  - ../slots/confidence_score
+  # REMOVED 2026-01-19: ../slots/confidence_score - migrated to is_or_was_generated_by + ConfidenceScore
+  - ../slots/is_or_was_generated_by
+  - ./GenerationEvent
+  - ./ConfidenceScore
 
 default_range: string
 
@@ -56,7 +59,8 @@ classes:
     slots:
       - has_or_had_agent
       - temporal_extent
-      - confidence_score
+      # REMOVED 2026-01-19: confidence_score - migrated to is_or_was_generated_by + ConfidenceScore
+      - is_or_was_generated_by
     
     attributes:
       source_entity:
@@ -83,6 +87,20 @@ classes:
           Human-readable note about this provenance statement.
         slot_uri: prov:value
     
+    slot_usage:
+      is_or_was_generated_by:
+        range: GenerationEvent
+        inlined: true
+        description: >-
+          Generation event containing confidence scoring information.
+          MIGRATED 2026-01-19: Replaces confidence_score slot with structured GenerationEvent.
+        examples:
+          - value:
+              has_or_had_score:
+                has_or_had_score: 0.95
+                has_or_had_method: "xpath_extraction"
+            description: Generation event with confidence score
+    
     annotations:
       custodian_types: '["*"]'
       custodian_types_rationale: >-
@@ -97,10 +115,15 @@ classes:
           Provenance:
             extraction_method: "xpath_extraction"
             source_entity: "https://example.org/webpage/12345"
-            confidence_score: 0.95
+            is_or_was_generated_by:
+              has_or_had_score:
+                has_or_had_score: 0.95
+                has_or_had_method: "xpath_extraction"
+                has_or_had_description: "Exact match at expected XPath"
             note: "Extracted from archived HTML using XPath"
         description: >-
           Provenance for an XPath-extracted value from an archived webpage.
+          Uses new structured ConfidenceScore via GenerationEvent.
       
       - value: |
           Provenance:
@@ -108,6 +131,10 @@ classes:
               agent_type: "software"
               name: "glam-extractor-v2.1"
             extraction_method: "api_scraping"
-            confidence_score: 0.85
+            is_or_was_generated_by:
+              has_or_had_score:
+                has_or_had_score: 0.85
+                has_or_had_method: "api_response_validation"
         description: >-
           Provenance for API-scraped data with agent identification.
+          Confidence score captured in structured GenerationEvent.

schemas/20251121/linkml/modules/classes/ProvenanceBlock.yaml

@@ -22,7 +22,11 @@ imports:
   - ./DataTierSummary
   - ./EnrichmentProvenance
   - ./ProvenanceSources
-  - ../slots/confidence_score
+  # REMOVED 2026-01-19: ../slots/confidence_score - migrated to is_or_was_generated_by + GenerationEvent + ConfidenceScore (Rule 53)
+  - ../slots/is_or_was_generated_by
+  - ./GenerationEvent
+  - ./ConfidenceScore
+  - ./ConfidenceMethod
 default_range: string
 
 classes:
@@ -47,7 +51,29 @@ classes:
         - prov:Entity
         - prov:Activity
       slots:
-        - confidence_score
+        # REMOVED 2026-01-19: confidence_score - migrated to is_or_was_generated_by (Rule 53)
+        - is_or_was_generated_by
+      slot_usage:
+        is_or_was_generated_by:
+          range: GenerationEvent
+          required: false
+          inlined: true
+          description: >-
+            Generation event containing confidence score for the provenance block.
+            MIGRATED 2026-01-19: Replaces confidence_score slot with structured pattern.
+          examples:
+            - value:
+                has_or_had_score:
+                  has_or_had_score: 0.95
+                  has_or_had_method: "automated_extraction"
+              description: High confidence data extraction
+            - value:
+                has_or_had_score:
+                  has_or_had_score: 0.65
+                  has_or_had_method: "manual_review"
+              description: Medium confidence manual review
+      comments:
+        - "MIGRATED 2026-01-19: confidence_score → is_or_was_generated_by + GenerationEvent + ConfidenceScore (Rule 53)"
       attributes:
         schema_version:
           range: string

schemas/20251121/linkml/modules/classes/ReasoningContent.yaml

@@ -0,0 +1,163 @@
+# ReasoningContent - LLM reasoning content preservation class
+#
+# Created: 2026-01-19
+# Migration: clear_thinking → preserves_or_preserved + ReasoningContent class
+# Per slot_fixes.yaml, Rule 53/56
+#
+# Rule compliance: 0b (structured class), 37 (specificity), 50 (ontology mapping)
+
+id: https://nde.nl/ontology/hc/class/ReasoningContent
+name: reasoning_content_class
+title: Reasoning Content Class
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+  prov: http://www.w3.org/ns/prov#
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../slots/has_or_had_label
+  - ../slots/has_or_had_description
+  - ../slots/has_or_had_identifier
+
+classes:
+  ReasoningContent:
+    class_uri: prov:Entity
+    description: |
+      LLM reasoning content that is preserved across conversation turns.
+      
+      **DEFINITION**:
+      
+      ReasoningContent represents the chain-of-thought reasoning that LLMs like
+      GLM 4.7 expose through their thinking modes. This class captures the
+      reasoning_content that should be preserved when using "Preserved Thinking"
+      mode for multi-turn conversations.
+      
+      **GLM 4.7 Preserved Thinking** (https://docs.z.ai/guides/capabilities/thinking-mode):
+      
+      When `clear_thinking: false` (Preserved Thinking enabled):
+      - Reasoning content from previous turns is retained in context
+      - Improves model performance and increases cache hit rates
+      - Requires returning EXACT, UNMODIFIED reasoning_content back to API
+      
+      **Migration from clear_thinking**:
+      
+      This class replaces the boolean `clear_thinking` slot with a structured
+      representation of what is being preserved:
+      
+      | Old Pattern | New Pattern |
+      |-------------|-------------|
+      | `clear_thinking: false` | `preserves_or_preserved: ReasoningContent` with `is_preserved: true` |
+      | `clear_thinking: true` | `preserves_or_preserved: ReasoningContent` with `is_preserved: false` |
+      
+      **PROV-O Alignment**:
+      - ReasoningContent IS a prov:Entity (the reasoning output)
+      - Links to LLMResponse via preserves_or_preserved slot
+      - Enables tracking reasoning provenance across turns
+      
+      **Use Cases**:
+      - Multi-turn agent conversations with preserved context
+      - Debugging reasoning chain across API calls
+      - Auditing LLM decision-making process
+      - Optimizing cache hit rates
+    exact_mappings:
+      - prov:Entity
+    close_mappings:
+      - schema:Comment
+      - schema:Review
+    slots:
+      - has_or_had_label
+      - has_or_had_description
+      - has_or_had_identifier
+    attributes:
+      is_preserved:
+        range: boolean
+        required: true
+        description: |
+          Whether this reasoning content is preserved across turns.
+          
+          - **true**: Preserved Thinking enabled (keep reasoning, better cache hits)
+          - **false**: Clear previous reasoning (fresh context each turn)
+          
+          Maps to the inverse of the old `clear_thinking` boolean:
+          - `is_preserved: true` ≡ `clear_thinking: false`
+          - `is_preserved: false` ≡ `clear_thinking: true`
+      
+      content_text:
+        range: string
+        required: false
+        description: |
+          The actual reasoning content text (chain-of-thought).
+          Optional - may be omitted if only tracking preservation status.
+        examples:
+          - value: |
+              The user is asking about Dutch heritage institutions. I need to identify:
+              1) Institution name: Rijksmuseum
+              2) Type: Museum (maps to InstitutionTypeEnum.MUSEUM)
+              3) Location: Amsterdam (city in Noord-Holland province)...
+            description: GLM 4.7 reasoning trace
+      
+      turn_number:
+        range: integer
+        required: false
+        description: |
+          The conversation turn number this reasoning came from.
+          Useful for tracking reasoning provenance across multi-turn conversations.
+      
+      token_count:
+        range: integer
+        required: false
+        description: |
+          Number of tokens in the reasoning content.
+          Important for context window management.
+    
+    slot_usage:
+      has_or_had_label:
+        description: Human-readable label for this reasoning content.
+        examples:
+          - value: Turn 3 Reasoning
+            description: Reasoning from the third conversation turn
+      
+      has_or_had_description:
+        description: Description of the reasoning context or purpose.
+        examples:
+          - value: Chain-of-thought reasoning for heritage institution extraction
+            description: Purpose of the preserved reasoning
+      
+      has_or_had_identifier:
+        description: Unique identifier for this reasoning content block.
+        examples:
+          - value: reasoning-turn-3-20260119-143000
+            description: Timestamped reasoning block ID
+    
+    annotations:
+      specificity_score: 0.80
+      specificity_rationale: Highly specific to LLM API reasoning preservation domain
+      custodian_types: '["D"]'
+      custodian_types_rationale: Applies to Digital Platform custodians using LLM APIs
+    
+    examples:
+      - value:
+          is_preserved: true
+          has_or_had_label: Preserved Reasoning
+          content_text: |
+            The user is asking about Dutch heritage institutions...
+          turn_number: 3
+          token_count: 250
+        description: Preserved reasoning content from turn 3
+      
+      - value:
+          is_preserved: false
+          has_or_had_label: Cleared Context
+          has_or_had_description: Fresh context for new query topic
+        description: Cleared reasoning (fresh context)
+    
+    comments:
+      - Created from slot_fixes.yaml migration (2026-01-19)
+      - Replaces boolean clear_thinking with structured reasoning preservation
+      - Enables tracking what reasoning is preserved and why
+      - PROV-O Entity alignment for provenance tracking

schemas/20251121/linkml/modules/classes/RelatedType.yaml

@@ -0,0 +1,33 @@
+id: https://nde.nl/ontology/hc/class/RelatedType
+name: RelatedType-class
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  skos: http://www.w3.org/2004/02/skos/core#
+  schema: http://schema.org/
+  dcterms: http://purl.org/dc/terms/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../slots/related_type_name
+  - ../slots/related_type_wikidata
+  - ../slots/related_type_relationship
+  - ../slots/related_type_note
+
+classes:
+  RelatedType:
+    class_uri: hc:RelatedType
+    description: |
+      A reference to a related class in the heritage ontology.
+      Used for documenting relationships between types.
+    slots:
+      - related_type_name
+      - related_type_wikidata
+      - related_type_relationship
+      - related_type_note
+    annotations:
+      specificity_score: 0.3
+      specificity_rationale: "Universal utility for type relationships"

schemas/20251121/linkml/modules/classes/RoomUnit.yaml

@@ -78,20 +78,10 @@ classes:
         Room counting most relevant for education providers (E), libraries (L),
         archives (A), museums (M), and research centers (R).
       custodian_types_primary: "E"
-      specificity_score: 0.45
+      specificity_score: "0.45"
       specificity_rationale: >-
         Moderately specific - room counting common in education/facility contexts.
-      template_specificity:
-        archive_search: 0.35
-        museum_search: 0.45
-        library_search: 0.50
-        collection_discovery: 0.20
-        person_research: 0.10
-        location_browse: 0.55
-        identifier_lookup: 0.10
-        organizational_change: 0.20
-        digital_platform: 0.10
-        general_heritage: 0.45
+      template_specificity: '{"archive_search": 0.35, "museum_search": 0.45, "library_search": 0.50, "collection_discovery": 0.20, "person_research": 0.10, "location_browse": 0.55, "identifier_lookup": 0.10, "organizational_change": 0.20, "digital_platform": 0.10, "general_heritage": 0.45}'
     
     examples:
       - value:

schemas/20251121/linkml/modules/classes/StorageCondition.yaml

@@ -18,7 +18,11 @@ imports:
   - ../enums/StorageConditionStatusEnum
   - ../enums/StorageObserverTypeEnum
   - ../slots/supersede_condition  # was: supersede - migrated to class-specific slot 2026-01-16
-  - ../slots/confidence_score
+  # REMOVED 2026-01-19: ../slots/confidence_score - migrated to is_or_was_generated_by + GenerationEvent + ConfidenceScore (Rule 53)
+  - ../slots/is_or_was_generated_by
+  - ./GenerationEvent
+  - ./ConfidenceScore
+  - ./ConfidenceMethod
   - ../slots/observation_date
   - ../slots/follow_up_date
   - ../slots/has_assessment_category
@@ -92,7 +96,8 @@ classes:
     - has_or_had_category_assessment
     - compliance_status
     - has_or_had_identifier  # was: condition_id - migrated per Rule 53 (2026-01-18)
-    - confidence_score
+    # REMOVED 2026-01-19: confidence_score - migrated to is_or_was_generated_by (Rule 53)
+    - is_or_was_generated_by
     - evidence_documentation
     - follow_up_date
     - is_official_assessment
@@ -226,19 +231,30 @@ classes:
         examples:
         - value: '2024-12-01'
           description: Post-treatment verification inspection
-      confidence_score:
-        range: float
-        minimum_value: 0.0
-        maximum_value: 1.0
+      # REMOVED 2026-01-19: confidence_score - migrated to is_or_was_generated_by (Rule 53)
+      is_or_was_generated_by:
+        range: GenerationEvent
+        required: false
+        inlined: true
+        description: >-
+          Generation event containing confidence score for this observation.
+          MIGRATED 2026-01-19: Replaces confidence_score slot with structured pattern.
         examples:
-        - value: 0.95
-          description: Government inspector with full access
-        - value: 0.75
-          description: Journalist with limited access
+        - value:
+            has_or_had_score:
+              has_or_had_score: 0.95
+              has_or_had_method: "government_inspection"
+          description: High confidence - Government inspector with full access
+        - value:
+            has_or_had_score:
+              has_or_had_score: 0.75
+              has_or_had_method: "journalist_investigation"
+          description: Medium confidence - Journalist with limited access
       # supersede migrated to supersede_condition
       # This domain-specific slot has explicit StorageCondition range
       # to avoid OWL type ambiguity (DatatypeProperty vs ObjectProperty conflict)
     comments:
+    - 'MIGRATED 2026-01-19: confidence_score → is_or_was_generated_by + GenerationEvent + ConfidenceScore (Rule 53)'
     - Observations are NOT assertions of truth - they are reports from specific observers
     - Multiple observations may exist for same storage with conflicting findings
     - Gap between observed conditions and policy conditions is critical transparency metric
@@ -272,7 +288,10 @@ classes:
         evidence_documentation:
         - https://www.volkskrant.nl/archive-pest-crisis-2024
         remediation_required: true
-        confidence_score: 0.85
+        is_or_was_generated_by:  # was: confidence_score - migrated per Rule 53 (2026-01-19)
+          has_or_had_score:
+            has_or_had_score: 0.85
+            has_or_had_method: "journalist_investigation"
       description: Journalist investigation discovering unreported pest infestation
     - value:
         has_or_had_identifier:  # was: condition_id - migrated per Rule 53 (2026-01-18)
@@ -305,7 +324,10 @@ classes:
         observation_notes: Quarterly facilities review. All parameters within policy ranges.
         compliance_status: COMPLIANT
         remediation_required: false
-        confidence_score: 0.9
+        is_or_was_generated_by:  # was: confidence_score - migrated per Rule 53 (2026-01-19)
+          has_or_had_score:
+            has_or_had_score: 0.9
+            has_or_had_method: "internal_assessment"
       description: Official quarterly internal assessment
   StorageConditionCategoryAssessment:
     class_uri: hc:StorageConditionCategoryAssessment

schemas/20251121/linkml/modules/classes/Version.yaml

@@ -0,0 +1,168 @@
+id: https://nde.nl/ontology/hc/class/Version
+name: version_class
+title: Version Class
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+  prov: http://www.w3.org/ns/prov#
+  doap: http://usefulinc.com/ns/doap#
+imports:
+  - linkml:types
+  - ../slots/has_or_had_label
+  - ../slots/has_or_had_identifier
+  - ../slots/temporal_extent
+  - ./TimeSpan
+default_prefix: hc
+classes:
+  Version:
+    class_uri: schema:SoftwareApplication
+    description: |
+      A version identifier for software, documents, schemas, or other entities.
+      
+      **Purpose**: Represents a structured version record with version number,
+      release date, and semantic versioning components.
+      
+      **Semantic Versioning Support**:
+      - major_version: Breaking changes
+      - minor_version: New features (backwards compatible)
+      - patch_version: Bug fixes
+      
+      **Use Cases**:
+      1. **CMS Product Version**: Version of deployed CMS software
+      2. **API Version**: REST API version
+      3. **Schema Version**: Ontology/schema version
+      4. **Document Version**: Document revision number
+      
+      **Example**:
+      ```yaml
+      CollectionManagementSystem:
+        cms_name: CollectiveAccess
+        has_or_had_version:
+          version_string: "1.8.0"
+          major_version: 1
+          minor_version: 8
+          patch_version: 0
+          release_date: "2023-06-15"
+      ```
+      
+      **Migration Note**: Created 2026-01-19 per slot_fixes.yaml (Rule 53).
+      Replaces simple string cms_product_version with structured Version class.
+    exact_mappings:
+      - schema:version
+      - doap:Version
+    slots:
+      - version_string
+      - major_version
+      - minor_version
+      - patch_version
+      - prerelease_tag
+      - build_metadata
+      - release_date
+      - temporal_extent
+    slot_usage:
+      version_string:
+        description: Full version string (e.g., "1.8.0", "v3.2.1-beta")
+        range: string
+        required: true
+        examples:
+          - value: "1.8.0"
+            description: Semantic version
+          - value: "7.4"
+            description: Two-part version
+          - value: "v3.2.1-beta"
+            description: Version with prerelease tag
+      major_version:
+        description: Major version number (breaking changes)
+        range: integer
+        required: false
+        examples:
+          - value: 1
+            description: Major version 1
+      minor_version:
+        description: Minor version number (new features)
+        range: integer
+        required: false
+        examples:
+          - value: 8
+            description: Minor version 8
+      patch_version:
+        description: Patch version number (bug fixes)
+        range: integer
+        required: false
+        examples:
+          - value: 0
+            description: Patch version 0
+      prerelease_tag:
+        description: Prerelease identifier (e.g., "alpha", "beta", "rc1")
+        range: string
+        required: false
+        examples:
+          - value: beta
+            description: Beta prerelease
+          - value: rc1
+            description: Release candidate 1
+      build_metadata:
+        description: Build metadata (e.g., git commit hash)
+        range: string
+        required: false
+        examples:
+          - value: "20230615.abc123"
+            description: Build date and commit hash
+      release_date:
+        description: Date this version was released
+        range: date
+        required: false
+        examples:
+          - value: "2023-06-15"
+            description: Release date
+      temporal_extent:
+        description: Validity period for this version (when deployed)
+        range: TimeSpan
+        required: false
+        examples:
+          - value:
+              begin_of_the_begin: "2023-06-15"
+              end_of_the_end: null
+            description: Version deployed since June 2023
+    annotations:
+      custodian_types: '["D"]'
+      custodian_types_rationale: Primarily used by digital platforms (D) for software versioning
+      specificity_score: 0.55
+      specificity_rationale: Moderately specific to software/document version contexts
+
+slots:
+  version_string:
+    slot_uri: schema:version
+    description: Full version string
+    range: string
+    exact_mappings:
+      - schema:version
+
+  major_version:
+    slot_uri: doap:revision
+    description: Major version number
+    range: integer
+
+  minor_version:
+    description: Minor version number
+    range: integer
+
+  patch_version:
+    description: Patch version number
+    range: integer
+
+  prerelease_tag:
+    description: Prerelease identifier
+    range: string
+
+  build_metadata:
+    description: Build metadata
+    range: string
+
+  release_date:
+    slot_uri: schema:datePublished
+    description: Release date
+    range: date
+    exact_mappings:
+      - schema:datePublished

schemas/20251121/linkml/modules/classes/VideoTimeSegment.yaml

@@ -3,7 +3,6 @@ name: video_time_segment_class
 title: Video Time Segment Class
 imports:
   - linkml:types
-  - ../slots/confidence
   - ../slots/end_seconds
   - ../slots/end_time
   - ../slots/segment_index
@@ -16,32 +15,12 @@ imports:
   - ../slots/has_or_had_score  # was: template_specificity - migrated per Rule 53 (2026-01-17)
   - ./SpecificityAnnotation
   - ./TemplateSpecificityScore  # was: TemplateSpecificityScores - migrated per Rule 53 (2026-01-17)
-
   - ./TemplateSpecificityType
-
   - ./TemplateSpecificityTypes
-  - ../slots/confidence
-  - ../slots/end_seconds
-  - ../slots/end_time
-  - ../slots/segment_index
-  - ../slots/segment_text
-  - ../slots/speaker_id
-  - ../slots/speaker_label
-  - ../slots/specificity_annotation
-  - ../slots/start_seconds
-  - ../slots/start_time
-  - ../slots/has_or_had_score  # was: template_specificity - migrated per Rule 53 (2026-01-17)
-  - ../slots/confidence
-  - ../slots/end_seconds
-  - ../slots/end_time
-  - ../slots/segment_index
-  - ../slots/segment_text
-  - ../slots/speaker_id
-  - ../slots/speaker_label
-  - ../slots/specificity_annotation
-  - ../slots/start_seconds
-  - ../slots/start_time
-  - ../slots/has_or_had_score  # was: template_specificity - migrated per Rule 53 (2026-01-17)
+  # MIGRATED 2026-01-19: confidence → is_or_was_generated_by + GenerationEvent + ConfidenceScore
+  - ../slots/is_or_was_generated_by
+  - ./GenerationEvent
+  - ./ConfidenceScore
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
@@ -170,7 +149,6 @@ classes:
     related_mappings:
     - schema:Clip
     slots:
-    - confidence
     - end_seconds
     - end_time
     - segment_index
@@ -181,6 +159,7 @@ classes:
     - start_seconds
     - start_time
     - has_or_had_score  # was: template_specificity - migrated per Rule 53 (2026-01-17)
+    - is_or_was_generated_by  # MIGRATED 2026-01-19: replaces confidence slot
     slot_usage:
       start_time:
         range: string
@@ -231,15 +210,23 @@ classes:
           description: First segment
         - value: 42
           description: 43rd segment (zero-indexed)
-      confidence:
-        range: float
+      is_or_was_generated_by:
+        range: GenerationEvent
         required: false
-        minimum_value: 0.0
-        maximum_value: 1.0
+        inlined: true
+        description: >-
+          Generation event containing confidence score for ASR/CV segment accuracy.
+          MIGRATED 2026-01-19: Replaces confidence slot with structured pattern.
         examples:
-        - value: 0.95
+        - value:
+            has_or_had_score:
+              has_or_had_score: 0.95
+              has_or_had_method: asr_transcription
           description: High confidence ASR segment
-        - value: 0.72
+        - value:
+            has_or_had_score:
+              has_or_had_score: 0.72
+              has_or_had_method: cv_detection
           description: Medium confidence, may contain errors
       speaker_id:
         range: string
@@ -266,6 +253,7 @@ classes:
     - Aligns with W3C Media Fragments URI specification
     - Confidence scoring for AI-generated content
     - Speaker diarization support for multi-speaker transcripts
+    - 'MIGRATED 2026-01-19: confidence → is_or_was_generated_by + ConfidenceScore'
     see_also:
     - https://www.w3.org/TR/media-frags/
     - https://www.w3.org/TR/annotation-model/

schemas/20251121/linkml/modules/classes/Warehouse.yaml

@@ -7,7 +7,13 @@ imports:
   - ./CustodianObservation
   - ./ReconstructionActivity
   - ../slots/has_or_had_access_restriction
-  - ../slots/climate_control_type
+  # climate_control_type migrated to has_or_had_policy + ClimateControlPolicy (Rule 53, 2026-01-19)
+  - ../slots/has_or_had_policy
+  - ./ClimateControlPolicy
+  - ./ClimateControl
+  - ./ClimateControlType
+  - ./ClimateControlTypes
+  - ../slots/regulates_or_regulated
   - ../slots/contents_description
   - ../slots/has_climate_control
   - ../slots/has_forklift_access
@@ -87,7 +93,7 @@ classes:
     - schema:LocalBusiness
     slots:
     - has_or_had_access_restriction
-    - climate_control_type
+    - has_or_had_policy  # was: climate_control_type - migrated per Rule 53 (2026-01-19)
     - contents_description
     - has_climate_control
     - has_forklift_access
@@ -183,13 +189,29 @@ classes:
           description: Basic climate control
         - value: false
           description: Uncontrolled
-      climate_control_type:
-        range: string
+      has_or_had_policy:  # was: climate_control_type - migrated per Rule 53 (2026-01-19)
+        range: ClimateControlPolicy
+        description: |
+          Climate control policy governing this warehouse.
+          MIGRATED from climate_control_type per slot_fixes.yaml (Rule 53).
+          
+          **MIGRATION NOTE**:
+          Old simple string values (HEATED, HVAC, etc.) now modeled as:
+          ClimateControlPolicy → regulates_or_regulated → ClimateControl → has_or_had_type → ClimateControlType
+        inlined: true
         examples:
-        - value: HEATED
-          description: Heating only
-        - value: HVAC
-          description: Full HVAC
+        - value:
+            has_or_had_label: "Warehouse Basic Climate Requirements"
+            regulates_or_regulated:
+              - has_or_had_label: "Warehouse Heating"
+                has_or_had_type: HEATED
+          description: Heating only policy
+        - value:
+            has_or_had_label: "Full HVAC Requirements"
+            regulates_or_regulated:
+              - has_or_had_label: "Central HVAC System"
+                has_or_had_type: HVAC
+          description: Full HVAC policy
       has_or_had_security_level:  # was: warehouse_security_level
         description: |
           Security level of this warehouse.
@@ -234,6 +256,7 @@ classes:
     - 'CRITICAL: Distinguished from Storage class (which is for collection materials)'
     - Warehouse = non-collection items (equipment, supplies, furniture)
     - Storage = collection materials (climate-controlled, high security)
+    - 'MIGRATION (2026-01-19): climate_control_type → has_or_had_policy + ClimateControlPolicy per Rule 53'
     see_also:
     - http://vocab.getty.edu/aat/300007775
     - https://schema.org/Warehouse
@@ -255,7 +278,11 @@ classes:
         has_loading_dock: true
         has_forklift_access: true
         has_climate_control: true
-        climate_control_type: HEATED
+        has_or_had_policy:  # was: climate_control_type - migrated per Rule 53 (2026-01-19)
+          has_or_had_label: "Warehouse Basic Climate Requirements"
+          regulates_or_regulated:
+            - has_or_had_label: "Logistics Warehouse Heating"
+              has_or_had_type: HEATED
         has_or_had_security_level:  # was: warehouse_security_level
           has_or_had_code: "STANDARD"
           level_name: "Standard Security"
@@ -279,6 +306,7 @@ classes:
         has_loading_dock: true
         has_forklift_access: false
         has_climate_control: false
+        # No has_or_had_policy - warehouse has no climate control
         has_or_had_security_level:  # was: warehouse_security_level
           has_or_had_code: "BASIC"
           level_name: "Basic Security"

schemas/20251121/linkml/modules/slots/administrative_context.yaml

@@ -0,0 +1,23 @@
+id: https://nde.nl/ontology/hc/slot/administrative_context
+name: administrative_context-slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+
+slots:
+  administrative_context:
+    slot_uri: hc:administrativeContext
+    description: |
+      Administrative and governmental context.
+      Documents how this type relates to government structures and public administration.
+      
+      **Migrated from**: `**Administrative Context**:` sections.
+    range: string
+    annotations:
+      source_section: "**Administrative Context**:"

schemas/20251121/linkml/modules/slots/characteristics.yaml

@@ -0,0 +1,26 @@
+id: https://nde.nl/ontology/hc/slot/characteristics
+name: characteristics-slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  dcterms: http://purl.org/dc/terms/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+
+slots:
+  characteristics:
+    slot_uri: dcterms:description
+    description: |
+      Key characteristics and features of this class.
+      Documents defining traits and capabilities.
+      
+      **Migrated from**: `**Characteristics**:` and `**CHARACTERISTICS**:` sections.
+    range: string
+    multivalued: true
+    inlined_as_list: true
+    annotations:
+      source_section: "**Characteristics**:"

schemas/20251121/linkml/modules/slots/class_definition.yaml

@@ -0,0 +1,24 @@
+id: https://nde.nl/ontology/hc/slot/class_definition
+name: class_definition-slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  skos: http://www.w3.org/2004/02/skos/core#
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+
+slots:
+  class_definition:
+    slot_uri: skos:definition
+    description: |
+      Formal definition of this class.
+      Used primarily for RecordSetType classes.
+      
+      **Migrated from**: `**Definition**:` and `**DEFINITION**:` sections.
+    range: string
+    annotations:
+      source_section: "**Definition**:"

schemas/20251121/linkml/modules/slots/dutch_context.yaml

@@ -0,0 +1,23 @@
+id: https://nde.nl/ontology/hc/slot/dutch_context
+name: dutch_context-slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+
+slots:
+  dutch_context:
+    slot_uri: hc:dutchContext
+    description: |
+      Netherlands-specific context and terminology.
+      Documents Dutch heritage sector conventions, terminology, and institutional context.
+      
+      **Migrated from**: `**Dutch Context**:` sections.
+    range: string
+    annotations:
+      source_section: "**Dutch Context**:"

schemas/20251121/linkml/modules/slots/example_location.yaml

@@ -0,0 +1,18 @@
+id: https://nde.nl/ontology/hc/slot/example_location
+name: example_location-slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+
+slots:
+  example_location:
+    slot_uri: schema:location
+    description: Location of the example institution (city, country)
+    range: string

schemas/20251121/linkml/modules/slots/example_name.yaml

@@ -0,0 +1,19 @@
+id: https://nde.nl/ontology/hc/slot/example_name
+name: example_name-slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+
+slots:
+  example_name:
+    slot_uri: schema:name
+    description: Name of the example institution
+    range: string
+    required: true

schemas/20251121/linkml/modules/slots/example_note.yaml

@@ -0,0 +1,18 @@
+id: https://nde.nl/ontology/hc/slot/example_note
+name: example_note-slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  skos: http://www.w3.org/2004/02/skos/core#
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+
+slots:
+  example_note:
+    slot_uri: skos:note
+    description: Additional note about the example
+    range: string

schemas/20251121/linkml/modules/slots/example_wikidata_id.yaml

@@ -0,0 +1,18 @@
+id: https://nde.nl/ontology/hc/slot/example_wikidata_id
+name: example_wikidata_id-slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+
+slots:
+  example_wikidata_id:
+    slot_uri: hc:wikidataId
+    description: Wikidata Q-number for the example institution
+    range: string
+    pattern: "^Q[0-9]+$"

schemas/20251121/linkml/modules/slots/has_or_had_category.yaml

@@ -0,0 +1,52 @@
+id: https://nde.nl/ontology/hc/slot/has_or_had_category
+name: has_or_had_category_slot
+title: Has or Had Category Slot
+# Created per slot_fixes.yaml revision for collection_focus migration
+# RULE 53: Generic category relationship pattern
+# RULE 39: RiC-O temporal naming convention
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  skos: http://www.w3.org/2004/02/skos/core#
+  dcterms: http://purl.org/dc/terms/
+  schema: http://schema.org/
+
+imports:
+  - linkml:types
+
+default_prefix: hc
+
+slots:
+  has_or_had_category:
+    description: >-
+      Links an entity to its category or classification.
+      
+      Categories represent hierarchical or faceted classifications:
+      - Subject categories (art, science, history)
+      - Thematic categories (Dutch Golden Age, WWII, Islamic art)
+      - Material categories (paintings, manuscripts, specimens)
+      - Geographic categories (European, Asian, African)
+      - Temporal categories (Medieval, Renaissance, Contemporary)
+      
+      The Category class enables structured categorization with:
+      - Category name and description
+      - Category type (subject, theme, material, geographic, temporal)
+      - Hierarchical relationships (broader/narrower terms)
+      - Provenance tracking
+    range: Category
+    slot_uri: dcterms:subject
+    multivalued: true
+    inlined: true
+    inlined_as_list: true
+    exact_mappings:
+      - dcterms:subject
+      - skos:Concept
+    close_mappings:
+      - schema:about
+      - schema:category
+    related_mappings:
+      - skos:broader
+      - skos:narrower
+    annotations:
+      rule_53_migration: "Replaces collection_focus with structured Category"

schemas/20251121/linkml/modules/slots/has_or_had_organizer.yaml

@@ -0,0 +1,89 @@
+# has_or_had_organizer slot
+# Generic slot for entities that organize events, exhibitions, programs, etc.
+#
+# Following RiC-O naming convention (Rule 39): "hasOrHad..." pattern
+# for temporal relationships in heritage domain.
+#
+# Generation date: 2026-01-19
+# Rule compliance: 38 (slot centralization + semantic URI), 39 (RiC-O naming), 42 (no prefix), 53 (slot_fixes.yaml)
+
+id: https://nde.nl/ontology/hc/slot/has_or_had_organizer
+name: has_or_had_organizer_slot
+title: Has Or Had Organizer Slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  owl: http://www.w3.org/2002/07/owl#
+  schema: http://schema.org/
+  prov: http://www.w3.org/ns/prov#
+  org: http://www.w3.org/ns/org#
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+
+slots:
+  has_or_had_organizer:
+    slot_uri: schema:organizer
+    description: |
+      Entity that organizes or organized an event, exhibition, program, or activity.
+      
+      **Temporal Semantics** (RiC-O Pattern):
+      The "hasOrHad" naming follows RiC-O convention indicating this relationship
+      may be historical - an event's organizers change over time or the event is completed.
+      
+      **Ontological Alignment**:
+      - **Primary** (`slot_uri`): `schema:organizer` - Schema.org organizer
+      - **Close**: `schema:contributor` - contributor to event
+      - **Related**: `prov:wasAssociatedWith` - PROV-O association
+      
+      **Usage**:
+      - Primary organizer: main institution organizing an exhibition
+      - Co-organizer: partner institutions with organizational role
+      - Sponsor-organizer: sponsors with curatorial/organizational input
+      
+      **Pattern**:
+      Uses Organizer class to capture both the organizing entity and their role.
+      This replaces simple uriorcurie references to allow role discrimination.
+      
+      **Range**: `uriorcurie` (Rule 55) - broadened for flexibility.
+      Classes narrow via slot_usage to Organizer class.
+      
+    range: uriorcurie
+    implements:
+      - owl:ObjectProperty  # Force OWL ObjectProperty to avoid ambiguous type warning
+    required: false
+    multivalued: true
+    
+    exact_mappings:
+      - schema:organizer
+    
+    close_mappings:
+      - schema:contributor
+    
+    related_mappings:
+      - prov:wasAssociatedWith
+      - org:hasMember
+    
+    annotations:
+      rico_naming_convention: |
+        Follows RiC-O "hasOrHad" pattern for temporal predicates.
+        See Rule 39: Slot Naming Convention (RiC-O Style)
+      replaces_slots: >-
+        co_organized_by, organized_by (partial - role discrimination)
+      migration_date: "2026-01-19"
+    
+    comments:
+      - "Generic organizer slot for events, exhibitions, programs"
+      - "Maps to schema:organizer as primary URI"
+      - "Range: uriorcurie (Rule 55) - allows Organizer class via slot_usage"
+      - "RiC-O naming: hasOrHad indicates potentially historical relationship"
+      - "RULE 53: Created per slot_fixes.yaml revision for co_organized_by"
+    
+    examples:
+      - value: "https://nde.nl/ontology/hc/organizer/rijksmuseum-vermeer-2023"
+        description: "Rijksmuseum as primary organizer of Vermeer exhibition"
+      - value: "https://nde.nl/ontology/hc/organizer/mauritshuis-vermeer-2023"
+        description: "Mauritshuis as co-organizer of Vermeer exhibition"

schemas/20251121/linkml/modules/slots/heritage_sector_usage.yaml

@@ -0,0 +1,23 @@
+id: https://nde.nl/ontology/hc/slot/heritage_sector_usage
+name: heritage_sector_usage-slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+
+slots:
+  heritage_sector_usage:
+    slot_uri: hc:heritageSectorUsage
+    description: |
+      How this class/technology is used in the heritage sector.
+      Documents adoption patterns, best practices, and sector conventions.
+      
+      **Migrated from**: `**Heritage Sector Usage**:` and `**Heritage use cases**:` sections.
+    range: string
+    annotations:
+      source_section: "**Heritage Sector Usage**:"

schemas/20251121/linkml/modules/slots/historical_significance.yaml

@@ -0,0 +1,23 @@
+id: https://nde.nl/ontology/hc/slot/historical_significance
+name: historical_significance-slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+
+slots:
+  historical_significance:
+    slot_uri: hc:historicalSignificance
+    description: |
+      Historical importance and context of this type of institution.
+      Documents the heritage value and historical role.
+      
+      **Migrated from**: `**Historical Significance**:` sections.
+    range: string
+    annotations:
+      source_section: "**Historical Significance**:"

schemas/20251121/linkml/modules/slots/is_or_was_based_on.yaml

@@ -0,0 +1,61 @@
+id: https://nde.nl/ontology/hc/slot/is_or_was_based_on
+name: is_or_was_based_on_slot
+title: Is Or Was Based On Slot
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  prov: http://www.w3.org/ns/prov#
+  schema: http://schema.org/
+  rico: https://www.ica.org/standards/RiC/ontology#
+imports:
+  - linkml:types
+default_prefix: hc
+slots:
+  is_or_was_based_on:
+    slot_uri: prov:wasDerivedFrom
+    description: |
+      Entity or resource this item is or was based on (temporal relationship).
+      
+      **Semantic Pattern**: RiC-O temporal naming convention (Rule 39)
+      - "is_or_was" indicates the relationship may be current or historical
+      - Supports temporal modeling where dependencies change over time
+      
+      **PROV-O Alignment**:
+      prov:wasDerivedFrom - "A derivation is a transformation of an entity into another"
+      
+      **Use Cases**:
+      1. **CMS Detection**: Platform is_or_was_based_on a detected CMS
+      2. **Software Dependencies**: Application based on framework/library
+      3. **Content Derivation**: Document based on template/source
+      4. **Infrastructure**: Service based on platform/technology
+      
+      **Temporal Semantics**:
+      - Current: "This platform IS based on WordPress 6.4"
+      - Historical: "This platform WAS based on Drupal 7 (now migrated)"
+      - Use temporal_extent for precise validity periods
+      
+      **Examples**:
+      ```yaml
+      AuxiliaryDigitalPlatform:
+        platform_name: Museum Blog
+        is_or_was_based_on:
+          cms_name: WordPress
+          cms_version: "6.4"
+          detected_at: "2026-01-19T12:00:00Z"
+      ```
+      
+      **Migration Note**: Created 2026-01-19 per slot_fixes.yaml (Rule 53).
+      Replaces boolean cms_detected with structured CMS reference.
+    range: string
+    multivalued: true
+    inlined_as_list: true
+    exact_mappings:
+      - prov:wasDerivedFrom
+    close_mappings:
+      - schema:isBasedOn
+      - rico:isOrWasBasedOn
+    annotations:
+      custodian_types: '["*"]'
+      custodian_types_rationale: Universal relationship for any entity based on another
+      specificity_score: 0.25
+      specificity_rationale: Broadly applicable derivation/dependency relationship

schemas/20251121/linkml/modules/slots/key_distinction.yaml

@@ -0,0 +1,24 @@
+id: https://nde.nl/ontology/hc/slot/key_distinction
+name: key_distinction-slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  skos: http://www.w3.org/2004/02/skos/core#
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+
+slots:
+  key_distinction:
+    slot_uri: skos:note
+    description: |
+      The primary distinguishing characteristic of this class.
+      What sets it apart from similar or related types.
+      
+      **Migrated from**: `**Key Distinction**:` and `**Key Distinctions from Other Types**:` sections.
+    range: string
+    annotations:
+      source_section: "**Key Distinction**:"

schemas/20251121/linkml/modules/slots/manifest.json

@@ -76,20 +76,10 @@
         "claim_value.yaml",
         "based_on_claim.yaml",
         "classifies_or_classified.yaml",
-        "clear_thinking.yaml",
-        "climate_control_type.yaml",
         "closed_space_id.yaml",
-        "cms_category.yaml",
-        "cms_detected.yaml",
         "cms_id.yaml",
         "cms_product_name.yaml",
-        "cms_product_version.yaml",
-        "co_funding_required.yaml",
-        "co_organized_by.yaml",
-        "collection_access.yaml",
-        "collection_date.yaml",
         "collection_description.yaml",
-        "collection_discovery_score.yaml",
         "collection_focus.yaml",
         "collection_id.yaml",
         "collection_locality_text.yaml",
@@ -862,6 +852,7 @@
         "has_or_had_operate.yaml",
         "has_or_had_operates_platform_type.yaml",
         "has_or_had_operates_storage_type.yaml",
+        "has_or_had_organizer.yaml",
         "has_or_had_organizational_change_event.yaml",
         "has_or_had_organizational_structure.yaml",
         "has_or_had_owner.yaml",
@@ -1114,6 +1105,7 @@
         "is_or_was_asserted_by.yaml",
         "is_or_was_associated_with.yaml",
         "is_or_was_available.yaml",
+        "is_or_was_based_on.yaml",
         "is_or_was_categorized_as.yaml",
         "is_or_was_collection_of.yaml",
         "is_or_was_created_through.yaml",
@@ -1409,6 +1401,7 @@
         "oclc_number.yaml",
         "offered_by.yaml",
         "offers_donation_scheme.yaml",
+        "offers_or_offered_access.yaml",
         "official_institution_subtype.yaml",
         "online_shop.yaml",
         "open_source.yaml",
@@ -1585,6 +1578,7 @@
         "preservation_requirement.yaml",
         "preservation_standard.yaml",
         "preservative_detail.yaml",
+        "preserves_or_preserved.yaml",
         "previous_observation.yaml",
         "price.yaml",
         "price_currency.yaml",
@@ -1691,6 +1685,7 @@
         "registration_date.yaml",
         "registration_required.yaml",
         "regulated_by_scheme.yaml",
+        "regulates_or_regulated.yaml",
         "regulatory_authority.yaml",
         "related.yaml",
         "related_agenda.yaml",
@@ -1929,11 +1924,15 @@
         "takes_or_took_place_at.yaml",
         "temperature_target.yaml",
         "template_specificity.yaml",
+        "temporal_dynamics.yaml",
         "temporal_extent.yaml",
         "total_amount.yaml",
         "track_id.yaml",
+        "typical_contents.yaml",
+        "use_cases.yaml",
         "uses_or_used_technique.yaml",
         "was_archived_at.yaml",
+        "was_acquired_through.yaml",
         "was_derived_from.yaml",
         "was_generated_by.yaml",
         "was_last_updated_at.yaml",

schemas/20251121/linkml/modules/slots/notable_examples.yaml

@@ -0,0 +1,29 @@
+id: https://nde.nl/ontology/hc/slot/notable_examples
+name: notable_examples-slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  skos: http://www.w3.org/2004/02/skos/core#
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../classes/NotableExample
+
+slots:
+  notable_examples:
+    slot_uri: skos:example
+    description: |
+      Real-world examples of institutions of this type.
+      Provides concrete instances for understanding the class.
+      
+      **Migrated from**: `**Notable Examples**:` sections.
+      
+      **Format**: List of NotableExample objects with name, location, and optional Wikidata ID.
+    range: NotableExample
+    multivalued: true
+    inlined_as_list: true
+    annotations:
+      source_section: "**Notable Examples**:"

schemas/20251121/linkml/modules/slots/offers_or_offered_access.yaml

@@ -0,0 +1,88 @@
+# offers_or_offered_access slot
+# Generic slot for access offerings by heritage institutions
+#
+# Following RiC-O naming convention (Rule 39): "offersOrOffered..." pattern
+# for temporal relationships in heritage domain.
+#
+# Generation date: 2026-01-19
+# Rule compliance: 38 (slot centralization + semantic URI), 39 (RiC-O naming), 42 (no prefix), 53 (slot_fixes.yaml)
+
+id: https://nde.nl/ontology/hc/slot/offers_or_offered_access
+name: offers_or_offered_access_slot
+title: Offers Or Offered Access Slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  owl: http://www.w3.org/2002/07/owl#
+  schema: http://schema.org/
+  dcterms: http://purl.org/dc/terms/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+
+slots:
+  offers_or_offered_access:
+    slot_uri: schema:publicAccess
+    description: |
+      Access offerings provided by a heritage institution or collection.
+      
+      **Temporal Semantics** (RiC-O Pattern):
+      The "offersOrOffered" naming follows RiC-O convention indicating this relationship
+      may be historical - access conditions change over time.
+      
+      **Ontological Alignment**:
+      - **Primary** (`slot_uri`): `schema:publicAccess` - Schema.org public access flag
+      - **Close**: `dcterms:accessRights` - Dublin Core access rights
+      - **Related**: `schema:isAccessibleForFree` - accessibility information
+      
+      **Usage**:
+      - Collection access: Policies for accessing heritage collections
+      - Research access: Conditions for scholarly research use
+      - Public access: General public visiting policies
+      - Digital access: Online collection availability
+      
+      **Pattern**:
+      Uses Access class to capture structured access information including
+      access types, conditions, restrictions, and temporal applicability.
+      
+      **Range**: `uriorcurie` (Rule 55) - broadened for flexibility.
+      Classes narrow via slot_usage to Access class.
+      
+    range: uriorcurie
+    implements:
+      - owl:ObjectProperty  # Force OWL ObjectProperty to avoid ambiguous type warning
+    required: false
+    multivalued: true
+    
+    exact_mappings:
+      - schema:publicAccess
+    
+    close_mappings:
+      - dcterms:accessRights
+    
+    related_mappings:
+      - schema:isAccessibleForFree
+    
+    annotations:
+      rico_naming_convention: |
+        Follows RiC-O "offersOrOffered" pattern for temporal predicates.
+        See Rule 39: Slot Naming Convention (RiC-O Style)
+      replaces_slots: >-
+        collection_access
+      migration_date: "2026-01-19"
+    
+    comments:
+      - "Generic access slot for collections, services, facilities"
+      - "Maps to schema:publicAccess as primary URI"
+      - "Range: uriorcurie (Rule 55) - allows Access class via slot_usage"
+      - "RiC-O naming: offersOrOffered indicates potentially historical relationship"
+      - "RULE 53: Created per slot_fixes.yaml revision for collection_access"
+    
+    examples:
+      - value: "https://nde.nl/ontology/hc/access/public-by-appointment"
+        description: "Public access by appointment"
+      - value: "https://nde.nl/ontology/hc/access/academic-community-only"
+        description: "Access restricted to academic community"

schemas/20251121/linkml/modules/slots/preserves_or_preserved.yaml

@@ -0,0 +1,67 @@
+# preserves_or_preserved slot
+# Generic slot for preservation relationships (what is being preserved)
+#
+# Following RiC-O naming convention (Rule 39): "preservesOrPreserved..." pattern
+# for temporal relationships in heritage domain.
+#
+# Created: 2026-01-19
+# Migration: clear_thinking → preserves_or_preserved (per slot_fixes.yaml, Rule 53/56)
+# Rule compliance: 38, 39, 42, 53, 55
+
+id: https://nde.nl/ontology/hc/slot/preserves_or_preserved
+name: preserves_or_preserved_slot
+title: Preserves Or Preserved Slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+  prov: http://www.w3.org/ns/prov#
+  rico: https://www.ica.org/standards/RiC/ontology#
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+
+slots:
+  preserves_or_preserved:
+    slot_uri: rico:hasOrHadSubject
+    description: |
+      What is being preserved or maintained by this entity.
+      
+      **Temporal Semantics** (RiC-O Pattern):
+      The "preservesOrPreserved" naming follows RiC-O convention indicating
+      this relationship may be historical - an entity may have preserved
+      different content over time.
+      
+      **Ontological Alignment**:
+      - **Primary** (`slot_uri`): `rico:hasOrHadSubject` - RiC-O subject relationship
+      - **Close**: `prov:used` - PROV-O input relationship
+      - **Close**: `schema:object` - Schema.org action object
+      
+      **Usage**:
+      This is a GENERIC slot intended for reuse across multiple classes.
+      Classes may narrow the range in slot_usage to reference specific classes
+      (e.g., ReasoningContent for LLM context preservation).
+      
+      **LLM Thinking Context**:
+      In the context of LLM responses, this slot replaces the boolean `clear_thinking`
+      slot. Instead of a boolean flag, this slot points to a ReasoningContent object
+      that captures what reasoning is being preserved across turns.
+      
+      **Range**: `uriorcurie` (Rule 55 - broaden range for class-level narrowing)
+      
+      **Migrated From**: clear_thinking (2026-01-19)
+    range: uriorcurie
+    multivalued: true
+    exact_mappings:
+      - rico:hasOrHadSubject
+    close_mappings:
+      - prov:used
+      - schema:object
+    annotations:
+      custodian_types: '["*"]'
+      custodian_types_rationale: Generic preservation slot applicable to any entity type
+      specificity_score: 0.20
+      specificity_rationale: Generic preservation relationship slot used across many domains

schemas/20251121/linkml/modules/slots/purpose.yaml

@@ -1,19 +1,29 @@
 id: https://nde.nl/ontology/hc/slot/purpose
-name: purpose_slot
-title: Purpose Slot
+name: purpose-slot
+
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+
+default_prefix: hc
+
 imports:
   - linkml:types
-default_prefix: hc
+
 slots:
   purpose:
-    description: 'Purpose and use case for this IoT device/network.
-
-
-      Dublin Core: description for purpose statement.
-
-      '
+    slot_uri: schema:description
+    description: |
+      Primary purpose and function of this class or entity.
+      Documents the main reason this type or instance exists.
+      
+      **Migrated from**: `**Purpose**:` and `**PURPOSE**:` sections in description text.
+      
+      **Use cases**:
+      - Purpose of heritage institution types
+      - Purpose of IoT devices/networks
+      - Purpose of technical systems
     range: string
-    slot_uri: hc:purpose
+    annotations:
+      source_section: "**Purpose**:"

schemas/20251121/linkml/modules/slots/regulates_or_regulated.yaml

@@ -0,0 +1,74 @@
+# regulates_or_regulated slot
+# Generic regulation relationship following RiC-O naming pattern
+#
+# Generation date: 2026-01-19
+# Rule compliance: 38 (slot centralization + semantic URI), 39 (RiC-O naming), 53 (slot_fixes.yaml)
+#
+# Created for climate_control_type migration
+
+id: https://nde.nl/ontology/hc/slot/regulates_or_regulated
+name: regulates_or_regulated_slot
+title: Regulates Or Regulated Slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  prov: http://www.w3.org/ns/prov#
+  dcterms: http://purl.org/dc/terms/
+  odrl: http://www.w3.org/ns/odrl/2/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+
+slots:
+  regulates_or_regulated:
+    slot_uri: odrl:target
+    description: |
+      Entity or system that is or was regulated by a policy or control mechanism.
+      
+      **Temporal Semantics** (RiC-O Pattern):
+      The "OrRegulated" suffix follows RiC-O convention indicating
+      the regulation relationship may be current or historical.
+      
+      **Ontological Alignment**:
+      - **Primary** (`slot_uri`): `odrl:target` - ODRL target of policy
+      - **Related**: `prov:wasInfluencedBy` - PROV-O influence
+      
+      **Use Cases**:
+      - Climate control policy regulating climate control systems
+      - Access policy regulating collection access
+      - Preservation policy regulating storage conditions
+      
+      **Cardinality**:
+      Multivalued - policies may regulate multiple entities/systems.
+      
+    range: uriorcurie
+    required: false
+    multivalued: true
+    inlined: true
+    inlined_as_list: true
+    
+    related_mappings:
+      - prov:wasInfluencedBy
+    
+    annotations:
+      rico_naming_convention: |
+        Follows RiC-O "OrRegulated" pattern for temporal predicates.
+        See Rule 39: Slot Naming Convention (RiC-O Style)
+      created_for: "climate_control_type migration"
+      migration_date: "2026-01-19"
+      custodian_types: '["*"]'
+      custodian_types_rationale: Regulation relationships apply to all heritage types.
+      specificity_score: 0.40
+      specificity_rationale: Moderately specialized slot for policy-target relationships.
+    
+    comments:
+      - "Links policies to what they regulate"
+      - "Maps to odrl:target for rights/rules targets"
+      - "RiC-O naming: OrRegulated indicates potentially historical"
+    
+    examples:
+      - value: "hc:ClimateControl/warehouse-hvac"
+        description: "Climate control system regulated by policy"

schemas/20251121/linkml/modules/slots/related_type_name.yaml

@@ -0,0 +1,19 @@
+id: https://nde.nl/ontology/hc/slot/related_type_name
+name: related_type_name-slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+
+slots:
+  related_type_name:
+    slot_uri: schema:name
+    description: Name of the related class
+    range: string
+    required: true

schemas/20251121/linkml/modules/slots/related_type_note.yaml

@@ -0,0 +1,18 @@
+id: https://nde.nl/ontology/hc/slot/related_type_note
+name: related_type_note-slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  dcterms: http://purl.org/dc/terms/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+
+slots:
+  related_type_note:
+    slot_uri: dcterms:description
+    description: Explanation of how this type relates
+    range: string

schemas/20251121/linkml/modules/slots/related_type_relationship.yaml

@@ -0,0 +1,19 @@
+id: https://nde.nl/ontology/hc/slot/related_type_relationship
+name: related_type_relationship-slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  skos: http://www.w3.org/2004/02/skos/core#
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+
+slots:
+  related_type_relationship:
+    slot_uri: skos:note
+    description: |
+      Nature of the relationship (e.g., "broader", "narrower", "related", "contrast")
+    range: string

schemas/20251121/linkml/modules/slots/related_type_wikidata.yaml

@@ -0,0 +1,18 @@
+id: https://nde.nl/ontology/hc/slot/related_type_wikidata
+name: related_type_wikidata-slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+
+slots:
+  related_type_wikidata:
+    slot_uri: hc:wikidataId
+    description: Wikidata Q-number for the related type
+    range: string
+    pattern: "^Q[0-9]+$"

schemas/20251121/linkml/modules/slots/related_types.yaml

@@ -0,0 +1,27 @@
+id: https://nde.nl/ontology/hc/slot/related_types
+name: related_types-slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  skos: http://www.w3.org/2004/02/skos/core#
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../classes/RelatedType
+
+slots:
+  related_types:
+    slot_uri: skos:related
+    description: |
+      Related heritage institution types with context.
+      Documents associations with other classes in the ontology.
+      
+      **Migrated from**: `**Related Types**:` sections.
+    range: RelatedType
+    multivalued: true
+    inlined_as_list: true
+    annotations:
+      source_section: "**Related Types**:"

schemas/20251121/linkml/modules/slots/research_value.yaml

@@ -0,0 +1,23 @@
+id: https://nde.nl/ontology/hc/slot/research_value
+name: research_value-slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+
+slots:
+  research_value:
+    slot_uri: hc:researchValue
+    description: |
+      Research and scholarly value of this type of institution or collection.
+      Documents what types of research this class supports.
+      
+      **Migrated from**: `**Research Value**:` sections.
+    range: string
+    annotations:
+      source_section: "**Research Value**:"

schemas/20251121/linkml/modules/slots/scope_description.yaml

@@ -0,0 +1,29 @@
+id: https://nde.nl/ontology/hc/slot/scope_description
+name: scope_description-slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  rico: https://www.ica.org/standards/RiC/ontology#
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+
+slots:
+  scope_description:
+    slot_uri: rico:scopeAndContent
+    description: |
+      Detailed description of what this class encompasses.
+      Explains the boundaries and coverage of this heritage type.
+      
+      **Migrated from**: `**Scope**:` sections in description text.
+      
+      **Example content**:
+      - What types of materials/collections are included
+      - Geographic or temporal scope
+      - Organizational or institutional scope
+    range: string
+    annotations:
+      source_section: "**Scope**:"

schemas/20251121/linkml/modules/slots/slot_fixes.yaml

@@ -9680,6 +9680,16 @@ fixes:
     type: slot
   - label: ReasoningContent
     type: class
+  processed:
+    status: true
+    timestamp: '2026-01-19T20:00:00Z'
+    session: session-2026-01-19-clear-thinking-migration
+    notes: |
+      FULLY MIGRATED: clear_thinking → preserves_or_preserved + ReasoningContent.
+      Existing: has_or_had_mode slot, ThinkingMode class.
+      Created: preserves_or_preserved.yaml slot, ReasoningContent.yaml class.
+      Updated: LLMResponse.yaml (imports, slots, slot_usage, description).
+      Archived: modules/slots/archive/clear_thinking_archived_20260119.yaml.
 - original_slot_id: https://nde.nl/ontology/hc/slot/climate_control_type
   revision:
   - label: has_or_had_policy
@@ -9698,6 +9708,19 @@ fixes:
     type: slot
   - label: ClimateControlTypes
     type: class
+  processed:
+    status: true
+    timestamp: '2026-01-19T20:30:00Z'
+    session: session-2026-01-19-climate-control-type-migration
+    notes: |
+      FULLY MIGRATED: climate_control_type → has_or_had_policy + ClimateControlPolicy.
+      Existing slots used: has_or_had_policy, has_or_had_type, includes_or_included.
+      Created: regulates_or_regulated.yaml slot (new RiC-O pattern).
+      Created: ClimateControlPolicy.yaml, ClimateControl.yaml classes.
+      Created: ClimateControlType.yaml (abstract base), ClimateControlTypes.yaml (concrete types) per Rule 0b.
+      Concrete types: HeatedClimateControl, HVACClimateControl, DehumidifiedClimateControl, CooledClimateControl, PassiveClimateControl, NoClimateControl.
+      Updated: Warehouse.yaml (imports, slots list, slot_usage, 2 examples).
+      Archived: modules/slots/archive/climate_control_type_archived_20260119.yaml.
 - original_slot_id: https://nde.nl/ontology/hc/slot/closed_space_id
   revision:
   - label: has_or_had_identifier
@@ -9721,12 +9744,35 @@ fixes:
     type: slot
   - label: CMSTypes
     type: class
+  processed:
+    status: true
+    timestamp: '2026-01-19T21:30:00Z'
+    session: session-2026-01-19-cms-category-migration
+    notes: |
+      FULLY MIGRATED: cms_category → has_or_had_type + CMSType.
+      Existing slots used: has_or_had_type, includes_or_included.
+      Created: CMSType.yaml (abstract base), CMSTypes.yaml (7 concrete types) per Rule 0b.
+      Concrete types: MuseumCMS, ArchiveCMS, LibraryCMS, DigitalAssetManagement, DigitalRepository, MixedCMS, CustomCMS.
+      Updated: CollectionManagementSystem.yaml (imports, slots list, slot_usage, 3 examples).
+      Archived: modules/slots/archive/cms_category_archived_20260119.yaml.
 - original_slot_id: https://nde.nl/ontology/hc/slot/cms_detected
   revision:
   - label: is_or_was_based_on
     type: slot
   - label: CMS
     type: class
+  processed:
+    status: true
+    timestamp: '2026-01-19T21:45:00Z'
+    session: session-2026-01-19-cms-detected-migration
+    notes: |
+      FULLY MIGRATED: cms_detected → is_or_was_based_on + CMS.
+      Created: is_or_was_based_on.yaml (temporal relationship slot per Rule 39).
+      Created: CMS.yaml (detected CMS class with cms_name, version, detection_method).
+      Updated: AuxiliaryDigitalPlatform.yaml (imports, slots list, slot_usage with CMS examples).
+      Semantic improvement: Boolean flag replaced with structured CMS reference.
+      If is_or_was_based_on present → CMS detected; if absent → no CMS.
+      Archived: modules/slots/archive/cms_detected_archived_20260119.yaml.
 - original_slot_id: https://nde.nl/ontology/hc/slot/cms_id
   revision:
   - label: has_or_had_identifier
@@ -9761,12 +9807,64 @@ fixes:
     type: slot
   - label: Version
     type: class
+  processed:
+    status: true
+    timestamp: '2026-01-19T22:15:00Z'
+    session: session-2026-01-19-cms-product-version-migration
+    notes: |
+      FULLY MIGRATED: cms_product_version → has_or_had_version + Version.
+      
+      **Existing slot used**: has_or_had_version (generic temporal version relationship).
+      
+      **Created**: Version.yaml - structured version class with semantic versioning support:
+      - version_string (required): Full version string (e.g., "1.8.0")
+      - major_version, minor_version, patch_version: Integer components
+      - prerelease_tag, build_metadata: Extended version metadata
+      - release_date, temporal_extent: Temporal validity of version
+      
+      **Updated**: CollectionManagementSystem.yaml:
+      - Imports: Added has_or_had_version and Version
+      - Slots list: Replaced cms_product_version with has_or_had_version
+      - Slot_usage: Added has_or_had_version with range: Version, multivalued: true
+      - Examples: Updated 3 examples (Adlib 7.4, CollectiveAccess 1.8.0, MAIS-Flexis null)
+      
+      **Archived**: modules/slots/archive/cms_product_version_archived_20260119.yaml
+      
+      **Pattern**: Uses structured Version class to capture semantic versioning components
+      instead of simple string, enabling version comparison and temporal version tracking.
 - original_slot_id: https://nde.nl/ontology/hc/slot/co_funding_required
   revision:
   - label: requires_or_required
     type: slot
   - label: CoFunding
     type: class
+  processed:
+    status: true
+    timestamp: '2026-01-19T23:00:00Z'
+    session: session-2026-01-19-co-funding-required-migration
+    notes: |
+      FULLY MIGRATED: co_funding_required → requires_or_required + CoFunding.
+      
+      **Existing slot used**: requires_or_required (generic temporal requirement relationship).
+      
+      **Created**: CoFunding.yaml - structured co-funding class with:
+      - is_required (required): Boolean indicating if co-funding is mandatory
+      - minimum_percentage: Minimum percentage of co-funding required
+      - maximum_percentage: Maximum percentage allowed
+      - funding_sources: Eligible sources for matching funds
+      - has_or_had_description: Additional requirements or conditions
+      - temporal_extent: TimeSpan for when requirement applies
+      
+      **Updated**: CallForApplication.yaml:
+      - Imports: Added requires_or_required slot and CoFunding class
+      - Slots list: Replaced co_funding_required with requires_or_required
+      - Slot_usage: Added requires_or_required with range: CoFunding
+      - Examples: Updated to use structured CoFunding objects
+      
+      **Archived**: modules/slots/archive/co_funding_required_archived_20260119.yaml
+      
+      **Pattern**: Uses structured CoFunding class instead of boolean to capture
+      percentage requirements, eligible sources, and temporal applicability.
 - original_slot_id: https://nde.nl/ontology/hc/slot/co_organized_by
   revision:
   - label: has_or_had_organizer
@@ -9777,6 +9875,40 @@ fixes:
     type: slot
   - label: OrganizerRole
     type: class
+  processed:
+    status: true
+    timestamp: '2026-01-19T23:15:00Z'
+    session: session-2026-01-19-co-organized-by-migration
+    notes: |
+      FULLY MIGRATED: co_organized_by → has_or_had_organizer + Organizer + OrganizerRole.
+      
+      **Created slot**: has_or_had_organizer.yaml - generic temporal organizer relationship
+      - slot_uri: schema:organizer
+      - range: uriorcurie (broadened per Rule 55)
+      - multivalued: true
+      
+      **Existing slot used**: has_or_had_role.yaml (already exists)
+      
+      **Created classes**:
+      - Organizer.yaml: Entity that organizes events with:
+        - organizer_entity (required): Reference to organizing institution
+        - has_or_had_role: OrganizerRole specifying role type
+        - organizer_contribution: Description of organizational contribution
+      
+      - OrganizerRole.yaml: Role of an organizer with:
+        - role_type (required): OrganizerRoleTypeEnum (PRIMARY, CO_ORGANIZER, SPONSOR_ORGANIZER, LENDING_INSTITUTION, HOST_VENUE, SUPPORTING_PARTNER, ADVISOR)
+        - role_description: Additional description
+      
+      **Updated**: Exhibition.yaml:
+      - Imports: Added has_or_had_organizer slot, Organizer and OrganizerRole classes
+      - Slots list: Replaced co_organized_by with has_or_had_organizer
+      - Slot_usage: Added has_or_had_organizer with range: Organizer, inlined: true
+      - Examples: Updated 3 examples to use structured Organizer objects with roles
+      
+      **Archived**: modules/slots/archive/co_organized_by_archived_20260119.yaml
+      
+      **Pattern**: Uses Organizer class with role discrimination to replace separate
+      organized_by/co_organized_by slots with single has_or_had_organizer slot.
 - original_slot_id: https://nde.nl/ontology/hc/slot/collected_in
   revision:
   - label: is_or_was_included_in
@@ -9805,6 +9937,11 @@ fixes:
     type: slot
   - label: Access
     type: class
+  processed:
+    status: true
+    notes: '2026-01-19: Migrated in EducationProviderType.yaml. Created offers_or_offered_access.yaml slot (temporal access offering relationship)
+      and Access.yaml class (structured access with AccessTypeEnum). Updated imports, replaced collection_access with offers_or_offered_access slot,
+      updated slot_usage with range Access and multivalued: true. Archived collection_access.yaml to archive/collection_access_archived_20260119.yaml.'
 - original_slot_id: https://nde.nl/ontology/hc/slot/collection_broader_type
   revision:
   - label: has_or_had_hypernym
@@ -9826,6 +9963,11 @@ fixes:
     type: slot
   - label: TimeSpan
     type: class
+  processed:
+    status: true
+    notes: '2026-01-19: Migrated in BiologicalObject.yaml. Created was_acquired_through.yaml slot and Acquisition.yaml class
+      (CIDOC-CRM E8 Acquisition with AcquisitionMethodEnum). Uses existing temporal_extent slot and TimeSpan class. Updated imports,
+      slots list, slot_usage with examples. Archived collection_date.yaml to archive/collection_date_archived_20260119.yaml.'
 - original_slot_id: https://nde.nl/ontology/hc/slot/collection_description
   revision:
   - label: has_or_had_description
@@ -9841,6 +9983,11 @@ fixes:
     type: slot
   - label: CollectionDiscoveryScore
     type: class
+  processed:
+    status: true
+    notes: '2026-01-19: Created CollectionDiscoveryScore.yaml class (sosa:Observation based). Slot was only used in archived files
+      (TemplateSpecificityScores_archived_20260117.yaml). Uses existing has_or_had_score slot. Archived collection_discovery_score.yaml
+      to archive/collection_discovery_score_archived_20260119.yaml.'
 - original_slot_id: https://nde.nl/ontology/hc/slot/collection_focus
   revision:
   - label: has_or_had_content
@@ -10463,6 +10610,11 @@ fixes:
     type: slot
   - label: ConfidenceScore
     type: class
+  processed:
+    status: true
+    notes: '2026-01-19: Migration complete. Updated AudioEventSegment.yaml, BirthDate.yaml,
+      DetectedEntity.yaml, Event.yaml, VideoTimeSegment.yaml, FindingAid.yaml to use
+      is_or_was_generated_by + GenerationEvent + ConfidenceScore pattern per Rule 53.'
 - original_slot_id: https://nde.nl/ontology/hc/slot/confidence_method
   revision:
   - label: is_or_was_generated_by
@@ -10477,6 +10629,10 @@ fixes:
     type: slot
   - label: ConfidenceMethod
     type: class
+  processed:
+    status: true
+    notes: '2026-01-19: ConfidenceMethod class created. Note: ConfidenceMeasure.yaml still
+      uses confidence_method directly as it serves as range for has_or_had_confidence_measure slot.'
 - original_slot_id: https://nde.nl/ontology/hc/slot/confidence_score
   revision:
   - label: is_or_was_generated_by
@@ -10495,6 +10651,11 @@ fixes:
     type: slot
   - label: ConfidenceMethodScore
     type: class
+  processed:
+    status: true
+    notes: '2026-01-19: Migration complete. Updated Provenance.yaml, ProvenanceBlock.yaml,
+      ChAnnotatorAnnotationMetadata.yaml, Hypothesis.yaml, PrimaryDigitalPresenceAssertion.yaml,
+      StorageCondition.yaml to use is_or_was_generated_by + GenerationEvent + ConfidenceScore pattern per Rule 53.'
 - original_slot_id: https://nde.nl/ontology/hc/slot/confidence_threshold
   revision:
   - label: has_or_had_treshold
@@ -10507,6 +10668,12 @@ fixes:
     type: slot
   - label: ConfidenceValue
     type: class
+  processed:
+    status: true
+    notes: '2026-01-19: Note: ConfidenceMeasure.yaml still uses confidence_value directly
+      as it serves as range for has_or_had_confidence_measure slot in CustodianObservation
+      and ReconstructionActivity. This is intentional - ConfidenceMeasure is a different
+      pattern from the is_or_was_generated_by migration.'
 - original_slot_id: https://nde.nl/ontology/hc/slot/conflict_status
   revision:
   - label: is_or_was_involved_in
@@ -10743,6 +10910,210 @@ fixes:
     type: slot
   - label: DeceasedStatus
     type: class
-
-
-# https://nde.nl/ontology/hc/slot/decommission_date
+- original_slot_id: https://nde.nl/ontology/hc/slot/decommission_date
+  revision:
+  - label: is_or_was_decommissioned_at
+    type: slot
+  - label: Timestamp
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/deductibility_conditions
+  revision:
+  - label: has_or_had_condition
+    type: slot
+  - label: Condition
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/deductibility_status
+  revision:
+  - label: has_or_had_type
+    type: slot
+  - label: TaxDeductibilityType
+    type: class
+  - label: includes_or_included
+    type: slot
+  - label: TaxDeductibilityTypes
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/deductible_percentage
+  revision:
+  - label: has_or_had_percentage
+    type: slot
+  - label: Percentage
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/deduction_percentage
+  revision:
+  - label: offers_or_offered
+    type: slot
+  - label: TaxDeductibility
+    type: class
+  - label: has_or_had_percentage
+    type: slot
+  - label: Percentage
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/default_access_policy
+  revision:
+  - label: condition_of_access
+    type: slot
+  - label: Condition
+    type: slot
+- original_slot_id: https://nde.nl/ontology/hc/slot/default_audio_language
+  revision:
+  - label: has_or_had_language
+    type: slot
+  - label: Language
+    type: class
+  - label: has_or_had_status
+    type: slot
+  - label: Status
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/default_language
+  revision:
+  - label: has_or_had_language
+    type: slot
+  - label: Language
+    type: class
+  - label: has_or_had_status
+    type: slot
+  - label: Status
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/default_position
+  revision:
+  - label: has_or_had_caption
+    type: slot
+  - label: Caption
+    type: class
+  - label: has_or_had_alignment
+    type: slot
+  - label: Alignment
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/defined_by_standard
+  revision:
+  - label: has_or_had_standard
+    type: slot
+  - label: Standard
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/definition
+  revision:
+  - label: has_or_had_resolution
+    type: slot
+  - label: Resolution
+    type: class
+  - label: has_or_had_quantity
+    type: slot
+  - label: Quantity
+    type: class
+  - label: has_or_had_unit
+    type: slot
+  - label: Unit
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/degree_name
+  revision:
+  - label: has_or_had_label
+    type: slot
+  - label: Label
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/deliverable
+  revision:
+  - label: has_or_had_objective
+    type: slot
+  - label: Deliverable
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/departement_code
+  revision:
+  - label: has_or_had_service_area
+    type: slot
+  - label: ServiceArea
+    type: class
+  - label: has_or_had_identifier
+    type: slot
+  - label: Identifier
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/departement_name
+  revision:
+  - label: has_or_had_service_area
+    type: slot
+  - label: ServiceArea
+    type: class
+  - label: has_or_had_label
+    type: slot
+  - label: Label
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/department_code
+  revision:
+  - label: has_or_had_label
+    type: slot
+  - label: Label
+    type: class
+  - label: has_or_had_type
+    type: slot
+  - label: LabelType
+    type: class
+  - label: includes_or_included
+    type: slot
+  - label: LabelTypes
+    type: class
+    note: this includes the Abbreviation label type class.
+- original_slot_id: https://nde.nl/ontology/hc/slot/department_description
+  revision:
+  - label: has_or_had_description
+    type: slot
+  - label: Description
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/department_head
+  revision:
+  - label: is_or_was_managed_by
+    type: slot
+  - label: Manager
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/department_id
+  revision:
+  - label: has_or_had_identifier
+    type: slot
+  - label: Identifier
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/department_name
+  revision:
+  - label: has_or_had_label
+    type: slot
+  - label: Label
+    type: class
+  - label: has_or_had_type
+    type: slot
+  - label: LabelType
+    type: class
+  - label: includes_or_included
+    type: slot
+  - label: LabelTypes
+    type: class
+    note: this includes the OfficialLabel label type class.
+- original_slot_id: https://nde.nl/ontology/hc/slot/deployment_date
+  revision:
+  - label: is_or_was_deployed_at
+    type: slot
+  - label: DeploymentEvent
+    type: class
+  - label: temporal_extent
+    type: slot
+  - label: TimeSpan
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/derived_from_entity
+  revision:
+  - label: refers_or_referred_to
+    type: slot
+  - label: EntityReconstruction
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/derived_from_observation
+  revision:
+  - label: has_or_had_provenance
+    type: slot
+  - label: Provenance
+    type: class
+  - label: is_or_was_based_on
+    type: slot
+  - label: Observation
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/description
+  revision:
+  - label: has_or_had_description
+    type: slot
+  - label: Description
+    type: class
+# https://nde.nl/ontology/hc/slots/description_sections

schemas/20251121/linkml/modules/slots/temporal_dynamics.yaml

@@ -0,0 +1,23 @@
+id: https://nde.nl/ontology/hc/slot/temporal_dynamics
+name: temporal_dynamics-slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+
+slots:
+  temporal_dynamics:
+    slot_uri: hc:temporalDynamics
+    description: |
+      Time-based change patterns and evolution of this type.
+      Documents how institutions of this type change over time.
+      
+      **Migrated from**: `**Temporal Dynamics**:` sections.
+    range: string
+    annotations:
+      source_section: "**Temporal Dynamics**:"

schemas/20251121/linkml/modules/slots/typical_contents.yaml

@@ -0,0 +1,26 @@
+id: https://nde.nl/ontology/hc/slot/typical_contents
+name: typical_contents-slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  rico: https://www.ica.org/standards/RiC/ontology#
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+
+slots:
+  typical_contents:
+    slot_uri: rico:hasContentOfType
+    description: |
+      Typical contents or holdings for this type of institution.
+      Lists common record types, materials, or collection types.
+      
+      **Migrated from**: `**Typical Contents**:` sections.
+    range: string
+    multivalued: true
+    inlined_as_list: true
+    annotations:
+      source_section: "**Typical Contents**:"

schemas/20251121/linkml/modules/slots/use_cases.yaml

@@ -0,0 +1,26 @@
+id: https://nde.nl/ontology/hc/slot/use_cases
+name: use_cases-slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+
+slots:
+  use_cases:
+    slot_uri: schema:usageInfo
+    description: |
+      Application scenarios and use cases for this class.
+      Documents how this type is used in practice.
+      
+      **Migrated from**: `**Use Cases**:` and `**USE CASES**:` sections.
+    range: string
+    multivalued: true
+    inlined_as_list: true
+    annotations:
+      source_section: "**Use Cases**:"

schemas/20251121/linkml/modules/slots/was_acquired_through.yaml

@@ -0,0 +1,54 @@
+id: https://nde.nl/ontology/hc/slot/was_acquired_through
+name: was_acquired_through_slot
+title: Was Acquired Through Slot
+# Created per slot_fixes.yaml revision for collection_date migration
+# RULE 53: Generic acquisition relationship pattern
+# RULE 39: RiC-O temporal naming convention (was_* for past events)
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  crm: http://www.cidoc-crm.org/cidoc-crm/
+  rico: https://www.ica.org/standards/RiC/ontology#
+  prov: http://www.w3.org/ns/prov#
+  schema: http://schema.org/
+
+imports:
+  - linkml:types
+
+default_prefix: hc
+
+slots:
+  was_acquired_through:
+    description: >-
+      Links an object or specimen to its acquisition event, capturing how and when it was obtained.
+      
+      Acquisition encompasses various methods of obtaining items for collections:
+      - Field collection (biological/geological specimens)
+      - Purchase (art, manuscripts, artifacts)
+      - Donation/bequest (gifts, estate donations)
+      - Transfer (from other institutions)
+      - Exchange (inter-institutional specimen exchange)
+      - Excavation (archaeological contexts)
+      
+      The Acquisition class captures temporal extent via TimeSpan, allowing for uncertain dates
+      common with historical specimens (e.g., "collected sometime in the 1750s").
+      
+      **Darwin Core alignment**: For biological specimens, this replaces the simpler `dwc:eventDate`
+      with a structured acquisition event that can capture collector, location, method, and date.
+    range: Acquisition
+    slot_uri: crm:P24i_changed_ownership_through
+    multivalued: true
+    inlined: true
+    inlined_as_list: true
+    exact_mappings:
+      - crm:P24i_changed_ownership_through
+    close_mappings:
+      - rico:hasOrHadHolder
+      - prov:wasGeneratedBy
+    related_mappings:
+      - schema:acquiredFrom
+      - dwc:eventDate
+    annotations:
+      rule_53_migration: "Replaces collection_date with structured Acquisition event"
+      darwin_core_note: "For biological specimens, Acquisition.temporal_extent replaces dwc:eventDate"