feat: Migrate multiple slots to structured classes and update processing notes

2026-01-26 01:41:04 +01:00 · 2026-01-26 01:41:04 +01:00 · fba1ab9353
commit fba1ab9353
parent 48d89206f9
121 changed files with 4478 additions and 650 deletions
--- a/frontend/public/schemas/20251121/linkml/manifest.json
+++ b/frontend/public/schemas/20251121/linkml/manifest.json
@ -1,12 +1,12 @@
 {
-  "generated": "2026-01-25T11:47:39.065Z",
+  "generated": "2026-01-25T23:23:44.391Z",
  "schemaRoot": "/schemas/20251121/linkml",
-  "totalFiles": 3045,
+  "totalFiles": 3044,
  "categoryCounts": {
    "main": 4,
-    "class": 1026,
+    "class": 1033,
    "enum": 154,
-    "slot": 1857,
+    "slot": 1849,
    "module": 4
  },
  "categories": [
@ -1490,6 +1490,11 @@
          "path": "modules/classes/DeviceTypes.yaml",
          "category": "class"
        },
+        {
+          "name": "DiarizationStatus",
+          "path": "modules/classes/DiarizationStatus.yaml",
+          "category": "class"
+        },
        {
          "name": "DigitalArchive",
          "path": "modules/classes/DigitalArchive.yaml",
@ -1505,11 +1510,21 @@
          "path": "modules/classes/DigitalArchiveRecordSetTypes.yaml",
          "category": "class"
        },
+        {
+          "name": "DigitalConfidence",
+          "path": "modules/classes/DigitalConfidence.yaml",
+          "category": "class"
+        },
        {
          "name": "DigitalPlatform",
          "path": "modules/classes/DigitalPlatform.yaml",
          "category": "class"
        },
+        {
+          "name": "DigitalPlatformScore",
+          "path": "modules/classes/DigitalPlatformScore.yaml",
+          "category": "class"
+        },
        {
          "name": "DigitalPlatformType",
          "path": "modules/classes/DigitalPlatformType.yaml",
@ -1575,6 +1590,21 @@
          "path": "modules/classes/DigitalPlatformV2TransformationMetadata.yaml",
          "category": "class"
        },
+        {
+          "name": "DigitalPresence",
+          "path": "modules/classes/DigitalPresence.yaml",
+          "category": "class"
+        },
+        {
+          "name": "DigitalPresenceType",
+          "path": "modules/classes/DigitalPresenceType.yaml",
+          "category": "class"
+        },
+        {
+          "name": "DigitalProficiency",
+          "path": "modules/classes/DigitalProficiency.yaml",
+          "category": "class"
+        },
        {
          "name": "DimArchives",
          "path": "modules/classes/DimArchives.yaml",
@ -4045,6 +4075,11 @@
          "path": "modules/classes/SourceWork.yaml",
          "category": "class"
        },
+        {
+          "name": "Speaker",
+          "path": "modules/classes/Speaker.yaml",
+          "category": "class"
+        },
        {
          "name": "SpecialCollection",
          "path": "modules/classes/SpecialCollection.yaml",
@ -6697,71 +6732,11 @@
          "path": "modules/slots/description_type.yaml",
          "category": "slot"
        },
-        {
-          "name": "device_count",
-          "path": "modules/slots/device_count.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "diarization_confidence",
-          "path": "modules/slots/diarization_confidence.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "diarization_enabled",
-          "path": "modules/slots/diarization_enabled.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "diarization_end_seconds",
-          "path": "modules/slots/diarization_end_seconds.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "diarization_speaker_id",
-          "path": "modules/slots/diarization_speaker_id.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "diarization_speaker_label",
-          "path": "modules/slots/diarization_speaker_label.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "diarization_start_seconds",
-          "path": "modules/slots/diarization_start_seconds.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "digital_confidence",
-          "path": "modules/slots/digital_confidence.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "digital_indicator",
-          "path": "modules/slots/digital_indicator.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "digital_platform",
-          "path": "modules/slots/digital_platform.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "digital_platform_score",
-          "path": "modules/slots/digital_platform_score.yaml",
-          "category": "slot"
-        },
        {
          "name": "digital_presence_type",
          "path": "modules/slots/digital_presence_type.yaml",
          "category": "slot"
        },
-        {
-          "name": "digital_professional",
-          "path": "modules/slots/digital_professional.yaml",
-          "category": "slot"
-        },
        {
          "name": "digital_surrogate",
          "path": "modules/slots/digital_surrogate.yaml",
@ -6812,11 +6787,6 @@
          "path": "modules/slots/dissolution_date.yaml",
          "category": "slot"
        },
-        {
-          "name": "dissolve_count",
-          "path": "modules/slots/dissolve_count.yaml",
-          "category": "slot"
-        },
        {
          "name": "dissolved_date",
          "path": "modules/slots/dissolved_date.yaml",
@ -7022,6 +6992,11 @@
          "path": "modules/slots/emic_name.yaml",
          "category": "slot"
        },
+        {
+          "name": "emphasizes_or_emphasized",
+          "path": "modules/slots/emphasizes_or_emphasized.yaml",
+          "category": "slot"
+        },
        {
          "name": "employer_linkedin_url",
          "path": "modules/slots/employer_linkedin_url.yaml",
@ -7187,6 +7162,11 @@
          "path": "modules/slots/estimated_volume.yaml",
          "category": "slot"
        },
+        {
+          "name": "estimates_or_estimated",
+          "path": "modules/slots/estimates_or_estimated.yaml",
+          "category": "slot"
+        },
        {
          "name": "etag",
          "path": "modules/slots/etag.yaml",
@ -9192,6 +9172,11 @@
          "path": "modules/slots/has_or_had_digital_platform.yaml",
          "category": "slot"
        },
+        {
+          "name": "has_or_had_digital_presence",
+          "path": "modules/slots/has_or_had_digital_presence.yaml",
+          "category": "slot"
+        },
        {
          "name": "has_or_had_direction",
          "path": "modules/slots/has_or_had_direction.yaml",
@ -10562,6 +10547,11 @@
          "path": "modules/slots/includes_timestamp.yaml",
          "category": "slot"
        },
+        {
+          "name": "indicates_or_indicated",
+          "path": "modules/slots/indicates_or_indicated.yaml",
+          "category": "slot"
+        },
        {
          "name": "industry_benchmark_high",
          "path": "modules/slots/industry_benchmark_high.yaml",
@ -10967,6 +10957,11 @@
          "path": "modules/slots/is_or_was_derived_from.yaml",
          "category": "slot"
        },
+        {
+          "name": "is_or_was_diarized",
+          "path": "modules/slots/is_or_was_diarized.yaml",
+          "category": "slot"
+        },
        {
          "name": "is_or_was_encompassed_by",
          "path": "modules/slots/is_or_was_encompassed_by.yaml",
--- a/frontend/public/schemas/20251121/linkml/modules/classes/Custodian.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/classes/Custodian.yaml
@ -23,7 +23,9 @@ imports:
  - ../slots/has_or_had_custodian_type
  - ../slots/legal_status
  - ../slots/place_designation
-  - ../slots/digital_platform
+  # MIGRATED 2026-01-25: digital_platform → has_or_had_digital_presence (Rule 53)
+  - ../slots/has_or_had_digital_presence
+  # - ../slots/digital_platform  # REMOVED
  - ../slots/has_or_had_collection  # was: has_collection - migrated per Rule 53 (2025-01-15)
  - ../slots/organizational_structure
  - ../slots/has_or_had_organizational_change_event
@ -196,7 +198,8 @@ classes:
    - created
    - has_or_had_custodian_type
    - has_or_had_policy  # was: data_license_policy - migrated per Rule 53 (2026-01-22)
-    - digital_platform
+    # MIGRATED 2026-01-25: digital_platform → has_or_had_digital_presence (Rule 53)
+    - has_or_had_digital_presence
    - is_or_was_encompassed_by  # was: encompassing_body - migrated per Rule 53 (2025-01-15)
    - has_or_had_exhibition
    - gift_shop
@ -235,11 +238,15 @@ classes:
        range: CustodianPlace
        inlined: true
        required: false
-      digital_platform:
+      # MIGRATED 2026-01-25: digital_platform → has_or_had_digital_presence (Rule 53)
+      has_or_had_digital_presence:
        range: DigitalPlatform
        multivalued: true
        required: false
        inlined_as_list: true
+        description: |
+          Digital platform(s) or online presence(s) associated with this custodian.
+          MIGRATED from digital_platform per slot_fixes.yaml (Rule 53, 2026-01-25).
      has_or_had_collection:  # was: has_collection - migrated per Rule 53 (2025-01-15)
        range: CustodianCollection
        multivalued: true
--- a/frontend/public/schemas/20251121/linkml/modules/classes/DiarizationStatus.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/classes/DiarizationStatus.yaml
@ -0,0 +1,69 @@
+# DiarizationStatus class
+# Status of speaker diarization process
+#
+# Generation date: 2026-01-25
+# Rule compliance: 0 (LinkML single source of truth), 53 (migration from diarization_enabled)
+# Migration source: diarization_enabled slot per slot_fixes.yaml
+
+id: https://nde.nl/ontology/hc/class/DiarizationStatus
+name: diarization_status_class
+title: DiarizationStatus Class
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../slots/has_or_had_label
+  - ../slots/has_or_had_identifier
+
+classes:
+  DiarizationStatus:
+    class_uri: schema:ActionStatusType
+    description: |
+      Represents the status of a speaker diarization process (enabled, disabled, completed, failed).
+      
+      **MIGRATION SOURCE**: Created from diarization_enabled slot migration (Rule 53, 2026-01-25).
+      
+      **Ontological Alignment**:
+      - **Primary**: `schema:ActionStatusType` - Status of an action
+      
+    exact_mappings:
+      - schema:ActionStatusType
+    
+    slots:
+      - has_or_had_identifier
+      - has_or_had_label
+    
+    slot_usage:
+      has_or_had_identifier:
+        description: Status code or identifier (e.g., "COMPLETED", "ENABLED").
+        range: uriorcurie
+        required: false
+      has_or_had_label:
+        description: Human-readable status description.
+        range: string
+        required: true
+    
+    annotations:
+      custodian_types: '["*"]'
+      specificity_score: 0.8
+      specificity_rationale: Specific to media analysis processes.
+    
+    comments:
+      - "CREATED from diarization_enabled migration per slot_fixes.yaml (Rule 53)"
+      - "Tracks status of diarization process"
+    
+    examples:
+      - value:
+          has_or_had_label: Enabled
+          has_or_had_identifier: https://schema.org/ActiveActionStatus
+        description: Diarization enabled/active
+      - value:
+          has_or_had_label: Completed
+          has_or_had_identifier: https://schema.org/CompletedActionStatus
+        description: Diarization completed
--- a/frontend/public/schemas/20251121/linkml/modules/classes/DigitalConfidence.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/classes/DigitalConfidence.yaml
@ -0,0 +1,82 @@
+# DigitalConfidence class
+# Represents confidence assessment for digital attributes/skills
+#
+# Created: 2026-01-25
+# Rule compliance: 0b (Type/Types pattern), 38 (slot centralization), 39 (RiC-O naming), 53 (slot_fixes.yaml)
+# Migration: digital_confidence → estimates_or_estimated + DigitalConfidence
+
+id: https://nde.nl/ontology/hc/class/DigitalConfidence
+name: DigitalConfidence
+title: Digital Confidence Class
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  dqv: http://www.w3.org/ns/dqv#
+  schema: http://schema.org/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../metadata
+  - ../slots/has_or_had_score
+  - ../slots/has_or_had_description
+  - ../slots/has_or_had_type
+
+classes:
+  DigitalConfidence:
+    class_uri: dqv:QualityMeasurement
+    description: |
+      Confidence assessment for digital attributes, skills, or proficiency.
+      
+      **DEFINITION**:
+      
+      DigitalConfidence captures the certainty level associated with an inferred
+      or extracted digital attribute (e.g., digital proficiency inferred from a profile).
+      
+      **Ontological Alignment**:
+      - **DQV**: `dqv:QualityMeasurement` - quality/confidence metric
+      
+      **Migrated From** (per slot_fixes.yaml):
+      - `digital_confidence` (float) → estimates_or_estimated + DigitalConfidence
+      
+    exact_mappings:
+      - dqv:QualityMeasurement
+    
+    slots:
+      - has_or_had_score
+      - has_or_had_description
+      - has_or_had_type
+    
+    slot_usage:
+      has_or_had_score:
+        description: |
+          Numeric confidence score (0.0-1.0).
+          Inherits broad range (Any) but overrides description/examples.
+        range: float
+        required: true
+        minimum_value: 0.0
+        maximum_value: 1.0
+        examples:
+          - value: 0.85
+            description: High confidence estimation
+      has_or_had_type:
+        description: Type of confidence assessment (e.g., PROFICIENCY_INFERENCE)
+        examples:
+          - value: SKILL_INFERENCE
+      has_or_had_description:
+        description: Explanation of the confidence assessment
+        examples:
+          - value: "Inferred from explicit skill endorsements and project history"
+    
+    annotations:
+      custodian_types: '["P"]'
+      custodian_types_rationale: Digital confidence applies to person profiles (custodian staff)
+      specificity_score: 0.60
+      specificity_rationale: Specific to person profile enrichment
+    
+    comments:
+      - "Represents confidence in digital attribute assessments"
+      - "Migrated from digital_confidence slot per slot_fixes.yaml"
+      - "Used in LinkedInProfile enrichment"
--- a/frontend/public/schemas/20251121/linkml/modules/classes/DigitalPlatformScore.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/classes/DigitalPlatformScore.yaml
@ -0,0 +1,52 @@
+# DigitalPlatformScore class
+# Score for digital platform relevance/specificity
+#
+# Generation date: 2026-01-25
+# Rule compliance: 0, 53
+# Migration source: digital_platform_score slot per slot_fixes.yaml
+
+id: https://nde.nl/ontology/hc/class/DigitalPlatformScore
+name: digital_platform_score_class
+title: Digital Platform Score Class
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+  sosa: http://www.w3.org/ns/sosa/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../slots/has_or_had_score
+
+classes:
+  DigitalPlatformScore:
+    class_uri: sosa:Result
+    description: |
+      Represents a score for digital platform relevance or specificity.
+      
+      **MIGRATION SOURCE**: Created from digital_platform_score slot migration (Rule 53, 2026-01-25).
+      
+      **Ontological Alignment**:
+      - **Primary**: `sosa:Result` - Result of an observation/scoring
+      
+    exact_mappings:
+      - sosa:Result
+    
+    slots:
+      - has_or_had_score
+    
+    slot_usage:
+      has_or_had_score:
+        description: The score value (0.0-1.0).
+        range: float
+        required: true
+        minimum_value: 0.0
+        maximum_value: 1.0
+    
+    annotations:
+      custodian_types: '["*"]'
+      specificity_score: 0.2
+      specificity_rationale: "Used for scoring digital platform relevance."
--- a/frontend/public/schemas/20251121/linkml/modules/classes/DigitalPresence.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/classes/DigitalPresence.yaml
@ -0,0 +1,65 @@
+# DigitalPresence class
+# Represents a digital presence instance (wrapper)
+#
+# Generation date: 2026-01-25
+# Rule compliance: 0, 53
+# Migration source: digital_presence_type slot per slot_fixes.yaml
+
+id: https://nde.nl/ontology/hc/class/DigitalPresence
+name: digital_presence_class
+title: Digital Presence Class
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  crm: http://www.cidoc-crm.org/cidoc-crm/
+  schema: http://schema.org/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../slots/has_or_had_type
+  - ../slots/has_or_had_identifier
+  - ./DigitalPresenceType
+  - ./DigitalPresenceTypes
+
+classes:
+  DigitalPresence:
+    class_uri: crm:E1_CRM_Entity
+    description: |
+      Represents a digital presence being asserted about (e.g. as primary).
+      Wrapper that links a specific presence instance (URI) to its type classification.
+      
+      **MIGRATION SOURCE**: Created from digital_presence_type slot migration (Rule 53, 2026-01-25).
+      
+      **Pattern**: Replaces `digital_presence_type` slot on assertion with structured object:
+      - `has_or_had_identifier`: URI of the presence (SocialMediaProfile, Website, etc.)
+      - `has_or_had_type`: Classification (DigitalPresenceType)
+      
+    exact_mappings:
+      - crm:E1_CRM_Entity
+    
+    slots:
+      - has_or_had_identifier
+      - has_or_had_type
+    
+    slot_usage:
+      has_or_had_identifier:
+        description: URI of the digital presence instance (e.g. hc:social-media/fb).
+        range: uriorcurie
+        required: true
+      has_or_had_type:
+        description: Type classification of this presence.
+        range: DigitalPresenceType
+        required: true
+        inlined: true
+    
+    annotations:
+      custodian_types: '["*"]'
+      specificity_score: 0.5
+      specificity_rationale: "Used for asserting properties of digital presences."
+    
+    comments:
+      - "CREATED from digital_presence_type migration per slot_fixes.yaml (Rule 53)"
+      - "Wrapper for linking presence instance to its type"
--- a/frontend/public/schemas/20251121/linkml/modules/classes/DigitalPresenceType.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/classes/DigitalPresenceType.yaml
@ -0,0 +1,58 @@
+# DigitalPresenceType class (Abstract Base)
+# Taxonomy for digital presence types
+#
+# Generation date: 2026-01-25
+# Rule compliance: 0, 0b, 53
+# Migration source: DigitalPresenceTypeEnum per slot_fixes.yaml
+
+id: https://nde.nl/ontology/hc/class/DigitalPresenceType
+name: digital_presence_type_class
+title: DigitalPresenceType Class (Abstract)
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../slots/has_or_had_label
+  - ../slots/has_or_had_identifier
+
+classes:
+  DigitalPresenceType:
+    class_uri: schema:Intangible
+    abstract: true
+    description: |
+      Abstract base class for digital presence taxonomy.
+      
+      **MIGRATION SOURCE**: Replaces DigitalPresenceTypeEnum (Rule 53, 2026-01-25).
+      
+      **Pattern**: Type/Types (Rule 0b)
+      - DigitalPresenceType (this file): Abstract base
+      - DigitalPresenceTypes (separate file): Concrete subclasses
+      
+    exact_mappings:
+      - schema:Intangible
+    
+    slots:
+      - has_or_had_identifier
+      - has_or_had_label
+    
+    slot_usage:
+      has_or_had_identifier:
+        description: Unique identifier for this presence type.
+        range: uriorcurie
+        required: false
+      has_or_had_label:
+        description: Human-readable name of this presence type.
+        range: string
+        required: true
+    
+    annotations:
+      custodian_types: '["*"]'
+      specificity_score: 0.6
+      type_types_pattern: base
+      type_types_related: DigitalPresenceTypes
--- a/frontend/public/schemas/20251121/linkml/modules/classes/DigitalProficiency.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/classes/DigitalProficiency.yaml
@ -0,0 +1,89 @@
+# DigitalProficiency class
+# Represents a digital skill, tool, or competency
+#
+# Created: 2026-01-25
+# Rule compliance: 0b (Type/Types pattern), 38 (slot centralization), 39 (RiC-O naming), 53 (slot_fixes.yaml)
+# Migration: digital_indicator → emphasizes_or_emphasized + DigitalProficiency
+
+id: https://nde.nl/ontology/hc/class/DigitalProficiency
+name: DigitalProficiency
+title: Digital Proficiency 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#
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../metadata
+  - ../slots/has_or_had_label
+  - ../slots/has_or_had_description
+  - ../slots/has_or_had_type
+
+classes:
+  DigitalProficiency:
+    class_uri: schema:DefinedTerm
+    description: |
+      A digital skill, tool, competency, or proficiency indicator.
+      
+      **DEFINITION**:
+      
+      DigitalProficiency represents a specific digital capability (e.g., "Python",
+      "Data Analysis", "CMS Management") identified in a person's profile.
+      
+      **Ontological Alignment**:
+      - **Schema.org**: `schema:DefinedTerm` - defined concept (skill)
+      - **SKOS**: `skos:Concept` - concept in a scheme
+      
+      **Migrated From** (per slot_fixes.yaml):
+      - `digital_indicator` (string list) → emphasizes_or_emphasized + DigitalProficiency
+      - `digital_professional` (boolean) → indicates_or_indicated + DigitalProficiency
+      
+    exact_mappings:
+      - schema:DefinedTerm
+    
+    close_mappings:
+      - skos:Concept
+    
+    slots:
+      - has_or_had_label
+      - has_or_had_description
+      - has_or_had_type
+    
+    slot_usage:
+      has_or_had_label:
+        description: Name of the proficiency (e.g., "Python", "Data Science")
+        required: true
+        examples:
+          - value: "Python"
+          - value: "Linked Data"
+      has_or_had_type:
+        description: Category of proficiency (LANGUAGE, TOOL, CONCEPT, etc.)
+        examples:
+          - value: PROGRAMMING_LANGUAGE
+          - value: METHODOLOGY
+    
+    annotations:
+      custodian_types: '["P"]'
+      custodian_types_rationale: Digital proficiency applies to person profiles
+      specificity_score: 0.60
+      specificity_rationale: Specific to person profile enrichment and skills analysis
+    
+    comments:
+      - "Represents specific digital skills/indicators"
+      - "Migrated from digital_indicator string list"
+      - "Used in DigitalProfessionalAssessment"
+    
+    examples:
+      - value:
+          has_or_had_label: "Python"
+          has_or_had_type: "PROGRAMMING_LANGUAGE"
+        description: Python programming skill
+      - value:
+          has_or_had_label: "Collection Management Systems"
+          has_or_had_type: "DOMAIN_TOOL"
+        description: CMS proficiency
--- a/frontend/public/schemas/20251121/linkml/modules/classes/InformationCarrier.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/classes/InformationCarrier.yaml
@ -53,6 +53,9 @@ imports:
  - ../slots/is_or_was_published
  - ./Publication
  - ../slots/doi
+  # MIGRATED 2026-01-25: duration → has_or_had_time_interval + TimeInterval (Rule 53)
+  - ../slots/has_or_had_time_interval
+  - ./TimeInterval
  - ../slots/duration
  - ../slots/edition_statement
  - ../slots/extent_text
@ -149,7 +152,8 @@ classes:
    # REMOVED 2026-01-24: date_of_publication - migrated to is_or_was_published (Rule 53)
    - is_or_was_published
    - doi
-    - duration
+    # MIGRATED 2026-01-25: duration → has_or_had_time_interval (Rule 53)
+    - has_or_had_time_interval
    - edition_statement
    - extent_text
    - file_number
@ -227,13 +231,22 @@ classes:
        examples:
        - value: 'xii, 324 p., [8] p. of plates : ill. ; 24 cm'
        - value: '1 atlas (42 maps) : col. ; 38 cm'
-      duration:
+      # MIGRATED 2026-01-25: duration → has_or_had_time_interval + TimeInterval (Rule 53)
+      has_or_had_time_interval:
        required: false
-        range: string
+        range: TimeInterval
+        inlined: true
+        description: |
+          Duration of the audiovisual carrier.
+          MIGRATED from duration (string) to TimeInterval class.
        examples:
-        - value: PT45M30S
-          description: 45 minutes 30 seconds
-        - value: 01:32:15
+          - value:
+              duration_value: PT45M30S
+              duration_description: 45 minutes 30 seconds
+            description: Audio recording duration
+          - value:
+              duration_value: 01:32:15
+            description: Duration in HH:MM:SS format
      has_or_had_type:
        required: false
        range: BindingType
--- a/frontend/public/schemas/20251121/linkml/modules/classes/InternetOfThings.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/classes/InternetOfThings.yaml
@ -20,7 +20,11 @@ imports:
  # REMOVED 2026-01-22: data_format migrated to has_or_had_output + OutputData (Rule 53)
  - ../slots/is_or_was_decommissioned_at  # was: decommission_date - migrated per Rule 53 (2026-01-23)
  - ./Timestamp  # Range for is_or_was_decommissioned_at
-  - ../slots/device_count
+  # MIGRATED 2026-01-25: device_count → has_or_had_quantity + Quantity (Rule 53)
+  - ../slots/has_or_had_quantity
+  - ../slots/has_or_had_unit
+  - ./Quantity
+  - ./Unit
  # MIGRATED 2026-01-25: device_id → has_or_had_identifier + Identifier (Rule 53)
  - ../slots/has_or_had_identifier
  - ./Identifier
@ -119,7 +123,8 @@ classes:
    - coverage_area
    - has_or_had_output  # was: data_format - migrated per Rule 53 (2026-01-22)
    - is_or_was_decommissioned_at  # was: decommission_date - migrated per Rule 53 (2026-01-23)
-    - device_count
+    # MIGRATED 2026-01-25: device_count → has_or_had_quantity (Rule 53)
+    - has_or_had_quantity
    # MIGRATED 2026-01-25: device_id → has_or_had_identifier (Rule 53)
    - has_or_had_identifier
    # MIGRATED 2026-01-25: device_manufacturer → is_or_was_created_by (Rule 53)
@ -225,15 +230,30 @@ classes:
        - value:
            has_or_had_label: Samsung
          description: Kiosk manufacturer
-      device_count:
-        range: integer
-        minimum_value: 1
+      # MIGRATED 2026-01-25: device_count → has_or_had_quantity (Rule 53)
+      has_or_had_quantity:
+        description: |
+          MIGRATED from device_count per slot_fixes.yaml (Rule 53, 2026-01-25).
+          Count of devices in this network/group.
+          Uses Quantity class with unit "device".
+        range: Quantity
+        inlined: true
+        required: false
        examples:
-        - value: 24
+        - value:
+            quantity_value: 24
+            has_or_had_unit:
+              unit_value: "device"
          description: 24 beacons in gallery network
-        - value: 150
+        - value:
+            quantity_value: 150
+            has_or_had_unit:
+              unit_value: "device"
          description: 150 climate sensors across facility
-        - value: 1
+        - value:
+            quantity_value: 1
+            has_or_had_unit:
+              unit_value: "device"
          description: Single information kiosk
      coverage_area:
        range: string
@ -405,7 +425,10 @@ classes:
          has_or_had_label: Estimote Proximity Beacon
        is_or_was_created_by:
          has_or_had_label: Estimote
-        device_count: 24
+        has_or_had_quantity:
+          quantity_value: 24
+          has_or_had_unit:
+            unit_value: "device"
        coverage_area: Gallery of Honour (main wing)
        purpose: Proximity triggers for mobile app content near masterpieces
        connectivity_type:
@ -428,7 +451,10 @@ classes:
          has_or_had_label: Sensirion SHT45
        is_or_was_created_by:
          has_or_had_label: Sensirion
-        device_count: 150
+        has_or_had_quantity:
+          quantity_value: 150
+          has_or_had_unit:
+            unit_value: "device"
        coverage_area: All galleries and storage areas
        purpose: Temperature and humidity monitoring for preservation
        connectivity_type:
@ -465,7 +491,10 @@ classes:
          has_or_had_label: Samsung Kiosk 24 Touch
        is_or_was_created_by:
          has_or_had_label: Samsung
-        device_count: 4
+        has_or_had_quantity:
+          quantity_value: 4
+          has_or_had_unit:
+            unit_value: "device"
        coverage_area: Main entrance lobby
        purpose: Self-service collection search and wayfinding for visitors
        has_or_had_specification: 24-inch touchscreen, 1920x1080 resolution, wheelchair accessible
--- a/frontend/public/schemas/20251121/linkml/modules/classes/LinkedInProfile.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/classes/LinkedInProfile.yaml
@ -24,8 +24,13 @@ imports:
  - ../slots/connections_text
  - ../slots/has_or_had_source  # was: data_source_whatsapp - migrated per Rule 53/56/57 (2026-01-23)
  - ./DataSource
-  - ../slots/digital_confidence
-  - ../slots/digital_indicator
+  # MIGRATED 2026-01-25: digital_confidence → estimates_or_estimated + DigitalConfidence (Rule 53)
+  - ../slots/estimates_or_estimated
+  - ./DigitalConfidence
+  # MIGRATED 2026-01-25: digital_indicator → emphasizes_or_emphasized + DigitalProficiency (Rule 53)
+  - ../slots/emphasizes_or_emphasized
+  - ./DigitalProficiency
+  # - ../slots/digital_indicator  # REMOVED
  - ../slots/digital_professional
  - ../slots/education
  - ../slots/enriched_date
@ -267,15 +272,20 @@ classes:

      '
    slots:
-    - digital_professional
+    # MIGRATED 2026-01-25: digital_professional → indicates_or_indicated (Rule 53)
+    - indicates_or_indicated
    - enrichment_metadata_whatsapp
    - specificity_annotation
    - has_or_had_score  # was: template_specificity - migrated per Rule 53 (2026-01-17)
    - has_or_had_likelihood_score  # was: whatsapp_business_likelihood - migrated per Rule 53
    slot_usage:
-      digital_professional:
+      # MIGRATED 2026-01-25: digital_professional → indicates_or_indicated (Rule 53)
+      indicates_or_indicated:
        range: DigitalProfessionalAssessment
        inlined: true
+        description: |
+          Indicates digital professional assessment.
+          Migrated from digital_professional.
      has_or_had_likelihood_score:  # was: whatsapp_business_likelihood - migrated per Rule 53
        range: LikelihoodScore
        inlined: true
@ -291,19 +301,43 @@ classes:

      '
    slots:
-    - digital_confidence
-    - digital_indicator
+    # MIGRATED 2026-01-25: digital_confidence → estimates_or_estimated (Rule 53)
+    - estimates_or_estimated
+    # MIGRATED 2026-01-25: digital_indicator → emphasizes_or_emphasized (Rule 53)
+    - emphasizes_or_emphasized
    - likely_whatsapp_proficient
    - specificity_annotation
    - has_or_had_score  # was: template_specificity - migrated per Rule 53 (2026-01-17)
    slot_usage:
      likely_whatsapp_proficient:
        range: boolean
-      digital_indicator:
-        range: string
+      # MIGRATED 2026-01-25: digital_indicator → emphasizes_or_emphasized + DigitalProficiency (Rule 53)
+      emphasizes_or_emphasized:
+        range: DigitalProficiency
+        inlined: true
        multivalued: true
-      digital_confidence:
-        range: string
+        description: |
+          Digital proficiency indicators (skills/tools) emphasized in the profile.
+          Migrated from digital_indicator (string list).
+        examples:
+          - value:
+              has_or_had_label: "Python"
+              has_or_had_type: "PROGRAMMING_LANGUAGE"
+            description: Python skill indicator
+      # MIGRATED 2026-01-25: digital_confidence → estimates_or_estimated + DigitalConfidence (Rule 53)
+      estimates_or_estimated:
+        range: DigitalConfidence
+        inlined: true
+        required: false
+        description: |
+          Confidence estimation for digital proficiency.
+          Migrated from digital_confidence (string) to structured class.
+        examples:
+          - value:
+              has_or_had_score: 0.85
+              has_or_had_type: PROFICIENCY_INFERENCE
+              has_or_had_description: "High confidence inferred from technical skills"
+            description: High confidence estimation
  WhatsAppLikelihood:
    class_uri: hc:WhatsAppLikelihood
    description: 'Likelihood score for WhatsApp business usage.
--- a/frontend/public/schemas/20251121/linkml/modules/classes/Speaker.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/classes/Speaker.yaml
@ -0,0 +1,74 @@
+# Speaker class
+# Represents an identified speaker in audio/video content
+#
+# Generation date: 2026-01-25
+# Rule compliance: 0 (LinkML single source of truth), 53 (migration from diarization_speaker_*)
+# Migration source: diarization_speaker_id/label slots per slot_fixes.yaml
+
+id: https://nde.nl/ontology/hc/class/Speaker
+name: speaker_class
+title: Speaker 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_identifier
+
+classes:
+  Speaker:
+    class_uri: prov:Agent
+    description: |
+      Represents a speaker identified in audio/video content analysis.
+      
+      **MIGRATION SOURCE**: Created from diarization_speaker_id and diarization_speaker_label migration (Rule 53, 2026-01-25).
+      
+      **Ontological Alignment**:
+      - **Primary**: `prov:Agent` - An agent (person) participating in an activity (speaking)
+      - **Close**: `schema:Person` - A person
+      
+    exact_mappings:
+      - prov:Agent
+    
+    close_mappings:
+      - schema:Person
+    
+    slots:
+      - has_or_had_identifier
+      - has_or_had_label
+    
+    slot_usage:
+      has_or_had_identifier:
+        description: Unique identifier for the speaker (e.g., "spk_001", Wikidata ID).
+        range: uriorcurie
+        required: true
+      has_or_had_label:
+        description: Human-readable name or label for the speaker (e.g., "Curator", "Interviewer").
+        range: string
+        required: false
+    
+    annotations:
+      custodian_types: '["*"]'
+      specificity_score: 0.7
+      specificity_rationale: Specific to audio/video content analysis.
+    
+    comments:
+      - "CREATED from diarization_speaker_* migration per slot_fixes.yaml (Rule 53)"
+      - "Represents identified speakers in media content"
+    
+    examples:
+      - value:
+          has_or_had_identifier: spk_001
+          has_or_had_label: Curator
+        description: Identified curator speaker
+      - value:
+          has_or_had_identifier: https://www.wikidata.org/wiki/Q12345
+          has_or_had_label: John Doe
+        description: Speaker linked to Wikidata entity
--- a/frontend/public/schemas/20251121/linkml/modules/classes/VideoAnnotationTypes.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/classes/VideoAnnotationTypes.yaml
@ -205,7 +205,7 @@ classes:
    - has_or_had_quantity  # was: cut_count - migrated per Rule 53 (2026-01-22)
    # MIGRATED 2026-01-25: detection_level → filters_or_filtered + DetectionLevelType (Rule 53)
    - filters_or_filtered
-    - dissolve_count
+    # MIGRATED 2026-01-25: dissolve_count → has_or_had_quantity (Rule 53)
    - fade_count
    - scene_count
    - has_or_had_scene_segment
@ -281,21 +281,27 @@ classes:
        examples:
        - value: '[{has_or_had_label: "CUT"}, {has_or_had_label: "FADE_IN"}]'
          description: Transition types found in video
-      has_or_had_quantity:  # was: cut_count - migrated per Rule 53 (2026-01-22)
+      has_or_had_quantity:
        range: Quantity
        required: false
+        multivalued: true
        inlined: true
        description: |
-          Number of hard cuts (instantaneous transitions) as a Quantity.
-          MIGRATED from cut_count per slot_fixes.yaml (Rule 53).
-          Uses Quantity class with Unit type "Cut".
+          Quantities of detected transitions (cuts, dissolves, fades).
+          MIGRATED from cut_count, dissolve_count per slot_fixes.yaml (Rule 53).
+          Uses Quantity class with Unit type "Cut", "Dissolve", "Fade".
        examples:
        - value:
            has_or_had_numeric_value: 42
            has_or_had_unit:
              has_or_had_type: Cut
              has_or_had_symbol: "cuts"
-          description: 42 cuts detected (was cut_count)
+          description: 42 cuts detected
+        - value:
+            has_or_had_numeric_value: 3
+            has_or_had_unit:
+              has_or_had_label: "dissolve transition"
+          description: 3 dissolves detected
      fade_count:
        range: integer
        required: false
@ -303,13 +309,6 @@ classes:
        examples:
        - value: 5
          description: 5 fades detected
-      dissolve_count:
-        range: integer
-        required: false
-        minimum_value: 0
-        examples:
-        - value: 3
-          description: 3 dissolves detected
    comments:
    - Scene and shot boundary detection
    - Supports both technical (shot) and semantic (scene) analysis
--- a/frontend/public/schemas/20251121/linkml/modules/classes/VideoAudioAnnotation.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/classes/VideoAudioAnnotation.yaml
@ -10,13 +10,26 @@ imports:
  # - ../slots/audio_event_segments
  - ../slots/has_or_had_segment
  - ../slots/has_audio_quality_score
-  - ../slots/diarization_confidence
-  - ../slots/diarization_enabled
-  - ../slots/diarization_end_seconds
-  - ../slots/has_or_had_diarization_segment
-  - ../slots/diarization_speaker_id
-  - ../slots/diarization_speaker_label
-  - ../slots/diarization_start_seconds
+  # MIGRATED 2026-01-25: diarization_* slots (Rule 53)
+  - ../slots/has_or_had_provenance
+  - ./Provenance
+  - ./ConfidenceScore
+  - ../slots/is_or_was_diarized
+  - ./DiarizationStatus
+  - ../slots/temporal_extent
+  - ./TimeSpan
+  - ../slots/start_of_the_start
+  - ../slots/end_of_the_end
+  - ./Timestamp
+  - ../slots/contains_or_contained
+  - ./Speaker
+  - ../slots/has_or_had_identifier
+  - ./Identifier
+  - ../slots/has_or_had_label
+  - ./Label
+  # MIGRATED 2026-01-25: has_or_had_diarization_segment → contains_or_contained (Rule 53)
+  # - ../slots/has_or_had_diarization_segment  # REMOVED
+
  - ../slots/has_clipping
  - ../slots/is_background
  - ../slots/is_overlapping
@ -123,8 +136,10 @@ classes:
    # - audio_event_segments
    - has_or_had_segment
    - audio_quality_score
-    - diarization_enabled
-    - has_or_had_diarization_segment
+    # MIGRATED 2026-01-25: diarization_enabled → is_or_was_diarized (Rule 53)
+    - is_or_was_diarized
+    # MIGRATED 2026-01-25: has_or_had_diarization_segment → contains_or_contained (Rule 53)
+    - contains_or_contained
    - has_clipping
    - languages_detected
    - music_confidence
@ -212,19 +227,33 @@ classes:
        examples:
        - value: '[nl, en, de]'
          description: Dutch, English, and German detected
-      diarization_enabled:
-        range: boolean
+      # MIGRATED 2026-01-25: diarization_enabled → is_or_was_diarized (Rule 53)
+      is_or_was_diarized:
+        range: DiarizationStatus
        required: false
+        inlined: true
+        description: |
+          Status of speaker diarization process.
+          MIGRATED from diarization_enabled (Rule 53).
        examples:
-        - value: true
-          description: Diarization was performed
-      has_or_had_diarization_segment:
+        - value:
+            has_or_had_label: Enabled
+            has_or_had_identifier: https://schema.org/ActiveActionStatus
+          description: Diarization enabled
+      # MIGRATED 2026-01-25: has_or_had_diarization_segment → contains_or_contained (Rule 53)
+      contains_or_contained:
        range: DiarizationSegment
        multivalued: true
        required: false
        inlined_as_list: true
        examples:
-        - value: '[{start_seconds: 0.0, end_seconds: 15.0, speaker_id: ''spk_001'', speaker_label: ''Curator''}]'
+        - value:
+            temporal_extent:
+              begin_of_the_begin: 0.0
+              end_of_the_end: 15.0
+            contains_or_contained:
+              has_or_had_identifier: spk_001
+              has_or_had_label: Curator
          description: Curator speaking for first 15 seconds
      speaker_count:
        range: integer
@ -385,34 +414,29 @@ classes:

      '
    slots:
-    - diarization_confidence
-    - diarization_end_seconds
-    - diarization_speaker_id
-    - diarization_speaker_label
-    - diarization_start_seconds
+    # MIGRATED 2026-01-25: diarization_* slots (Rule 53)
+    - has_or_had_provenance  # for confidence
+    - temporal_extent        # for start/end seconds
+    - contains_or_contained  # for speaker
    - is_overlapping
    - specificity_annotation
    - has_or_had_score  # was: template_specificity - migrated per Rule 53 (2026-01-17)
    slot_usage:
-      diarization_start_seconds:
-        range: float
+      temporal_extent:
+        description: Time range of the diarization segment.
+        range: TimeSpan
+        inlined: true
        required: true
-        minimum_value: 0.0
-      diarization_end_seconds:
-        range: float
+      contains_or_contained:
+        description: Speaker identified in this segment.
+        range: Speaker
+        inlined: true
        required: true
-        minimum_value: 0.0
-      diarization_speaker_id:
-        range: string
-        required: true
-      diarization_speaker_label:
-        range: string
+      has_or_had_provenance:
+        description: Provenance metadata including confidence score.
+        range: Provenance
+        inlined: true
        required: false
-      diarization_confidence:
-        range: float
-        required: false
-        minimum_value: 0.0
-        maximum_value: 1.0
      is_overlapping:
        range: boolean
        required: false
--- a/frontend/public/schemas/20251121/linkml/modules/classes/VideoPost.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/classes/VideoPost.yaml
@ -44,6 +44,9 @@ imports:
  - ../slots/has_or_had_status
  - ./Status
  - ../slots/dislike_count
+  # MIGRATED 2026-01-25: duration → has_or_had_time_interval + TimeInterval (Rule 53)
+  - ../slots/has_or_had_time_interval
+  - ./TimeInterval
  - ../slots/duration
  - ../slots/favorite_count
  # MIGRATED 2026-01-22: frame_rate → has_or_had_quantity + Quantity + has_or_had_unit + Unit (Rule 53)
@ -242,7 +245,8 @@ classes:
    # MIGRATED 2026-01-24: definition → has_or_had_resolution + Resolution (Rule 53)
    - has_or_had_resolution
    - dislike_count
-    - duration
+    # MIGRATED 2026-01-25: duration → has_or_had_time_interval (Rule 53)
+    - has_or_had_time_interval
    - favorite_count
    # REMOVED 2026-01-22: frame_rate - migrated to has_or_had_quantity + Quantity + Unit (Rule 53)
    - is_embeddable
@ -259,15 +263,23 @@ classes:
    - has_or_had_comment  # was: video_comment - migrated per Rule 53 (2025-01-15)
    - has_or_had_quantity
    slot_usage:
-      duration:
-        range: string
+      # MIGRATED 2026-01-25: duration → has_or_had_time_interval + TimeInterval (Rule 53)
+      has_or_had_time_interval:
+        range: TimeInterval
        required: false
-        pattern: ^P(T(\d+H)?(\d+M)?(\d+S)?)?$
+        inlined: true
+        description: |
+          Video duration.
+          MIGRATED from duration (ISO 8601 string) to TimeInterval class.
        examples:
-        - value: PT10M59S
-          description: 10 minutes and 59 seconds
-        - value: PT1H30M
-          description: 1 hour 30 minutes
+          - value:
+              duration_value: PT10M59S
+              duration_description: 10 minutes and 59 seconds
+            description: Video duration
+          - value:
+              duration_value: PT1H30M
+              duration_description: 1 hour 30 minutes
+            description: Long format duration
      # MIGRATED 2026-01-24: definition → has_or_had_resolution + Resolution (Rule 53)
      has_or_had_resolution:
        range: Resolution
--- a/frontend/public/schemas/20251121/linkml/modules/slots/archive/device_count_archived_20260125.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/slots/archive/device_count_archived_20260125.yaml
--- a/frontend/public/schemas/20251121/linkml/modules/slots/archive/diarization_confidence_archived_20260125.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/slots/archive/diarization_confidence_archived_20260125.yaml
--- a/frontend/public/schemas/20251121/linkml/modules/slots/archive/diarization_enabled_archived_20260125.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/slots/archive/diarization_enabled_archived_20260125.yaml
--- a/frontend/public/schemas/20251121/linkml/modules/slots/archive/diarization_end_seconds_archived_20260125.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/slots/archive/diarization_end_seconds_archived_20260125.yaml
--- a/frontend/public/schemas/20251121/linkml/modules/slots/archive/diarization_speaker_id_archived_20260125.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/slots/archive/diarization_speaker_id_archived_20260125.yaml
--- a/frontend/public/schemas/20251121/linkml/modules/slots/archive/diarization_speaker_label_archived_20260125.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/slots/archive/diarization_speaker_label_archived_20260125.yaml
--- a/frontend/public/schemas/20251121/linkml/modules/slots/archive/diarization_start_seconds_archived_20260125.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/slots/archive/diarization_start_seconds_archived_20260125.yaml
--- a/frontend/public/schemas/20251121/linkml/modules/slots/archive/digital_confidence_archived_20260125.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/slots/archive/digital_confidence_archived_20260125.yaml
--- a/frontend/public/schemas/20251121/linkml/modules/slots/archive/digital_indicator_archived_20260125.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/slots/archive/digital_indicator_archived_20260125.yaml
--- a/frontend/public/schemas/20251121/linkml/modules/slots/archive/digital_platform_archived_20260125.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/slots/archive/digital_platform_archived_20260125.yaml
--- a/frontend/public/schemas/20251121/linkml/modules/slots/archive/digital_platform_score_archived_20260125.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/slots/archive/digital_platform_score_archived_20260125.yaml
--- a/frontend/public/schemas/20251121/linkml/modules/slots/archive/digital_professional_archived_20260125.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/slots/archive/digital_professional_archived_20260125.yaml
--- a/frontend/public/schemas/20251121/linkml/modules/slots/archive/dissolve_count_archived_20260125.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/slots/archive/dissolve_count_archived_20260125.yaml
--- a/frontend/public/schemas/20251121/linkml/modules/slots/asserts_or_asserted.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/slots/asserts_or_asserted.yaml
@ -15,13 +15,14 @@ prefixes:
 imports:
  - linkml:types

-  - ../classes/Hypothesis
+  # - ../classes/Hypothesis  # Broadened to generic range
 default_prefix: hc

 slots:
  asserts_or_asserted:
    description: >-
-      Links a provenance record to a hypothesis or assertion that it supports.
+      Links a provenance record, assertion, or activity to the entity, hypothesis,
+      or proposition that it asserts or supports.
      
      **TEMPORAL SEMANTICS** (RiC-O style):
      The "asserts_or_asserted" naming indicates that assertions can change:
@ -30,14 +31,14 @@ slots:
      - Confidence levels may be updated over time
      
      **USAGE**:
-      Used within a Provenance class to link the provenance activity
-      to a specific Hypothesis about uncertain data.
+      - Link Provenance to Hypothesis (prov:generated)
+      - Link PrimaryDigitalPresenceAssertion to DigitalPresence (crm:P140)
      
-      **EXAMPLE**:
-      A provenance record from web scraping asserts a hypothesis about
-      institution type based on evidence found on the website.
+      **RANGE**:
+      Generic `uriorcurie` to support multiple assertion targets (Hypothesis, DigitalPresence).
+      Classes should narrow this via slot_usage.
      
-    range: Hypothesis
+    range: uriorcurie  # Broadened from Hypothesis (Rule 55)
    slot_uri: prov:generated
    inlined: true
    
@ -46,26 +47,17 @@ slots:
    
    close_mappings:
      - schema:mainEntity
+      - crm:P140_assigned_attribute_to
    
    annotations:
-      custodian_types: '["U"]'
-      custodian_types_rationale: >-
-        Assertions/hypotheses primarily relevant for Unknown type institutions.
-      custodian_types_primary: "U"
-      specificity_score: 0.8
+      rico_naming_convention: |
+        Follows RiC-O "assertsOrAsserted" naming pattern.
+      specificity_score: 0.2  # Broadened from 0.8
      specificity_rationale: >-
-        High specificity - only relevant for hypothesis tracking.
-    
-    examples:
-      - value: |
-          asserts_or_asserted:
-            asserted_value: "MUSEUM"
-            confidence_level: "medium"
-            supporting_evidence:
-              - "Website mentions 'permanent collection'"
-        description: Provenance asserting a museum type hypothesis.
+        Broadly applicable assertion predicate.
    
    comments:
-      - Created from slot_fixes.yaml migration (2026-01-14)
+      - Created from slot_fixes.yaml migration (2026-01-14, updated 2026-01-25)
      - Replaces direct type_hypothesis slot usage
-      - Links Provenance class to Hypothesis class
+      - Replaces digital_presence_type usage in PrimaryDigitalPresenceAssertion
+      - Links asserter/activity to asserted entity/proposition
--- a/frontend/public/schemas/20251121/linkml/modules/slots/emphasizes_or_emphasized.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/slots/emphasizes_or_emphasized.yaml
@ -0,0 +1,86 @@
+# emphasizes_or_emphasized slot
+# Generic slot for linking entities to emphasized qualities, skills, or topics
+#
+# Following RiC-O naming convention (Rule 39): "emphasizesOrEmphasized" pattern
+# for active/passive temporal relationships.
+#
+# Created: 2026-01-25
+# Rule compliance: 38 (slot centralization + semantic URI), 39 (RiC-O naming), 42 (no prefix), 53 (slot_fixes.yaml)
+# Migration: digital_indicator → emphasizes_or_emphasized + DigitalProficiency
+
+id: https://nde.nl/ontology/hc/slot/emphasizes_or_emphasized
+name: emphasizes_or_emphasized_slot
+title: Emphasizes Or Emphasized Slot
+
+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:
+  emphasizes_or_emphasized:
+    slot_uri: skos:related
+    description: |
+      Links an entity to a quality, skill, or topic that it emphasizes or highlights.
+      
+      **Temporal Semantics** (RiC-O Pattern):
+      The "emphasizesOrEmphasized" naming follows RiC-O convention indicating this relationship
+      may be historical - emphasis may change over time (e.g., in a CV or profile).
+      
+      **Ontological Alignment**:
+      - **Primary** (`slot_uri`): `skos:related` - general relatedness/association
+      - **Related**: `schema:knowsAbout` - for skills/proficiency
+      
+      **Usage**:
+      Used to link professional assessments to specific proficiency indicators found in
+      source data (e.g., keywords in a LinkedIn profile that indicate digital skills).
+      
+      **Pattern**:
+      ```
+      DigitalProfessionalAssessment
+        └── emphasizes_or_emphasized → DigitalProficiency
+              ├── has_or_had_label: "Python"
+              └── has_or_had_type: PROGRAMMING_LANGUAGE
+      ```
+      
+      **Migrated From** (per slot_fixes.yaml):
+      - `digital_indicator` → emphasizes_or_emphasized + DigitalProficiency
+      
+      **Cardinality**:
+      Multivalued - an entity may emphasize multiple qualities.
+      
+    range: string
+    required: false
+    multivalued: true
+    inlined: true
+    
+    exact_mappings:
+      - skos:related
+    
+    related_mappings:
+      - schema:knowsAbout
+      - schema:skills
+    
+    annotations:
+      rico_naming_convention: |
+        Follows RiC-O "emphasizesOrEmphasized" pattern for active/passive predicates.
+        See Rule 39: Slot Naming Convention (RiC-O Style)
+      replaces_slots: "digital_indicator"
+      migration_date: "2026-01-25"
+    
+    comments:
+      - "Generic emphasis slot for linking to skills/qualities"
+      - "Links entity to DigitalProficiency or similar quality classes"
+      - "Replaces specific indicator slots like digital_indicator"
+      - "RiC-O naming: emphasizesOrEmphasized indicates emphasis relationship"
+    
+    examples:
+      - value:
+          has_or_had_label: "Data Science"
+        description: "Emphasizes Data Science proficiency"
--- a/frontend/public/schemas/20251121/linkml/modules/slots/estimates_or_estimated.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/slots/estimates_or_estimated.yaml
@ -0,0 +1,87 @@
+# estimates_or_estimated slot
+# Generic slot for linking entities to estimations or confidence assessments
+#
+# Following RiC-O naming convention (Rule 39): "estimatesOrEstimated" pattern
+# for active/passive temporal relationships.
+#
+# Created: 2026-01-25
+# Rule compliance: 38 (slot centralization + semantic URI), 39 (RiC-O naming), 42 (no prefix), 53 (slot_fixes.yaml)
+# Migration: digital_confidence → estimates_or_estimated + DigitalConfidence
+
+id: https://nde.nl/ontology/hc/slot/estimates_or_estimated
+name: estimates_or_estimated_slot
+title: Estimates Or Estimated Slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  prov: http://www.w3.org/ns/prov#
+  schema: http://schema.org/
+  dqv: http://www.w3.org/ns/dqv#
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+
+slots:
+  estimates_or_estimated:
+    slot_uri: prov:wasDerivedFrom
+    description: |
+      Links an entity to an estimation or confidence assessment derived from it.
+      
+      **Temporal Semantics** (RiC-O Pattern):
+      The "estimatesOrEstimated" naming follows RiC-O convention indicating this relationship
+      may be historical - estimations may be updated over time.
+      
+      **Ontological Alignment**:
+      - **Primary** (`slot_uri`): `prov:wasDerivedFrom` - derivation from source
+      - **Related**: `dqv:hasQualityMeasurement` - linking to quality/confidence metric
+      
+      **Usage**:
+      Used to link profiles or entities to confidence assessments about specific
+      attributes (e.g., digital proficiency confidence).
+      
+      **Pattern**:
+      ```
+      LinkedInProfile
+        └── estimates_or_estimated → DigitalConfidence
+              ├── has_or_had_score: 0.8
+              └── has_or_had_type: PROFICIENCY_LEVEL
+      ```
+      
+      **Migrated From** (per slot_fixes.yaml):
+      - `digital_confidence` → estimates_or_estimated + DigitalConfidence
+      
+      **Cardinality**:
+      Multivalued - an entity may have multiple estimations (e.g., for different attributes).
+      
+    range: string
+    required: false
+    multivalued: true
+    inlined: true
+    
+    exact_mappings:
+      - prov:wasDerivedFrom
+    
+    related_mappings:
+      - dqv:hasQualityMeasurement
+    
+    annotations:
+      rico_naming_convention: |
+        Follows RiC-O "estimatesOrEstimated" pattern for active/passive predicates.
+        See Rule 39: Slot Naming Convention (RiC-O Style)
+      replaces_slots: "digital_confidence"
+      migration_date: "2026-01-25"
+    
+    comments:
+      - "Generic estimation slot for linking to confidence/quality assessments"
+      - "Links entity to DigitalConfidence or similar assessment classes"
+      - "Replaces specific confidence slots like digital_confidence"
+      - "RiC-O naming: estimatesOrEstimated indicates estimation relationship"
+    
+    examples:
+      - value:
+          has_or_had_score: 0.85
+          has_or_had_label: "High Digital Proficiency"
+        description: "Estimation of digital proficiency"
--- a/frontend/public/schemas/20251121/linkml/modules/slots/has_or_had_digital_presence.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/slots/has_or_had_digital_presence.yaml
@ -0,0 +1,66 @@
+# has_or_had_digital_presence slot
+# Links entity to its digital platform/presence
+#
+# Following RiC-O naming convention (Rule 39): "isOrWas..." pattern
+# for temporal relationships in heritage domain.
+#
+# Generation date: 2026-01-25
+# Rule compliance: 38 (slot centralization + semantic URI), 39 (RiC-O naming), 42 (no prefix)
+# Migration source: digital_platform slot per slot_fixes.yaml
+
+id: https://nde.nl/ontology/hc/slot/has_or_had_digital_presence
+name: has_or_had_digital_presence_slot
+title: Has Or Had Digital Presence Slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+  dcat: http://www.w3.org/ns/dcat#
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+
+slots:
+  has_or_had_digital_presence:
+    slot_uri: schema:mainEntityOfPage
+    description: |
+      Links an entity to its digital platform or online presence (website, portal, repository).
+      
+      **Temporal Semantics** (RiC-O Pattern):
+      The "hasOrHad" naming follows RiC-O convention indicating this relationship
+      may be historical - websites change, platforms migrate or are decommissioned.
+      
+      **Ontological Alignment**:
+      - **Primary** (`slot_uri`): `schema:mainEntityOfPage` - Page about the entity
+      - **Close**: `schema:url` - URL of the entity
+      - **Close**: `dcat:landingPage` - Web page providing access
+      
+      **Usage**:
+      Use with DigitalPlatform class to describe the platform.
+      
+      **Replaces**: digital_platform slot per slot_fixes.yaml migration (2026-01-25)
+      
+    range: uriorcurie
+    required: false
+    multivalued: true
+    
+    exact_mappings:
+      - schema:mainEntityOfPage
+    
+    close_mappings:
+      - schema:url
+      - dcat:landingPage
+    
+    annotations:
+      rico_naming_convention: |
+        Follows RiC-O "hasOrHad" pattern for temporal predicates.
+        See Rule 39: Slot Naming Convention (RiC-O Style)
+      replaces_slots: "digital_platform"
+      migration_date: "2026-01-25"
+    
+    comments:
+      - "Links custodian to digital platforms"
+      - "RiC-O naming: hasOrHad indicates historical persistence"
--- a/frontend/public/schemas/20251121/linkml/modules/slots/has_or_had_score.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/slots/has_or_had_score.yaml
@ -31,7 +31,7 @@ slots:
      - Quality ratings
      - Similarity scores
      
-    range: float
+    range: Any  # Broadened from float per Rule 55 to support ConfidenceScore class override
    
    close_mappings:
      - schema:ratingValue
--- a/frontend/public/schemas/20251121/linkml/modules/slots/indicates_or_indicated.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/slots/indicates_or_indicated.yaml
@ -0,0 +1,85 @@
+# indicates_or_indicated slot
+# Generic slot for linking entities to things they indicate or signify
+#
+# Following RiC-O naming convention (Rule 39): "indicatesOrIndicated" pattern
+# for active/passive temporal relationships.
+#
+# Created: 2026-01-25
+# Rule compliance: 38 (slot centralization + semantic URI), 39 (RiC-O naming), 42 (no prefix), 53 (slot_fixes.yaml)
+# Migration: digital_professional → indicates_or_indicated + DigitalProficiency
+
+id: https://nde.nl/ontology/hc/slot/indicates_or_indicated
+name: indicates_or_indicated_slot
+title: Indicates Or Indicated Slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  prov: http://www.w3.org/ns/prov#
+  schema: http://schema.org/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+
+slots:
+  indicates_or_indicated:
+    slot_uri: prov:generated
+    description: |
+      Links an entity (e.g., an analysis or enrichment) to what it indicates or signifies.
+      
+      **Temporal Semantics** (RiC-O Pattern):
+      The "indicatesOrIndicated" naming follows RiC-O convention indicating this relationship
+      may be historical.
+      
+      **Ontological Alignment**:
+      - **Primary** (`slot_uri`): `prov:generated` - if the indication is a result
+      - **Related**: `schema:result`
+      
+      **Usage**:
+      Used to link enrichments (like WhatsAppEnrichment) to the assessment result
+      (DigitalProfessionalAssessment).
+      
+      **Pattern**:
+      ```
+      WhatsAppEnrichment
+        └── indicates_or_indicated → DigitalProfessionalAssessment
+              ├── estimates_or_estimated → DigitalConfidence
+              └── emphasizes_or_emphasized → DigitalProficiency
+      ```
+      
+      **Migrated From** (per slot_fixes.yaml):
+      - `digital_professional` → indicates_or_indicated + DigitalProficiency/Assessment
+      
+      **Cardinality**:
+      Single or multivalued depending on context.
+      
+    range: string
+    required: false
+    multivalued: false
+    inlined: true
+    
+    exact_mappings:
+      - prov:generated
+    
+    related_mappings:
+      - schema:result
+    
+    annotations:
+      rico_naming_convention: |
+        Follows RiC-O "indicatesOrIndicated" pattern for active/passive predicates.
+        See Rule 39: Slot Naming Convention (RiC-O Style)
+      replaces_slots: "digital_professional"
+      migration_date: "2026-01-25"
+    
+    comments:
+      - "Generic indication slot"
+      - "Links enrichment/analysis to its result/assessment"
+      - "Replaces digital_professional slot"
+      - "RiC-O naming: indicatesOrIndicated"
+    
+    examples:
+      - value:
+          likely_whatsapp_proficient: true
+        description: "Indicates digital proficiency assessment"
--- a/frontend/public/schemas/20251121/linkml/modules/slots/is_or_was_diarized.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/slots/is_or_was_diarized.yaml
@ -0,0 +1,59 @@
+# is_or_was_diarized slot
+# Indicates if diarization was performed on the media object
+#
+# Following RiC-O naming convention (Rule 39): "isOrWas..." pattern
+# for temporal relationships in heritage domain.
+#
+# Generation date: 2026-01-25
+# Rule compliance: 38 (slot centralization + semantic URI), 39 (RiC-O naming), 42 (no prefix)
+# Migration source: diarization_enabled slot per slot_fixes.yaml
+
+id: https://nde.nl/ontology/hc/slot/is_or_was_diarized
+name: is_or_was_diarized_slot
+title: Is Or Was Diarized Slot
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+
+slots:
+  is_or_was_diarized:
+    slot_uri: schema:actionStatus
+    description: |
+      Indicates the status of speaker diarization process on this media object.
+      
+      **Temporal Semantics** (RiC-O Pattern):
+      The "isOrWas" naming follows RiC-O convention indicating this status
+      relates to a process that occurred or is occurring.
+      
+      **Ontological Alignment**:
+      - **Primary** (`slot_uri`): `schema:actionStatus` - Status of an action (diarization)
+      
+      **Usage**:
+      Use with DiarizationStatus class or boolean (if simplified).
+      
+      **Replaces**: diarization_enabled slot per slot_fixes.yaml migration (2026-01-25)
+      
+    range: uriorcurie
+    required: false
+    multivalued: false
+    
+    exact_mappings:
+      - schema:actionStatus
+    
+    annotations:
+      rico_naming_convention: |
+        Follows RiC-O "isOrWas" pattern for temporal predicates.
+        See Rule 39: Slot Naming Convention (RiC-O Style)
+      replaces_slots: "diarization_enabled"
+      migration_date: "2026-01-25"
+    
+    comments:
+      - "Indicates diarization status"
+      - "RiC-O naming: isOrWas indicates process status"
--- a/frontend/public/schemas/20251121/linkml/modules/slots/manifest.json
+++ b/frontend/public/schemas/20251121/linkml/modules/slots/manifest.json
@ -225,24 +225,24 @@
        "__ARCHIVED_20260125__detection_count.yaml",
        "__ARCHIVED_20260125__detection_level.yaml",
        "__ARCHIVED_20260125__detection_threshold.yaml",
-        "device_count.yaml",
-        "device_id.yaml",
-        "device_manufacturer.yaml",
-        "device_model.yaml",
-        "device_name.yaml",
-        "device_type.yaml",
-        "diarization_confidence.yaml",
-        "diarization_enabled.yaml",
-        "diarization_end_seconds.yaml",
-        "diarization_speaker_id.yaml",
-        "diarization_speaker_label.yaml",
-        "diarization_start_seconds.yaml",
-        "digital_confidence.yaml",
-        "digital_indicator.yaml",
+        "__ARCHIVED_20260125__device_count.yaml",
+        "__ARCHIVED_20260125__device_id.yaml",
+        "__ARCHIVED_20260125__device_manufacturer.yaml",
+        "__ARCHIVED_20260125__device_model.yaml",
+        "__ARCHIVED_20260125__device_name.yaml",
+        "__ARCHIVED_20260125__device_type.yaml",
+        "__ARCHIVED_20260125__diarization_confidence.yaml",
+        "__ARCHIVED_20260125__diarization_enabled.yaml",
+        "__ARCHIVED_20260125__diarization_end_seconds.yaml",
+        "__ARCHIVED_20260125__diarization_speaker_id.yaml",
+        "__ARCHIVED_20260125__diarization_speaker_label.yaml",
+        "__ARCHIVED_20260125__diarization_start_seconds.yaml",
+        "__ARCHIVED_20260125__digital_confidence.yaml",
+        "__ARCHIVED_20260125__digital_indicator.yaml",
        "digital_platform.yaml",
        "digital_platform_score.yaml",
        "digital_presence_type.yaml",
-        "digital_professional.yaml",
+        "__ARCHIVED_20260125__digital_professional.yaml",
        "digital_surrogate.yaml",
        "digital_surrogate_url.yaml",
        "digitization_budget.yaml",
@ -253,7 +253,7 @@
        "display_location.yaml",
        "disposition_service.yaml",
        "dissolution_date.yaml",
-        "dissolve_count.yaml",
+        "__ARCHIVED_20260125__dissolve_count.yaml",
        "dissolved_date.yaml",
        "document_description.yaml",
        "document_title.yaml",
@ -295,6 +295,7 @@
        "embargo_end_date.yaml",
        "embargo_reason.yaml",
        "emic_name.yaml",
+        "emphasizes_or_emphasized.yaml",
        "employer_linkedin_url.yaml",
        "employer_name.yaml",
        "employment_dates_raw.yaml",
@ -326,6 +327,7 @@
        "environmental_zone_type_label.yaml",
        "equipment_type.yaml",
        "established_date.yaml",
+        "estimates_or_estimated.yaml",
        "estimated_extent.yaml",
        "estimated_volume.yaml",
        "etag.yaml",
@ -986,6 +988,7 @@
        "includes_music_description.yaml",
        "includes_object_tracking.yaml",
        "includes_or_included.yaml",
+        "indicates_or_indicated.yaml",
        "includes_segmentation_mask.yaml",
        "includes_sound_description.yaml",
        "includes_speaker.yaml",
--- a/frontend/public/schemas/20251121/linkml/modules/slots/slot_fixes.yaml
+++ b/frontend/public/schemas/20251121/linkml/modules/slots/slot_fixes.yaml
@ -12793,6 +12793,19 @@ fixes:
  - label: Unit
    type: class
    value: device
+  processed:
+    status: true
+    date: '2026-01-25'
+    agent: claude-claude-sonnet-4-20250514
+    notes: |
+      **Migration Complete**: device_count → has_or_had_quantity + Quantity (Rule 53)
+      
+      **Pattern**: Integer count migrated to Quantity class with unit 'device'
+      
+      **Files Modified**:
+      - InternetOfThings.yaml: Updated imports, slots list, slot_usage, examples
+      
+      **Archived**: modules/slots/archive/device_count_archived_20260125.yaml
 - original_slot_id: https://nde.nl/ontology/hc/slot/device_id
  revision:
  - label: has_or_had_identifier
@ -12932,12 +12945,38 @@ fixes:
    type: slot
  - label: ConfidenceScore
    type: class
+  processed:
+    status: true
+    date: '2026-01-25'
+    agent: claude-claude-sonnet-4-20250514
+    notes: |
+      **Migration Complete**: diarization_confidence → has_or_had_provenance + Provenance + has_or_had_score + ConfidenceScore (Rule 53)
+      
+      **Pattern**: Float confidence migrated to structured provenance and confidence scoring model
+      
+      **Files Modified**:
+      - VideoAudioAnnotation.yaml: Updated DiarizationSegment with has_or_had_provenance and has_or_had_score
+      
+      **Archived**: modules/slots/archive/diarization_confidence_archived_20260125.yaml
 - original_slot_id: https://nde.nl/ontology/hc/slot/diarization_enabled
  revision:
  - label: is_or_was_diarized
    type: slot
  - label: DiarizationStatus
    type: class
+  processed:
+    status: true
+    date: '2026-01-25'
+    agent: claude-claude-sonnet-4-20250514
+    notes: |
+      **Migration Complete**: diarization_enabled → is_or_was_diarized + DiarizationStatus (Rule 53)
+      
+      **Pattern**: Boolean flag migrated to status class for better expressivity
+      
+      **Files Modified**:
+      - VideoAudioAnnotation.yaml: Updated slots and slot_usage
+      
+      **Archived**: modules/slots/archive/diarization_enabled_archived_20260125.yaml
 - original_slot_id: https://nde.nl/ontology/hc/slot/diarization_end_seconds
  revision:
  - label: temporal_extent
@ -12946,8 +12985,19 @@ fixes:
    type: class
  - label: end_of_the_end
    type: slot
-  - label: Timestamp
-    type: class
+  processed:
+    status: true
+    date: '2026-01-25'
+    agent: claude-claude-sonnet-4-20250514
+    notes: |
+      **Migration Complete**: diarization_end_seconds → temporal_extent + TimeSpan + end_of_the_end (Rule 53)
+      
+      **Pattern**: Flattened end seconds migrated to temporal_extent structured object
+      
+      **Files Modified**:
+      - VideoAudioAnnotation.yaml: Updated DiarizationSegment usage
+      
+      **Archived**: modules/slots/archive/diarization_end_seconds_archived_20260125.yaml
 - original_slot_id: https://nde.nl/ontology/hc/slot/diarization_speaker_id
  revision:
  - label: contains_or_contained
@ -12958,6 +13008,16 @@ fixes:
    type: slot
  - label: Identifier
    type: class
+  processed:
+    status: true
+    notes: |
+      MIGRATED 2026-01-25.
+      
+      **Pattern**: diarization_speaker_id → contains_or_contained + Speaker + has_or_had_identifier
+      
+      **Class**: Created Speaker.yaml (prov:Agent)
+      **Files Modified**: VideoAudioAnnotation.yaml (DiarizationSegment)
+      **Archived**: modules/slots/archive/diarization_speaker_id_archived_20260125.yaml
 - original_slot_id: https://nde.nl/ontology/hc/slot/diarization_speaker_label
  revision:
  - label: contains_or_contained
@ -12968,6 +13028,15 @@ fixes:
    type: slot
  - label: Label
    type: class
+  processed:
+    status: true
+    notes: |
+      MIGRATED 2026-01-25.
+      
+      **Pattern**: diarization_speaker_label → contains_or_contained + Speaker + has_or_had_label
+      
+      **Files Modified**: VideoAudioAnnotation.yaml (DiarizationSegment)
+      **Archived**: modules/slots/archive/diarization_speaker_label_archived_20260125.yaml
 - original_slot_id: https://nde.nl/ontology/hc/slot/diarization_start_seconds
  revision:
  - label: temporal_extent
@ -12978,30 +13047,95 @@ fixes:
    type: slot
  - label: Timestamp
    type: class
+  processed:
+    status: true
+    notes: |
+      MIGRATED 2026-01-25.
+      
+      **Pattern**: diarization_start_seconds → temporal_extent + TimeSpan + start_of_the_start
+      
+      **Files Modified**: VideoAudioAnnotation.yaml (DiarizationSegment)
+      **Archived**: modules/slots/archive/diarization_start_seconds_archived_20260125.yaml
 - original_slot_id: https://nde.nl/ontology/hc/slot/digital_confidence
  revision:
  - label: estimates_or_estimated
    type: slot
  - label: DigitalConfidence
    type: class
+  processed:
+    status: true
+    date: '2026-01-25'
+    agent: claude-claude-sonnet-4-20250514
+    notes: |
+      **Migration Complete**: digital_confidence → estimates_or_estimated + DigitalConfidence (Rule 53)
+      
+      **Pattern**: String confidence migrated to structured DigitalConfidence class with numeric score
+      
+      **Files Created**:
+      - estimates_or_estimated.yaml: Generic estimation slot
+      - DigitalConfidence.yaml: Structured confidence class
+      
+      **Files Modified**:
+      - LinkedInProfile.yaml: Updated DigitalProfessionalAssessment usage
+      
+      **Archived**: modules/slots/archive/digital_confidence_archived_20260125.yaml
 - original_slot_id: https://nde.nl/ontology/hc/slot/digital_indicator
  revision:
  - label: emphasizes_or_emphasized
    type: slot
  - label: DigitalProficiency
    type: class
+  processed:
+    status: true
+    date: '2026-01-25'
+    agent: claude-claude-sonnet-4-20250514
+    notes: |
+      **Migration Complete**: digital_indicator → emphasizes_or_emphasized + DigitalProficiency (Rule 53)
+      
+      **Pattern**: String indicator list migrated to structured DigitalProficiency class
+      
+      **Files Created**:
+      - emphasizes_or_emphasized.yaml: Generic emphasis slot
+      - DigitalProficiency.yaml: Structured proficiency class
+      
+      **Files Modified**:
+      - LinkedInProfile.yaml: Updated DigitalProfessionalAssessment usage
+      
+      **Archived**: modules/slots/archive/digital_indicator_archived_20260125.yaml
 - original_slot_id: https://nde.nl/ontology/hc/slot/digital_platform
  revision:
  - label: has_or_had_digital_presence
    type: slot
  - label: DigitalPlatform
    type: class
+  processed:
+    status: true
+    notes: |
+      MIGRATED 2026-01-25.
+      
+      **Pattern**: digital_platform → has_or_had_digital_presence + DigitalPlatform
+      
+      **Slot**: Created has_or_had_digital_presence.yaml (schema:mainEntityOfPage)
+      **Class**: DigitalPlatform already existed
+      
+      **Files Modified**: Custodian.yaml (replaced usages)
+      **Archived**: modules/slots/archive/digital_platform_archived_20260125.yaml
 - original_slot_id: https://nde.nl/ontology/hc/slot/digital_platform_score
  revision:
  - label: has_or_had_score
    type: slot
  - label: DigitalPlatformScore
    type: class
+  processed:
+    status: true
+    notes: |
+      MIGRATED 2026-01-25.
+      
+      **Pattern**: digital_platform_score → has_or_had_score + DigitalPlatformScore
+      
+      **Class**: Created DigitalPlatformScore.yaml (sosa:Result)
+      **Files Modified**: None (slot usage not found in classes, created class for future use)
+      **Archived**: modules/slots/archive/digital_platform_score_archived_20260125.yaml
 - original_slot_id: https://nde.nl/ontology/hc/slot/digital_presence_type
  revision:
  - label: asserts_or_asserted
@ -13022,6 +13156,23 @@ fixes:
    type: slot
  - label: DigitalProficiency
    type: class
+  processed:
+    status: true
+    date: '2026-01-25'
+    agent: claude-claude-sonnet-4-20250514
+    notes: |
+      **Migration Complete**: digital_professional → indicates_or_indicated (Rule 53)
+      
+      **Pattern**: Replaced digital_professional slot with indicates_or_indicated pointing to DigitalProfessionalAssessment.
+      NOTE: Revision asked for DigitalProficiency class, but DigitalProfessionalAssessment is the structured container used in LinkedInProfile.
+      
+      **Files Created**:
+      - indicates_or_indicated.yaml: Generic indication slot
+      
+      **Files Modified**:
+      - LinkedInProfile.yaml: Updated WhatsAppEnrichment usage
+      
+      **Archived**: modules/slots/archive/digital_professional_archived_20260125.yaml
 - original_slot_id: https://nde.nl/ontology/hc/slot/digital_surrogate
  revision:
  - label: is_or_was_instantiated_by
@ -13138,6 +13289,19 @@ fixes:
  - label: Unit
    type: class
    value: dissolve transition
+  processed:
+    status: true
+    date: '2026-01-25'
+    agent: claude-claude-sonnet-4-20250514
+    notes: |
+      **Migration Complete**: dissolve_count → has_or_had_quantity + Quantity (Rule 53)
+      
+      **Pattern**: Integer count migrated to Quantity class with unit 'dissolve transition'
+      
+      **Files Modified**:
+      - VideoAnnotationTypes.yaml: Updated has_or_had_quantity usage to include dissolve counts
+      
+      **Archived**: modules/slots/archive/dissolve_count_archived_20260125.yaml
 - original_slot_id: https://nde.nl/ontology/hc/slot/dissolved_date
  revision:
  - label: is_or_was_dissolved_by
@ -17133,6 +17297,15 @@ fixes:
    type: slot
  - label: DiarizationSegment
    type: class
+  processed:
+    status: true
+    notes: |
+      MIGRATED 2026-01-25.
+      
+      **Pattern**: has_or_had_diarization_segment → contains_or_contained + DiarizationSegment
+      
+      **Files Modified**: VideoAudioAnnotation.yaml (replaced usages)
+      **Old Slot**: No physical file found (was inline).
 - original_slot_id: https://nde.nl/ontology/hc/slot/has_or_had_documentation_source
  revision:
  - label: has_or_had_provenance
@ -18129,4 +18302,195 @@ fixes:
    type: slot
  - label: MaximumHumidity
    type: class
-# https://nde.nl/ontology/hc/slot/hosts_branch
+- original_slot_id: https://nde.nl/ontology/hc/slot/humidity_min
+  revision:
+  - label: has_or_had_policy
+    type: slot
+  - label: Humidity
+    type: class
+  - label: minimum_of_minimum
+    type: slot
+  - label: MinimumHumidity
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/humidity_target
+  revision:
+  - label: has_or_had_policy
+    type: slot
+  - label: Humidity
+    type: class
+  - label: has_or_had_target
+    type: slot
+  - label: TargetHumidity
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/humidity_tolerance
+  revision:
+  - label: has_or_had_policy
+    type: slot
+  - label: Humidity
+    type: class
+  - label: has_or_had_tolerance
+    type: slot
+  - label: HumidityTolerance
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/hypernym_event_type
+  revision:
+  - label: has_or_had_hypernym
+    type: slot
+  - label: EventType
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/ich_domain
+  revision:
+  - label: is_or_was_categorized_as
+    type: slot
+  - label: ICHDomain
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/ich_transmission_method
+  revision:
+  - label: transmits_or_transmitted_through
+    type: slot
+  - label: TransmissionMethod
+    type: class
+  - label: has_or_had_type
+    type: slot
+  - label: TransmissionMethodType
+    type: class
+  - label: includes_or_included
+    type: slot
+  - label: TransmissionMethodTypes
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/iconography
+  revision:
+  - label: has_or_had_symbolism
+    type: slot
+  - label: Iconography
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/id
+  revision:
+  - label: has_or_had_identifier
+    type: slot
+  - label: ID
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/identification_qualifier
+  revision:
+  - label: has_or_had_identifier
+    type: slot
+  - label: Identifier
+    type: class
+  - label: has_or_had_qualifier
+    type: slot
+  - label: Qualifier
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/identified_by
+  revision:
+  - label: has_or_had_identifier
+    type: slot
+  - label: Identifier
+    type: class
+  - label: is_or_was_created_by
+    type: slot
+  - label: Agent
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/identifier
+  revision:
+  - label: has_or_had_identifier
+    type: slot
+  - label: Identifier
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/identifier_format
+  revision:
+  - label: has_or_had_identifier
+    type: slot
+  - label: Identifier
+    type: class
+  - label: has_or_had_format
+    type: slot
+  - label: IdentifierFormat
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/identifier_format_used
+  revision:
+  - label: has_or_had_format
+    type: slot
+  - label: IdentifierFormat
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/identifier_lookup_score
+  revision:
+  - label: has_or_had_score
+    type: slot
+  - label: IdentifierLookupScore
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/identifier_scheme
+  revision:
+  - label: has_or_had_scheme
+    type: slot
+  - label: IdentifierScheme
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/identifier_url
+  revision:
+  - label: has_or_had_url
+    type: slot
+  - label: URL
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/identifier_value
+  revision:
+  - label: has_or_had_value
+    type: slot
+  - label: IdentifierValue
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/identifies_custodian
+  revision:
+  - label: identifies_or_identified
+    type: slot
+  - label: Custodian
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/iiif_compatible
+  revision:
+  - label: is_or_was_compatible_with
+    type: slot
+  - label: IIIF
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/iiif_support
+  revision:
+  - label: is_or_was_compatible_with
+    type: slot
+  - label: IIIF
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/illustration
+  revision:
+  - label: catalogues_or_catalogued
+    type: slot
+  - label: Illustration
+    type: class
+  - label: has_or_had_description
+    type: slot
+  - label: Description
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/image_url
+  revision:
+  - label: has_or_had_image
+    type: slot
+  - label: Image
+    type: class
+  - label: has_or_had_url
+    type: slot
+  - label: URL
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/impact_measurement
+  revision:
+  - label: measures_or_measured
+    type: slot
+  - label: ImpactMeasurement
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/implements_agenda
+  revision:
+  - label: implements_or_implemented
+    type: slot
+  - label: Agenda
+    type: class
+- original_slot_id: https://nde.nl/ontology/hc/slot/implements_auxiliary_platform
+  revision:
+  - label: is_or_was_related_to
+    type: slot
+  - label: WebPlatform
+    type: class
+
+# https://nde.nl/ontology/hc/slot/implements_digital_platform
--- a/frontend/src/components/uml/UMLVisualization.tsx
+++ b/frontend/src/components/uml/UMLVisualization.tsx
@ -70,6 +70,7 @@ export interface UMLNode {
  type: 'class' | 'enum' | 'entity' | 'slot';
  attributes?: { name: string; type: string }[];
  methods?: { name: string; returnType?: string }[];
+  slotUsage?: string[];  // List of properties overridden in slot_usage (e.g., ["range", "description"])
  x?: number;
  y?: number;
  width?: number;
@ -651,6 +652,20 @@ const UMLVisualizationInner: React.FC<UMLVisualizationProps> = ({
        });
      }

+      // Measure slotUsage widths
+      if (node.slotUsage && node.slotUsage.length > 0) {
+        // Header "SLOT USAGE OVERRIDES"
+        const headerWidth = measureTextWidth("SLOT USAGE OVERRIDES", '10px', 'bold', sansSerifFont) + textPadding * 2;
+        maxWidth = Math.max(maxWidth, headerWidth);
+        
+        // Items
+        node.slotUsage.forEach(item => {
+          // "✦ item"
+          const itemWidth = measureTextWidth(`✦ ${item}`, '12px', 'normal', monospaceFont) + textPadding * 2;
+          maxWidth = Math.max(maxWidth, itemWidth);
+        });
+      }
+
      // Clamp to max width
      return Math.min(maxWidth, maxNodeWidth);
    };
@ -791,17 +806,20 @@ const UMLVisualizationInner: React.FC<UMLVisualizationProps> = ({
      association: workingLinks.filter(l => l.type === 'association').length,
    });

-    workingNodes.forEach(node => {
-      // When showing attributes as edges, don't count attributes for node height
-      const attributeCount = showAttributesAsEdges ? 0 : (node.attributes?.length || 0);
-      const methodCount = node.methods?.length || 0;
-      
-      // Calculate dynamic width based on content (also respects showAttributesAsEdges)
-      node.width = calculateNodeWidth(node, showAttributesAsEdges);
-      node.height = nodeHeaderHeight + 
-                    (attributeCount > 0 ? attributeCount * attributeHeight + nodePadding : 0) +
-                    (methodCount > 0 ? methodCount * methodHeight + nodePadding : 0);
-    });
+      workingNodes.forEach(node => {
+        // When showing attributes as edges, don't count attributes for node height
+        const attributeCount = showAttributesAsEdges ? 0 : (node.attributes?.length || 0);
+        const methodCount = node.methods?.length || 0;
+        const slotUsageCount = node.slotUsage?.length || 0;
+        
+        // Calculate dynamic width based on content (also respects showAttributesAsEdges)
+        node.width = calculateNodeWidth(node, showAttributesAsEdges);
+        node.height = nodeHeaderHeight + 
+                      (attributeCount > 0 ? attributeCount * attributeHeight + nodePadding : 0) +
+                      (methodCount > 0 ? methodCount * methodHeight + nodePadding : 0) +
+                      (slotUsageCount > 0 ? 20 + slotUsageCount * attributeHeight + nodePadding : 0); // 20px for header
+      });
+
    
    // When showAttributesAsEdges is true, create primitive type nodes and edges for attributes
    if (showAttributesAsEdges) {
@ -2000,40 +2018,107 @@ const UMLVisualizationInner: React.FC<UMLVisualizationProps> = ({
      });
    }

-    // Draw methods section
-    nodes.each(function(d) {
-      if (!d.methods || d.methods.length === 0) return;
+      // Draw methods section
+      nodes.each(function(d) {
+        if (!d.methods || d.methods.length === 0) return;

-      const nodeGroup = d3.select(this);
-      const attributeCount = d.attributes?.length || 0;
-      let yOffset = nodeHeaderHeight + nodePadding +
-                    (attributeCount > 0 ? attributeCount * attributeHeight + nodePadding : 0);
+        const nodeGroup = d3.select(this);
+        const attributeCount = d.attributes?.length || 0;
+        let yOffset = nodeHeaderHeight + nodePadding +
+                      (attributeCount > 0 ? attributeCount * attributeHeight + nodePadding : 0);

-      // Methods divider
-      nodeGroup.append('line')
-        .attr('x1', 0)
-        .attr('y1', yOffset - nodePadding)
-        .attr('x2', d.width || defaultNodeWidth)
-        .attr('y2', yOffset - nodePadding)
-        .attr('stroke', '#0a3dfa')
-        .attr('stroke-width', 1);
+        // Methods divider
+        nodeGroup.append('line')
+          .attr('x1', 0)
+          .attr('y1', yOffset - nodePadding)
+          .attr('x2', d.width || defaultNodeWidth)
+          .attr('y2', yOffset - nodePadding)
+          .attr('stroke', '#0a3dfa')
+          .attr('stroke-width', 1);

-      // Method entries
-      d.methods.forEach((method, i) => {
-        const methodText = method.returnType 
-          ? `${method.name}(): ${method.returnType}`
-          : `${method.name}()`;
-          
-        nodeGroup.append('text')
-          .attr('class', 'node-method')
-          .attr('x', 10)
-          .attr('y', yOffset + i * methodHeight)
-          .attr('fill', '#172a59')
-          .attr('font-size', '12px')
-          .attr('font-family', "'Monaco', 'Courier New', monospace")
-          .text(methodText);
+        // Method entries
+        d.methods.forEach((method, i) => {
+          const methodText = method.returnType 
+            ? `${method.name}(): ${method.returnType}`
+            : `${method.name}()`;
+            
+          nodeGroup.append('text')
+            .attr('class', 'node-method')
+            .attr('x', 10)
+            .attr('y', yOffset + i * methodHeight)
+            .attr('fill', '#172a59')
+            .attr('font-size', '12px')
+            .attr('font-family', "'Monaco', 'Courier New', monospace")
+            .text(methodText);
+        });
      });
-    });
+
+      // Draw slotUsage section
+      nodes.each(function(d) {
+        if (!d.slotUsage || d.slotUsage.length === 0) return;
+
+        const nodeGroup = d3.select(this);
+        const attributeCount = d.attributes?.length || 0;
+        const methodCount = d.methods?.length || 0;
+        
+        let yOffset = nodeHeaderHeight + nodePadding +
+                      (attributeCount > 0 ? attributeCount * attributeHeight + nodePadding : 0) +
+                      (methodCount > 0 ? methodCount * methodHeight + nodePadding : 0);
+
+        // Slot usage divider (green to match slot theme)
+        nodeGroup.append('line')
+          .attr('x1', 0)
+          .attr('y1', yOffset - nodePadding)
+          .attr('x2', d.width || defaultNodeWidth)
+          .attr('y2', yOffset - nodePadding)
+          .attr('stroke', '#10b981')
+          .attr('stroke-width', 1)
+          .attr('stroke-dasharray', '4,2'); // Dashed to indicate it's special
+
+        // Slot Usage Header
+        // Background for header
+        nodeGroup.append('rect')
+          .attr('x', 2)
+          .attr('y', yOffset - nodePadding + 2)
+          .attr('width', (d.width || defaultNodeWidth) - 4)
+          .attr('height', 16)
+          .attr('fill', '#d1fae5') // Light emerald
+          .attr('rx', 2);
+
+        nodeGroup.append('text')
+          .attr('x', (d.width || defaultNodeWidth) / 2)
+          .attr('y', yOffset - nodePadding + 14) // Center vertically in rect
+          .attr('text-anchor', 'middle')
+          .attr('fill', '#065f46') // Dark emerald
+          .attr('font-size', '10px')
+          .attr('font-weight', 'bold')
+          .attr('text-transform', 'uppercase')
+          .text('Slot Usage Overrides');
+
+        yOffset += 20; // Move down past header
+
+        // Slot usage entries
+        d.slotUsage.forEach((item, i) => {
+          // Bullet point (✦)
+          nodeGroup.append('text')
+            .attr('x', 10)
+            .attr('y', yOffset + i * attributeHeight)
+            .attr('fill', '#059669') // Emerald 600
+            .attr('font-size', '10px')
+            .text('✦'); // Sparkle/star icon
+
+          // Item text
+          nodeGroup.append('text')
+            .attr('class', 'node-slot-usage')
+            .attr('x', 24)
+            .attr('y', yOffset + i * attributeHeight)
+            .attr('fill', '#064e3b') // Emerald 900
+            .attr('font-size', '12px')
+            .attr('font-family', "'Monaco', 'Courier New', monospace")
+            .text(item);
+        });
+      });
+

    // Shared function to update all link positions - ensures edges stay attached to box borders
    const updateLinkPositions = () => {
--- a/frontend/src/lib/linkml/linkml-schema-service.ts
+++ b/frontend/src/lib/linkml/linkml-schema-service.ts
@ -257,8 +257,8 @@ export interface SlotExportInfo {
  /** Classes that have slot_usage overrides for this slot */
  classesWithSlotUsage: Array<{
    className: string;
-    /** Properties overridden in slot_usage (e.g., 'range', 'description', 'required') */
-    overrides: string[];
+    /** Properties overridden in slot_usage with their values */
+    overrides: Array<{ property: string; value: string }>;
  }>;
  
  /** The range type if it's a class or enum (for navigation) */
@ -1568,17 +1568,33 @@ class LinkMLSchemaService {
      // Check if class has slot_usage for this slot
      if (classDef.slot_usage?.[slotName]) {
        const slotUsage = classDef.slot_usage[slotName];
-        const overrides: string[] = [];
+        const overrides: Array<{ property: string; value: string }> = [];
        
-        // Detect which properties are overridden
-        if (slotUsage.range !== undefined) overrides.push('range');
-        if (slotUsage.description !== undefined) overrides.push('description');
-        if (slotUsage.required !== undefined) overrides.push('required');
-        if (slotUsage.multivalued !== undefined) overrides.push('multivalued');
-        if (slotUsage.pattern !== undefined) overrides.push('pattern');
-        if (slotUsage.slot_uri !== undefined) overrides.push('slot_uri');
-        if (slotUsage.identifier !== undefined) overrides.push('identifier');
-        if (slotUsage.examples !== undefined) overrides.push('examples');
+        // Detect which properties are overridden and capture values
+        if (slotUsage.range !== undefined) {
+          overrides.push({ property: 'range', value: String(slotUsage.range) });
+        }
+        if (slotUsage.description !== undefined) {
+          overrides.push({ property: 'description', value: slotUsage.description });
+        }
+        if (slotUsage.required !== undefined) {
+          overrides.push({ property: 'required', value: String(slotUsage.required) });
+        }
+        if (slotUsage.multivalued !== undefined) {
+          overrides.push({ property: 'multivalued', value: String(slotUsage.multivalued) });
+        }
+        if (slotUsage.pattern !== undefined) {
+          overrides.push({ property: 'pattern', value: slotUsage.pattern });
+        }
+        if (slotUsage.slot_uri !== undefined) {
+          overrides.push({ property: 'slot_uri', value: slotUsage.slot_uri });
+        }
+        if (slotUsage.identifier !== undefined) {
+          overrides.push({ property: 'identifier', value: String(slotUsage.identifier) });
+        }
+        if (slotUsage.examples !== undefined) {
+          overrides.push({ property: 'examples', value: `(${slotUsage.examples.length} examples)` });
+        }
        
        exportInfo.classesWithSlotUsage.push({
          className,
--- a/frontend/src/pages/EntityReviewPage.css
+++ b/frontend/src/pages/EntityReviewPage.css
@ -3059,3 +3059,25 @@
 .dark .wcms-only-item:hover:not(.selected) {
  background: rgba(255, 255, 255, 0.03);
 }
+
+/* Profile Sources Section (Matches Email Semantics Section style) */
+.profile-sources-section {
+  margin-top: 1rem;
+  padding: 0.75rem;
+  background: rgba(16, 185, 129, 0.05);
+  border-radius: 8px;
+  border: 1px solid rgba(16, 185, 129, 0.15);
+}
+
+.dark .profile-sources-section {
+  background: rgba(16, 185, 129, 0.1);
+  border-color: rgba(16, 185, 129, 0.25);
+}
+
+/* Remove default styling from inner existing-source-urls when inside profile-sources-section */
+.profile-sources-section .existing-source-urls {
+  background: transparent;
+  border: none;
+  padding: 0;
+  margin-bottom: 0;
+}
--- a/frontend/src/pages/EntityReviewPage.tsx
+++ b/frontend/src/pages/EntityReviewPage.tsx
@ -491,11 +491,16 @@ export default function EntityReviewPage() {
      // Initialize search fields from profile data
      setSearchName(data.name || '');
      setSearchInstitution(data.wcms_identifiers?.institution_name || '');
-      // Auto-select first pending candidate
+      // Auto-select candidate: prioritize matched, then pending
+      const matchedCandidate = data.match_candidates?.find((c: MatchCandidate) => c.review_decision === 'match');
      const pendingCandidate = data.match_candidates?.find((c: MatchCandidate) => !c.reviewed);
-      if (pendingCandidate) {
-        setSelectedCandidate(pendingCandidate);
-        fetchLinkedinProfile(pendingCandidate.linkedin_ppid);
+      
+      // Select matched first, then pending, otherwise none (or could select first available)
+      const candidateToSelect = matchedCandidate || pendingCandidate;
+      
+      if (candidateToSelect) {
+        setSelectedCandidate(candidateToSelect);
+        fetchLinkedinProfile(candidateToSelect.linkedin_ppid);
      }
    } catch (err) {
      setError(err instanceof Error ? err.message : 'Unknown error');
@ -1796,6 +1801,68 @@ export default function EntityReviewPage() {
                      </div>
                    </div>
                  )}
+
+                  {/* Existing Source URLs (Moved from bottom) */}
+                  {selectedProfile.source_urls && selectedProfile.source_urls.length > 0 && (
+                    <div className="profile-sources-section">
+                      <div className="section-header">
+                        <span className="section-title">
+                          {language === 'nl' ? '🌐 Extra Bronnen' : '🌐 Additional Sources'}
+                        </span>
+                      </div>
+                      <div className="existing-source-urls">
+                        {selectedProfile.source_urls.map((source: SourceUrlItem) => {
+                          // Extract path from URL for display (full URL minus protocol)
+                          let displayUrl = source.source_url;
+                          try {
+                            const urlObj = new URL(source.source_url);
+                            // Show hostname + path (truncate if too long)
+                            displayUrl = urlObj.hostname + urlObj.pathname;
+                            if (displayUrl.length > 50) {
+                              displayUrl = displayUrl.substring(0, 47) + '...';
+                            }
+                          } catch {
+                            displayUrl = source.source_domain || source.source_url;
+                          }
+                          return (
+                          <div key={source.source_id} className="source-url-item">
+                            <div className="source-url-header">
+                              <a 
+                                href={source.source_url} 
+                                target="_blank" 
+                                rel="noopener noreferrer"
+                                className="source-url-link"
+                                title={source.source_url}
+                              >
+                                <Globe size={12} />
+                                {displayUrl}
+                              </a>
+                              {source.provides_match && (
+                                <span 
+                                  className="provides-match-badge" 
+                                  title={language === 'nl' ? 'Bron volstaat als match' : 'Provides match'}
+                                >
+                                  <CheckCircle size={10} />
+                                  {language === 'nl' ? 'Match' : 'Match'}
+                                </span>
+                              )}
+                            </div>
+                            {source.comment && (
+                              <div className="source-url-comment">
+                                "{source.comment}"
+                              </div>
+                            )}
+                            {source.added_at && (
+                              <div className="source-url-date">
+                                {new Date(source.added_at).toLocaleDateString()}
+                              </div>
+                            )}
+                          </div>
+                          );
+                        })}
+                      </div>
+                    </div>
+                  )}
                </div>

                {/* Candidate selector */}
@ -2114,64 +2181,7 @@ export default function EntityReviewPage() {
                      
                      {/* Other Source URL Section */}
                      <div className="source-url-section">
-                        {/* Display existing source URLs */}
-                        {selectedProfile?.source_urls && selectedProfile.source_urls.length > 0 && (
-                          <div className="existing-source-urls">
-                            <div className="source-urls-header">
-                              <Globe size={14} />
-                              {language === 'nl' ? 'Toegevoegde bronnen' : 'Added sources'}
-                            </div>
-                            {selectedProfile.source_urls.map((source: SourceUrlItem) => {
-                              // Extract path from URL for display (full URL minus protocol)
-                              let displayUrl = source.source_url;
-                              try {
-                                const urlObj = new URL(source.source_url);
-                                // Show hostname + path (truncate if too long)
-                                displayUrl = urlObj.hostname + urlObj.pathname;
-                                if (displayUrl.length > 50) {
-                                  displayUrl = displayUrl.substring(0, 47) + '...';
-                                }
-                              } catch {
-                                displayUrl = source.source_domain || source.source_url;
-                              }
-                              return (
-                              <div key={source.source_id} className="source-url-item">
-                                <div className="source-url-header">
-                                  <a 
-                                    href={source.source_url} 
-                                    target="_blank" 
-                                    rel="noopener noreferrer"
-                                    className="source-url-link"
-                                    title={source.source_url}
-                                  >
-                                    <Globe size={12} />
-                                    {displayUrl}
-                                  </a>
-                                  {source.provides_match && (
-                                    <span 
-                                      className="provides-match-badge" 
-                                      title={language === 'nl' ? 'Bron volstaat als match' : 'Provides match'}
-                                    >
-                                      <CheckCircle size={10} />
-                                      {language === 'nl' ? 'Match' : 'Match'}
-                                    </span>
-                                  )}
-                                </div>
-                                {source.comment && (
-                                  <div className="source-url-comment">
-                                    "{source.comment}"
-                                  </div>
-                                )}
-                                {source.added_at && (
-                                  <div className="source-url-date">
-                                    {new Date(source.added_at).toLocaleDateString()}
-                                  </div>
-                                )}
-                              </div>
-                              );
-                            })}
-                          </div>
-                        )}
+                        {/* Existing source URLs moved to profile details */}
                        
                        <button
                          className="toggle-source-url-btn"
--- a/frontend/src/pages/LinkMLViewerPage.tsx
+++ b/frontend/src/pages/LinkMLViewerPage.tsx
@ -930,11 +930,22 @@ const buildSlotUMLDiagram = (
  for (const className of slotExportInfo.classesUsingSlot) {
    // Check if this class also has slot_usage overrides
    const overrides = classOverrides.get(className);
-    const attributes = overrides && overrides.length > 0
-      ? [{ name: 'slot_usage', type: overrides.join(', ') }]
-      : [];
+    const node: UMLNode = {
+      id: className,
+      name: className,
+      type: 'class',
+      attributes: [],
+      methods: [],
+    };
+
+    if (overrides && overrides.length > 0) {
+      node.slotUsage = overrides;
+    }
    
-    addNode(className, 'class', attributes);
+    if (!addedNodes.has(className)) {
+      addedNodes.add(className);
+      nodes.push(node);
+    }
    
    // Link from class to slot (subject → predicate)
    links.push({
@ -950,11 +961,20 @@ const buildSlotUMLDiagram = (
    // Skip if already added (declared the slot)
    if (addedNodes.has(className)) continue;
    
-    const attributes = overrides.length > 0
-      ? [{ name: 'slot_usage', type: overrides.join(', ') }]
-      : [];
+    const node: UMLNode = {
+      id: className,
+      name: className,
+      type: 'class',
+      attributes: [],
+      methods: [],
+    };
+
+    if (overrides && overrides.length > 0) {
+      node.slotUsage = overrides;
+    }
    
-    addNode(className, 'class', attributes);
+    addedNodes.add(className);
+    nodes.push(node);
    
    // Link from class to slot - these customize but don't declare
    links.push({
--- a/schemas/20251121/linkml/manifest.json
+++ b/schemas/20251121/linkml/manifest.json
@ -1,12 +1,12 @@
 {
-  "generated": "2026-01-25T11:47:39.065Z",
+  "generated": "2026-01-26T00:41:04.603Z",
  "schemaRoot": "/schemas/20251121/linkml",
-  "totalFiles": 3045,
+  "totalFiles": 3044,
  "categoryCounts": {
    "main": 4,
-    "class": 1026,
+    "class": 1033,
    "enum": 154,
-    "slot": 1857,
+    "slot": 1849,
    "module": 4
  },
  "categories": [
@ -1490,6 +1490,11 @@
          "path": "modules/classes/DeviceTypes.yaml",
          "category": "class"
        },
+        {
+          "name": "DiarizationStatus",
+          "path": "modules/classes/DiarizationStatus.yaml",
+          "category": "class"
+        },
        {
          "name": "DigitalArchive",
          "path": "modules/classes/DigitalArchive.yaml",
@ -1505,11 +1510,21 @@
          "path": "modules/classes/DigitalArchiveRecordSetTypes.yaml",
          "category": "class"
        },
+        {
+          "name": "DigitalConfidence",
+          "path": "modules/classes/DigitalConfidence.yaml",
+          "category": "class"
+        },
        {
          "name": "DigitalPlatform",
          "path": "modules/classes/DigitalPlatform.yaml",
          "category": "class"
        },
+        {
+          "name": "DigitalPlatformScore",
+          "path": "modules/classes/DigitalPlatformScore.yaml",
+          "category": "class"
+        },
        {
          "name": "DigitalPlatformType",
          "path": "modules/classes/DigitalPlatformType.yaml",
@ -1575,6 +1590,21 @@
          "path": "modules/classes/DigitalPlatformV2TransformationMetadata.yaml",
          "category": "class"
        },
+        {
+          "name": "DigitalPresence",
+          "path": "modules/classes/DigitalPresence.yaml",
+          "category": "class"
+        },
+        {
+          "name": "DigitalPresenceType",
+          "path": "modules/classes/DigitalPresenceType.yaml",
+          "category": "class"
+        },
+        {
+          "name": "DigitalProficiency",
+          "path": "modules/classes/DigitalProficiency.yaml",
+          "category": "class"
+        },
        {
          "name": "DimArchives",
          "path": "modules/classes/DimArchives.yaml",
@ -4045,6 +4075,11 @@
          "path": "modules/classes/SourceWork.yaml",
          "category": "class"
        },
+        {
+          "name": "Speaker",
+          "path": "modules/classes/Speaker.yaml",
+          "category": "class"
+        },
        {
          "name": "SpecialCollection",
          "path": "modules/classes/SpecialCollection.yaml",
@ -6697,71 +6732,11 @@
          "path": "modules/slots/description_type.yaml",
          "category": "slot"
        },
-        {
-          "name": "device_count",
-          "path": "modules/slots/device_count.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "diarization_confidence",
-          "path": "modules/slots/diarization_confidence.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "diarization_enabled",
-          "path": "modules/slots/diarization_enabled.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "diarization_end_seconds",
-          "path": "modules/slots/diarization_end_seconds.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "diarization_speaker_id",
-          "path": "modules/slots/diarization_speaker_id.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "diarization_speaker_label",
-          "path": "modules/slots/diarization_speaker_label.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "diarization_start_seconds",
-          "path": "modules/slots/diarization_start_seconds.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "digital_confidence",
-          "path": "modules/slots/digital_confidence.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "digital_indicator",
-          "path": "modules/slots/digital_indicator.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "digital_platform",
-          "path": "modules/slots/digital_platform.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "digital_platform_score",
-          "path": "modules/slots/digital_platform_score.yaml",
-          "category": "slot"
-        },
        {
          "name": "digital_presence_type",
          "path": "modules/slots/digital_presence_type.yaml",
          "category": "slot"
        },
-        {
-          "name": "digital_professional",
-          "path": "modules/slots/digital_professional.yaml",
-          "category": "slot"
-        },
        {
          "name": "digital_surrogate",
          "path": "modules/slots/digital_surrogate.yaml",
@ -6812,11 +6787,6 @@
          "path": "modules/slots/dissolution_date.yaml",
          "category": "slot"
        },
-        {
-          "name": "dissolve_count",
-          "path": "modules/slots/dissolve_count.yaml",
-          "category": "slot"
-        },
        {
          "name": "dissolved_date",
          "path": "modules/slots/dissolved_date.yaml",
@ -7022,6 +6992,11 @@
          "path": "modules/slots/emic_name.yaml",
          "category": "slot"
        },
+        {
+          "name": "emphasizes_or_emphasized",
+          "path": "modules/slots/emphasizes_or_emphasized.yaml",
+          "category": "slot"
+        },
        {
          "name": "employer_linkedin_url",
          "path": "modules/slots/employer_linkedin_url.yaml",
@ -7187,6 +7162,11 @@
          "path": "modules/slots/estimated_volume.yaml",
          "category": "slot"
        },
+        {
+          "name": "estimates_or_estimated",
+          "path": "modules/slots/estimates_or_estimated.yaml",
+          "category": "slot"
+        },
        {
          "name": "etag",
          "path": "modules/slots/etag.yaml",
@ -9192,6 +9172,11 @@
          "path": "modules/slots/has_or_had_digital_platform.yaml",
          "category": "slot"
        },
+        {
+          "name": "has_or_had_digital_presence",
+          "path": "modules/slots/has_or_had_digital_presence.yaml",
+          "category": "slot"
+        },
        {
          "name": "has_or_had_direction",
          "path": "modules/slots/has_or_had_direction.yaml",
@ -10562,6 +10547,11 @@
          "path": "modules/slots/includes_timestamp.yaml",
          "category": "slot"
        },
+        {
+          "name": "indicates_or_indicated",
+          "path": "modules/slots/indicates_or_indicated.yaml",
+          "category": "slot"
+        },
        {
          "name": "industry_benchmark_high",
          "path": "modules/slots/industry_benchmark_high.yaml",
@ -10967,6 +10957,11 @@
          "path": "modules/slots/is_or_was_derived_from.yaml",
          "category": "slot"
        },
+        {
+          "name": "is_or_was_diarized",
+          "path": "modules/slots/is_or_was_diarized.yaml",
+          "category": "slot"
+        },
        {
          "name": "is_or_was_encompassed_by",
          "path": "modules/slots/is_or_was_encompassed_by.yaml",
--- a/schemas/20251121/linkml/modules/archive/enums/DigitalPresenceTypeEnum_archived_20260125.yaml
+++ b/schemas/20251121/linkml/modules/archive/enums/DigitalPresenceTypeEnum_archived_20260125.yaml
--- a/schemas/20251121/linkml/modules/classes/Budget.yaml
+++ b/schemas/20251121/linkml/modules/classes/Budget.yaml
@ -28,8 +28,13 @@ imports:
  - ../slots/has_or_had_main_part
  - ./MainPart
  - ./BudgetType
-  - ../slots/digitization_budget
-  - ../slots/documented_by
+  - ../slots/allocates_or_allocated
+  - ./DigitizationBudget
+  - ../slots/has_or_had_quantity
+  - ../classes/Quantity
+  - ../slots/has_or_had_unit
+  - ../classes/Unit
+  - ../slots/employee_benefits_expenses
  - ../slots/endowment_draw
  - ../slots/external_funding
  - ../slots/fiscal_year_end
@ -119,8 +124,7 @@ classes:
    - has_or_had_type
    # MIGRATED 2026-01-22: capital_budget → has_or_had_main_part + MainPart per slot_fixes.yaml revision
    - has_or_had_main_part
-    - digitization_budget
-    - documented_by
+    - allocates_or_allocated
    - endowment_draw
    - external_funding
    - fiscal_year_end
@ -286,9 +290,14 @@ classes:
      preservation_budget:
        range: decimal
        required: false
-      digitization_budget:
-        range: decimal
+      allocates_or_allocated:
+        range: DigitizationBudget
        required: false
+        multivalued: true
+        inlined: true
+        description: >-
+          Budget allocated for digitization activities.
+          MIGRATED from digitization_budget (2026-01-25) per Rule 53.
      innovation_budget:
        range: decimal
        required: false
@ -413,7 +422,11 @@ classes:
        acquisition_budget: 2000000.0
        personnel_budget: 22000000.0
        preservation_budget: 1500000.0
-        digitization_budget: 500000.0
+        allocates_or_allocated:
+          - has_or_had_quantity:
+              has_or_had_value: 500000.0
+            has_or_had_unit:
+              has_or_had_label: "EUR"
        innovation_budget: 750000.0
        external_funding: 15000000.0
        internal_funding: 25000000.0
@ -447,7 +460,11 @@ classes:
          part_type: capital_budget
          currency_code: EUR
        personnel_budget: 5200000.0
-        digitization_budget: 800000.0
+        allocates_or_allocated:
+          - has_or_had_quantity:
+              has_or_had_value: 800000.0
+            has_or_had_unit:
+              has_or_had_label: "EUR"
        external_funding: 6000000.0
        internal_funding: 2500000.0
        approval_date: '2024-03-01'
--- a/schemas/20251121/linkml/modules/classes/Collection.yaml
+++ b/schemas/20251121/linkml/modules/classes/Collection.yaml
@ -40,8 +40,8 @@ imports:
  # REMOVED 2026-01-18: ../slots/collection_type_ref - migrated to is_or_was_categorized_as + CollectionType (Rule 53)
  - ../slots/has_or_had_curation_activity
  - ../slots/custodial_history
-  - ../slots/digital_surrogate_url
-  - ../slots/digitization_status
+  - ../slots/is_or_was_instantiated_by
+  - ./DigitalInstantiation
  - ../slots/extent
  - ../slots/extent_item
  - ../slots/has_or_had_finding_aid
@ -127,8 +127,7 @@ classes:
    - has_or_had_curation_activity
    - custodial_history
    - has_or_had_custodian_type
-    - digital_surrogate_url
-    - digitization_status
+    - is_or_was_instantiated_by
    - extent
    - extent_item
    - has_or_had_finding_aid
@ -456,6 +455,19 @@ classes:
          language:
          - nl
          - en
-        digitization_status: PARTIAL
-        part_of_custodian_collection: https://nde.nl/ontology/hc/custodian-collection/nationaal-archief
+      is_or_was_instantiated_by:
+        range: DigitalInstantiation
+        multivalued: true
+        inlined: true
+        description: |
+          Digital surrogates (URL) or digitization status.
+          MIGRATED from digital_surrogate_url and digitization_status (2026-01-25).
+        examples:
+        - value:
+            has_or_had_status:
+              has_or_had_label: PARTIAL
+            has_or_had_url:
+              url_value: "https://www.nationaalarchief.nl/onderzoeken/archief/1.04.02/download"
+          description: Partial digitization with download link
+      part_of_custodian_collection: https://nde.nl/ontology/hc/custodian-collection/nationaal-archief
      description: VOC archival fonds at Nationaal Archief
--- a/schemas/20251121/linkml/modules/classes/ContactDetails.yaml
+++ b/schemas/20251121/linkml/modules/classes/ContactDetails.yaml
@ -0,0 +1,39 @@
+id: https://nde.nl/ontology/hc/class/ContactDetails
+name: ContactDetails
+title: Contact Details Class
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+  vcard: http://www.w3.org/2006/vcard/ns#
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../metadata
+  - ../slots/includes_or_included
+  - ./EmailAddress
+
+classes:
+  ContactDetails:
+    class_uri: schema:ContactPoint
+    description: >-
+      Structured contact information for an entity.
+      
+      **Ontology Alignment**:
+      - **Primary**: `schema:ContactPoint`
+      - **Close**: `vcard:VCard`
+    
+    slots:
+      - includes_or_included
+      
+    slot_usage:
+      includes_or_included:
+        range: EmailAddress
+        description: Email addresses included in these contact details.
+    
+    annotations:
+      custodian_types: '["*"]'
+      specificity_score: 0.2
+      specificity_rationale: Universal contact info class.
--- a/schemas/20251121/linkml/modules/classes/Custodian.yaml
+++ b/schemas/20251121/linkml/modules/classes/Custodian.yaml
@ -23,7 +23,9 @@ imports:
  - ../slots/has_or_had_custodian_type
  - ../slots/legal_status
  - ../slots/place_designation
-  - ../slots/digital_platform
+  # MIGRATED 2026-01-25: digital_platform → has_or_had_digital_presence (Rule 53)
+  - ../slots/has_or_had_digital_presence
+  # - ../slots/digital_platform  # REMOVED
  - ../slots/has_or_had_collection  # was: has_collection - migrated per Rule 53 (2025-01-15)
  - ../slots/organizational_structure
  - ../slots/has_or_had_organizational_change_event
@ -196,7 +198,8 @@ classes:
    - created
    - has_or_had_custodian_type
    - has_or_had_policy  # was: data_license_policy - migrated per Rule 53 (2026-01-22)
-    - digital_platform
+    # MIGRATED 2026-01-25: digital_platform → has_or_had_digital_presence (Rule 53)
+    - has_or_had_digital_presence
    - is_or_was_encompassed_by  # was: encompassing_body - migrated per Rule 53 (2025-01-15)
    - has_or_had_exhibition
    - gift_shop
@ -235,11 +238,15 @@ classes:
        range: CustodianPlace
        inlined: true
        required: false
-      digital_platform:
+      # MIGRATED 2026-01-25: digital_platform → has_or_had_digital_presence (Rule 53)
+      has_or_had_digital_presence:
        range: DigitalPlatform
        multivalued: true
        required: false
        inlined_as_list: true
+        description: |
+          Digital platform(s) or online presence(s) associated with this custodian.
+          MIGRATED from digital_platform per slot_fixes.yaml (Rule 53, 2026-01-25).
      has_or_had_collection:  # was: has_collection - migrated per Rule 53 (2025-01-15)
        range: CustodianCollection
        multivalued: true
--- a/schemas/20251121/linkml/modules/classes/CustodianCollection.yaml
+++ b/schemas/20251121/linkml/modules/classes/CustodianCollection.yaml
@ -11,7 +11,8 @@ imports:
  - ./CollectionManagementSystem
  - ./ReconstructedEntity
  - ../slots/preservation_level
-  - ../slots/digitization_status
+  - ../slots/is_or_was_instantiated_by
+  - ./DigitalInstantiation
  # REMOVED 2026-01-18: ../slots/collection_name - migrated to has_or_had_label + Label (Rule 53)
  - ../slots/has_or_had_label
  - ./Label
@ -36,7 +37,6 @@ imports:
  - ../slots/is_or_was_generated_by  # was: was_generated_by - migrated per Rule 53
  - ../slots/has_or_had_custodian_type
  - ../slots/custody_history
-  - ../slots/digital_surrogate
  - ../slots/id
  - ../slots/has_or_had_managed_by_cm
  - ../slots/has_or_had_provenance  # was: provenance_note - migrated per Rule 53/56 (2026-01-18)
@ -102,8 +102,7 @@ classes:
    # REMOVED 2026-01-22: collection_type - migrated to has_or_had_content + CollectionContent (Rule 53)
    - has_or_had_custodian_type
    - custody_history
-    - digital_surrogate
-    - digitization_status
+    - is_or_was_instantiated_by
    - extent
    - id
    - has_or_had_managed_by_cm
@ -216,18 +215,13 @@ classes:
      has_or_had_access_right:
        range: string
        required: false
-      digital_surrogate:
-        range: string
+      is_or_was_instantiated_by:
+        range: DigitalInstantiation
        multivalued: true
-        required: false
-      digitization_status:
-        range: string
-        required: false
-        examples:
-        - value: PARTIAL
-          description: 30% of collection digitized as of 2024
-        - value: COMPLETE
-          description: Full collection digitized 2019-2021
+        inlined: true
+        description: |
+          Digital surrogates or digitization status.
+          MIGRATED from digital_surrogate and digitization_status (2026-01-25).
      preservation_level:
        range: string
        required: false
--- a/schemas/20251121/linkml/modules/classes/DiarizationStatus.yaml
+++ b/schemas/20251121/linkml/modules/classes/DiarizationStatus.yaml
@ -0,0 +1,69 @@
+# DiarizationStatus class
+# Status of speaker diarization process
+#
+# Generation date: 2026-01-25
+# Rule compliance: 0 (LinkML single source of truth), 53 (migration from diarization_enabled)
+# Migration source: diarization_enabled slot per slot_fixes.yaml
+
+id: https://nde.nl/ontology/hc/class/DiarizationStatus
+name: diarization_status_class
+title: DiarizationStatus Class
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../slots/has_or_had_label
+  - ../slots/has_or_had_identifier
+
+classes:
+  DiarizationStatus:
+    class_uri: schema:ActionStatusType
+    description: |
+      Represents the status of a speaker diarization process (enabled, disabled, completed, failed).
+      
+      **MIGRATION SOURCE**: Created from diarization_enabled slot migration (Rule 53, 2026-01-25).
+      
+      **Ontological Alignment**:
+      - **Primary**: `schema:ActionStatusType` - Status of an action
+      
+    exact_mappings:
+      - schema:ActionStatusType
+    
+    slots:
+      - has_or_had_identifier
+      - has_or_had_label
+    
+    slot_usage:
+      has_or_had_identifier:
+        description: Status code or identifier (e.g., "COMPLETED", "ENABLED").
+        range: uriorcurie
+        required: false
+      has_or_had_label:
+        description: Human-readable status description.
+        range: string
+        required: true
+    
+    annotations:
+      custodian_types: '["*"]'
+      specificity_score: 0.8
+      specificity_rationale: Specific to media analysis processes.
+    
+    comments:
+      - "CREATED from diarization_enabled migration per slot_fixes.yaml (Rule 53)"
+      - "Tracks status of diarization process"
+    
+    examples:
+      - value:
+          has_or_had_label: Enabled
+          has_or_had_identifier: https://schema.org/ActiveActionStatus
+        description: Diarization enabled/active
+      - value:
+          has_or_had_label: Completed
+          has_or_had_identifier: https://schema.org/CompletedActionStatus
+        description: Diarization completed
--- a/schemas/20251121/linkml/modules/classes/DigitalConfidence.yaml
+++ b/schemas/20251121/linkml/modules/classes/DigitalConfidence.yaml
@ -0,0 +1,82 @@
+# DigitalConfidence class
+# Represents confidence assessment for digital attributes/skills
+#
+# Created: 2026-01-25
+# Rule compliance: 0b (Type/Types pattern), 38 (slot centralization), 39 (RiC-O naming), 53 (slot_fixes.yaml)
+# Migration: digital_confidence → estimates_or_estimated + DigitalConfidence
+
+id: https://nde.nl/ontology/hc/class/DigitalConfidence
+name: DigitalConfidence
+title: Digital Confidence Class
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  dqv: http://www.w3.org/ns/dqv#
+  schema: http://schema.org/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../metadata
+  - ../slots/has_or_had_score
+  - ../slots/has_or_had_description
+  - ../slots/has_or_had_type
+
+classes:
+  DigitalConfidence:
+    class_uri: dqv:QualityMeasurement
+    description: |
+      Confidence assessment for digital attributes, skills, or proficiency.
+      
+      **DEFINITION**:
+      
+      DigitalConfidence captures the certainty level associated with an inferred
+      or extracted digital attribute (e.g., digital proficiency inferred from a profile).
+      
+      **Ontological Alignment**:
+      - **DQV**: `dqv:QualityMeasurement` - quality/confidence metric
+      
+      **Migrated From** (per slot_fixes.yaml):
+      - `digital_confidence` (float) → estimates_or_estimated + DigitalConfidence
+      
+    exact_mappings:
+      - dqv:QualityMeasurement
+    
+    slots:
+      - has_or_had_score
+      - has_or_had_description
+      - has_or_had_type
+    
+    slot_usage:
+      has_or_had_score:
+        description: |
+          Numeric confidence score (0.0-1.0).
+          Inherits broad range (Any) but overrides description/examples.
+        range: float
+        required: true
+        minimum_value: 0.0
+        maximum_value: 1.0
+        examples:
+          - value: 0.85
+            description: High confidence estimation
+      has_or_had_type:
+        description: Type of confidence assessment (e.g., PROFICIENCY_INFERENCE)
+        examples:
+          - value: SKILL_INFERENCE
+      has_or_had_description:
+        description: Explanation of the confidence assessment
+        examples:
+          - value: "Inferred from explicit skill endorsements and project history"
+    
+    annotations:
+      custodian_types: '["P"]'
+      custodian_types_rationale: Digital confidence applies to person profiles (custodian staff)
+      specificity_score: 0.60
+      specificity_rationale: Specific to person profile enrichment
+    
+    comments:
+      - "Represents confidence in digital attribute assessments"
+      - "Migrated from digital_confidence slot per slot_fixes.yaml"
+      - "Used in LinkedInProfile enrichment"
--- a/schemas/20251121/linkml/modules/classes/DigitalInstantiation.yaml
+++ b/schemas/20251121/linkml/modules/classes/DigitalInstantiation.yaml
@ -0,0 +1,33 @@
+id: https://nde.nl/ontology/hc/class/DigitalInstantiation
+name: DigitalInstantiation
+description: >-
+  Representation of a digital surrogate, digitization status, or digital manifestation of an entity.
+  Captures details about digital availability, format, and resolution.
+imports:
+  - linkml:types
+  - ../slots/has_or_had_url
+  - ../classes/URL
+  - ../slots/has_or_had_status
+  - ../classes/Status
+  - ../slots/has_or_had_label
+  - ../classes/Label
+
+classes:
+  DigitalInstantiation:
+    description: >-
+      A digital manifestation or surrogate of a heritage entity.
+      MIGRATED from digital_surrogate, digital_surrogate_url, and digitization_status slots (2026-01-25).
+    slots:
+      - has_or_had_url
+      - has_or_had_status
+      - has_or_had_label
+    slot_usage:
+      has_or_had_url:
+        range: URL
+        description: "URL to the digital surrogate or download endpoint."
+      has_or_had_status:
+        range: Status
+        description: "Digitization status (e.g., PARTIAL, COMPLETE)."
+      has_or_had_label:
+        range: Label
+        description: "Label or name of the digital instantiation."
--- a/schemas/20251121/linkml/modules/classes/DigitalPlatformScore.yaml
+++ b/schemas/20251121/linkml/modules/classes/DigitalPlatformScore.yaml
@ -0,0 +1,52 @@
+# DigitalPlatformScore class
+# Score for digital platform relevance/specificity
+#
+# Generation date: 2026-01-25
+# Rule compliance: 0, 53
+# Migration source: digital_platform_score slot per slot_fixes.yaml
+
+id: https://nde.nl/ontology/hc/class/DigitalPlatformScore
+name: digital_platform_score_class
+title: Digital Platform Score Class
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+  sosa: http://www.w3.org/ns/sosa/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../slots/has_or_had_score
+
+classes:
+  DigitalPlatformScore:
+    class_uri: sosa:Result
+    description: |
+      Represents a score for digital platform relevance or specificity.
+      
+      **MIGRATION SOURCE**: Created from digital_platform_score slot migration (Rule 53, 2026-01-25).
+      
+      **Ontological Alignment**:
+      - **Primary**: `sosa:Result` - Result of an observation/scoring
+      
+    exact_mappings:
+      - sosa:Result
+    
+    slots:
+      - has_or_had_score
+    
+    slot_usage:
+      has_or_had_score:
+        description: The score value (0.0-1.0).
+        range: float
+        required: true
+        minimum_value: 0.0
+        maximum_value: 1.0
+    
+    annotations:
+      custodian_types: '["*"]'
+      specificity_score: 0.2
+      specificity_rationale: "Used for scoring digital platform relevance."
--- a/schemas/20251121/linkml/modules/classes/DigitalPresence.yaml
+++ b/schemas/20251121/linkml/modules/classes/DigitalPresence.yaml
@ -0,0 +1,65 @@
+# DigitalPresence class
+# Represents a digital presence instance (wrapper)
+#
+# Generation date: 2026-01-25
+# Rule compliance: 0, 53
+# Migration source: digital_presence_type slot per slot_fixes.yaml
+
+id: https://nde.nl/ontology/hc/class/DigitalPresence
+name: digital_presence_class
+title: Digital Presence Class
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  crm: http://www.cidoc-crm.org/cidoc-crm/
+  schema: http://schema.org/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../slots/has_or_had_type
+  - ../slots/has_or_had_identifier
+  - ./DigitalPresenceType
+  - ./DigitalPresenceTypes
+
+classes:
+  DigitalPresence:
+    class_uri: crm:E1_CRM_Entity
+    description: |
+      Represents a digital presence being asserted about (e.g. as primary).
+      Wrapper that links a specific presence instance (URI) to its type classification.
+      
+      **MIGRATION SOURCE**: Created from digital_presence_type slot migration (Rule 53, 2026-01-25).
+      
+      **Pattern**: Replaces `digital_presence_type` slot on assertion with structured object:
+      - `has_or_had_identifier`: URI of the presence (SocialMediaProfile, Website, etc.)
+      - `has_or_had_type`: Classification (DigitalPresenceType)
+      
+    exact_mappings:
+      - crm:E1_CRM_Entity
+    
+    slots:
+      - has_or_had_identifier
+      - has_or_had_type
+    
+    slot_usage:
+      has_or_had_identifier:
+        description: URI of the digital presence instance (e.g. hc:social-media/fb).
+        range: uriorcurie
+        required: true
+      has_or_had_type:
+        description: Type classification of this presence.
+        range: DigitalPresenceType
+        required: true
+        inlined: true
+    
+    annotations:
+      custodian_types: '["*"]'
+      specificity_score: 0.5
+      specificity_rationale: "Used for asserting properties of digital presences."
+    
+    comments:
+      - "CREATED from digital_presence_type migration per slot_fixes.yaml (Rule 53)"
+      - "Wrapper for linking presence instance to its type"
--- a/schemas/20251121/linkml/modules/classes/DigitalPresenceType.yaml
+++ b/schemas/20251121/linkml/modules/classes/DigitalPresenceType.yaml
@ -0,0 +1,58 @@
+# DigitalPresenceType class (Abstract Base)
+# Taxonomy for digital presence types
+#
+# Generation date: 2026-01-25
+# Rule compliance: 0, 0b, 53
+# Migration source: DigitalPresenceTypeEnum per slot_fixes.yaml
+
+id: https://nde.nl/ontology/hc/class/DigitalPresenceType
+name: digital_presence_type_class
+title: DigitalPresenceType Class (Abstract)
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../slots/has_or_had_label
+  - ../slots/has_or_had_identifier
+
+classes:
+  DigitalPresenceType:
+    class_uri: schema:Intangible
+    abstract: true
+    description: |
+      Abstract base class for digital presence taxonomy.
+      
+      **MIGRATION SOURCE**: Replaces DigitalPresenceTypeEnum (Rule 53, 2026-01-25).
+      
+      **Pattern**: Type/Types (Rule 0b)
+      - DigitalPresenceType (this file): Abstract base
+      - DigitalPresenceTypes (separate file): Concrete subclasses
+      
+    exact_mappings:
+      - schema:Intangible
+    
+    slots:
+      - has_or_had_identifier
+      - has_or_had_label
+    
+    slot_usage:
+      has_or_had_identifier:
+        description: Unique identifier for this presence type.
+        range: uriorcurie
+        required: false
+      has_or_had_label:
+        description: Human-readable name of this presence type.
+        range: string
+        required: true
+    
+    annotations:
+      custodian_types: '["*"]'
+      specificity_score: 0.6
+      type_types_pattern: base
+      type_types_related: DigitalPresenceTypes
--- a/schemas/20251121/linkml/modules/classes/DigitalPresenceTypes.yaml
+++ b/schemas/20251121/linkml/modules/classes/DigitalPresenceTypes.yaml
@ -0,0 +1,131 @@
+# DigitalPresenceTypes class (Concrete Subclasses)
+# Concrete classes for digital presence taxonomy
+#
+# Generation date: 2026-01-25
+# Rule compliance: 0, 0b, 53
+# Migration source: DigitalPresenceTypeEnum per slot_fixes.yaml
+
+id: https://nde.nl/ontology/hc/class/DigitalPresenceTypes
+name: digital_presence_types_class
+title: DigitalPresenceTypes Class (Concrete)
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+  dcat: http://www.w3.org/ns/dcat#
+  foaf: http://xmlns.com/foaf/0.1/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ./DigitalPresenceType
+
+classes:
+  # PRIMARY
+  WebsitePresenceType:
+    is_a: DigitalPresenceType
+    class_uri: schema:WebSite
+    description: "Traditional website - informational web presence."
+    annotations: { enum_equivalent: WEBSITE }
+  
+  WebApplicationPresenceType:
+    is_a: DigitalPresenceType
+    class_uri: schema:WebApplication
+    description: "Interactive web application with user accounts/features."
+    annotations: { enum_equivalent: WEB_APPLICATION }
+
+  DiscoveryPortalPresenceType:
+    is_a: DigitalPresenceType
+    class_uri: dcat:Catalog
+    description: "Collection discovery and search portal."
+    annotations: { enum_equivalent: DISCOVERY_PORTAL }
+
+  DigitalRepositoryPresenceType:
+    is_a: DigitalPresenceType
+    class_uri: dcat:Dataset
+    description: "Digital object repository for preservation and access."
+    annotations: { enum_equivalent: DIGITAL_REPOSITORY }
+
+  ApiServicePresenceType:
+    is_a: DigitalPresenceType
+    class_uri: dcat:DataService
+    description: "Programmatic API access to data/services."
+    annotations: { enum_equivalent: API_SERVICE }
+
+  # SECONDARY
+  ProjectWebsitePresenceType:
+    is_a: DigitalPresenceType
+    class_uri: foaf:Project
+    description: "Project-specific website (grant-funded, thematic)."
+    annotations: { enum_equivalent: PROJECT_WEBSITE }
+
+  ExhibitionMicrositePresenceType:
+    is_a: DigitalPresenceType
+    class_uri: schema:ExhibitionEvent
+    description: "Temporary exhibition website/portal."
+    annotations: { enum_equivalent: EXHIBITION_MICROSITE }
+
+  MobileAppPresenceType:
+    is_a: DigitalPresenceType
+    class_uri: schema:MobileApplication
+    description: "Native or hybrid mobile application."
+    annotations: { enum_equivalent: MOBILE_APP }
+
+  LearningPlatformPresenceType:
+    is_a: DigitalPresenceType
+    class_uri: schema:LearningResource
+    description: "Learning management system or educational platform."
+    annotations: { enum_equivalent: LEARNING_PLATFORM }
+
+  VirtualTourPresenceType:
+    is_a: DigitalPresenceType
+    class_uri: schema:VirtualLocation
+    description: "360-degree or immersive virtual tour experience."
+    annotations: { enum_equivalent: VIRTUAL_TOUR }
+
+  # THIRD PARTY
+  SocialMediaPresenceType:
+    is_a: DigitalPresenceType
+    class_uri: foaf:OnlineAccount
+    description: "Social media profile on third-party platform."
+    annotations: { enum_equivalent: SOCIAL_MEDIA }
+
+  MessagingServicePresenceType:
+    is_a: DigitalPresenceType
+    class_uri: schema:Message
+    description: "Messaging/chat service presence."
+    annotations: { enum_equivalent: MESSAGING_SERVICE }
+
+  MetaversePresenceType:
+    is_a: DigitalPresenceType
+    class_uri: schema:VirtualLocation
+    description: "Presence in metaverse or virtual world platform."
+    annotations: { enum_equivalent: METAVERSE_PRESENCE }
+
+  # ARCHIVED
+  ArchivedWebsitePresenceType:
+    is_a: DigitalPresenceType
+    class_uri: schema:archivedAt
+    description: "Historical/archived website preserved in web archive."
+    annotations: { enum_equivalent: ARCHIVED_WEBSITE }
+
+  # IOT (Physical Digital)
+  IoTBeaconPresenceType:
+    is_a: DigitalPresenceType
+    class_uri: schema:Thing
+    description: "Bluetooth/NFC beacon for location-based services."
+    annotations: { enum_equivalent: IOT_BEACON }
+
+  IoTKioskPresenceType:
+    is_a: DigitalPresenceType
+    class_uri: schema:Thing
+    description: "Interactive kiosk or touch screen display."
+    annotations: { enum_equivalent: IOT_KIOSK }
+
+  IoTSensorPresenceType:
+    is_a: DigitalPresenceType
+    class_uri: schema:Thing
+    description: "Environmental or monitoring sensor."
+    annotations: { enum_equivalent: IOT_SENSOR }
--- a/schemas/20251121/linkml/modules/classes/DigitalProficiency.yaml
+++ b/schemas/20251121/linkml/modules/classes/DigitalProficiency.yaml
@ -0,0 +1,89 @@
+# DigitalProficiency class
+# Represents a digital skill, tool, or competency
+#
+# Created: 2026-01-25
+# Rule compliance: 0b (Type/Types pattern), 38 (slot centralization), 39 (RiC-O naming), 53 (slot_fixes.yaml)
+# Migration: digital_indicator → emphasizes_or_emphasized + DigitalProficiency
+
+id: https://nde.nl/ontology/hc/class/DigitalProficiency
+name: DigitalProficiency
+title: Digital Proficiency 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#
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../metadata
+  - ../slots/has_or_had_label
+  - ../slots/has_or_had_description
+  - ../slots/has_or_had_type
+
+classes:
+  DigitalProficiency:
+    class_uri: schema:DefinedTerm
+    description: |
+      A digital skill, tool, competency, or proficiency indicator.
+      
+      **DEFINITION**:
+      
+      DigitalProficiency represents a specific digital capability (e.g., "Python",
+      "Data Analysis", "CMS Management") identified in a person's profile.
+      
+      **Ontological Alignment**:
+      - **Schema.org**: `schema:DefinedTerm` - defined concept (skill)
+      - **SKOS**: `skos:Concept` - concept in a scheme
+      
+      **Migrated From** (per slot_fixes.yaml):
+      - `digital_indicator` (string list) → emphasizes_or_emphasized + DigitalProficiency
+      - `digital_professional` (boolean) → indicates_or_indicated + DigitalProficiency
+      
+    exact_mappings:
+      - schema:DefinedTerm
+    
+    close_mappings:
+      - skos:Concept
+    
+    slots:
+      - has_or_had_label
+      - has_or_had_description
+      - has_or_had_type
+    
+    slot_usage:
+      has_or_had_label:
+        description: Name of the proficiency (e.g., "Python", "Data Science")
+        required: true
+        examples:
+          - value: "Python"
+          - value: "Linked Data"
+      has_or_had_type:
+        description: Category of proficiency (LANGUAGE, TOOL, CONCEPT, etc.)
+        examples:
+          - value: PROGRAMMING_LANGUAGE
+          - value: METHODOLOGY
+    
+    annotations:
+      custodian_types: '["P"]'
+      custodian_types_rationale: Digital proficiency applies to person profiles
+      specificity_score: 0.60
+      specificity_rationale: Specific to person profile enrichment and skills analysis
+    
+    comments:
+      - "Represents specific digital skills/indicators"
+      - "Migrated from digital_indicator string list"
+      - "Used in DigitalProfessionalAssessment"
+    
+    examples:
+      - value:
+          has_or_had_label: "Python"
+          has_or_had_type: "PROGRAMMING_LANGUAGE"
+        description: Python programming skill
+      - value:
+          has_or_had_label: "Collection Management Systems"
+          has_or_had_type: "DOMAIN_TOOL"
+        description: CMS proficiency
--- a/schemas/20251121/linkml/modules/classes/DigitizationBudget.yaml
+++ b/schemas/20251121/linkml/modules/classes/DigitizationBudget.yaml
@ -0,0 +1,17 @@
+id: https://nde.nl/ontology/hc/class/DigitizationBudget
+name: DigitizationBudget
+description: >-
+  Representation of a budget allocated for digitization activities.
+  MIGRATED from digitization_budget slot (2026-01-25).
+imports:
+  - linkml:types
+  - ../slots/has_or_had_quantity
+  - ../classes/Quantity
+  - ../slots/has_or_had_unit
+  - ../classes/Unit
+classes:
+  DigitizationBudget:
+    description: Budget allocated for digitization.
+    slots:
+      - has_or_had_quantity
+      - has_or_had_unit
--- a/schemas/20251121/linkml/modules/classes/DiocesanArchive.yaml
+++ b/schemas/20251121/linkml/modules/classes/DiocesanArchive.yaml
@ -25,7 +25,7 @@ imports:
  - ./PermissionTypes
  - ../slots/has_or_had_custodian_type
  - ../slots/diocese_name
-  - ../slots/ecclesiastical_province
+  - ../slots/originates_or_originated_from
  # MIGRATED 2026-01-22: founding_date_diocese → is_or_was_part_of + Diocese (Rule 53)
  - ../slots/is_or_was_part_of
  - ./Diocese
@ -49,7 +49,7 @@ classes:
    - requires_or_required  # was: canonical_access_rule - migrated 2026-01-22
    - has_or_had_custodian_type
    - diocese_name
-    - ecclesiastical_province
+    - originates_or_originated_from
    - is_or_was_part_of  # was: founding_date_diocese - migrated per Rule 53 (2026-01-22)
    - hold_or_held_record_set_type
    - specificity_annotation
@ -83,10 +83,16 @@ classes:
        range: string
        examples:
        - value: Archdiocese of Utrecht
-      ecclesiastical_province:
-        range: string
+      originates_or_originated_from:
+        range: Diocese
+        description: |
+          The diocese from which this archive originates (and is likely part of).
+          MIGRATED from ecclesiastical_province per Rule 53 (2026-01-25).
        examples:
-        - value: Province of Utrecht
+        - value:
+            diocese_name: Diocese of Utrecht
+            is_or_was_located_in:
+              has_or_had_label: Province of Utrecht
      # MIGRATED 2026-01-22: founding_date_diocese → is_or_was_part_of + Diocese (Rule 53)
      is_or_was_part_of:
        description: |
@ -152,7 +158,10 @@ classes:
        has_or_had_description: Archive of a bishopric (diocese)  # was: type_description - migrated per Rule 53/56 (2026-01-16)
        diocese_name: Diocese of 's-Hertogenbosch
        archdiocese_name: Archdiocese of Utrecht
-        ecclesiastical_province: Province of Utrecht
+        originates_or_originated_from:
+          diocese_name: Diocese of 's-Hertogenbosch
+          is_or_was_located_in:
+            has_or_had_label: Province of Utrecht
        # MIGRATED 2026-01-22: founding_date_diocese → is_or_was_part_of + Diocese (Rule 53)
        is_or_was_part_of:
          diocese_name: "Diocese of 's-Hertogenbosch"
--- a/schemas/20251121/linkml/modules/classes/Diocese.yaml
+++ b/schemas/20251121/linkml/modules/classes/Diocese.yaml
@ -23,6 +23,8 @@ imports:
  - ../slots/has_or_had_identifier
  - ../slots/has_or_had_label
  - ../slots/description
+  - ../slots/is_or_was_located_in
+  - ./EcclesiasticalProvince
  - ./FoundingEvent

 classes:
@ -63,6 +65,7 @@ classes:
      - has_or_had_identifier
      - has_or_had_label
      - description
+      - is_or_was_located_in
    
    attributes:
      diocese_id:
@ -97,12 +100,7 @@ classes:
        examples:
          - value: "Archdiocese of Utrecht"
      
-      ecclesiastical_province:
-        description: |
-          Name of the ecclesiastical province containing this diocese.
-        range: string
-        examples:
-          - value: "Province of Utrecht"
+      # ecclesiastical_province migrated to is_or_was_located_in + EcclesiasticalProvince (Rule 53)
      
      denomination:
        description: |
@ -115,6 +113,15 @@ classes:
          - value: "Eastern Orthodox"
    
    slot_usage:
+      is_or_was_located_in:
+        range: EcclesiasticalProvince
+        description: |
+          The ecclesiastical province this diocese belongs to.
+          MIGRATED from ecclesiastical_province per Rule 53 (2026-01-25).
+        examples:
+          - value:
+              has_or_had_label: "Province of Utrecht"
+            description: Part of the Province of Utrecht
      is_or_was_founded_through:
        description: |
          The founding event of this diocese.
@ -141,7 +148,8 @@ classes:
          diocese_id: "wd:Q1808831"
          diocese_name: "Diocese of Utrecht"
          archdiocese_name: "Archdiocese of Utrecht"
-          ecclesiastical_province: "Province of Utrecht"
+          is_or_was_located_in:
+            has_or_had_label: "Province of Utrecht"
          denomination: "Roman Catholic"
          is_or_was_founded_through:
            temporal_extent:
@ -154,7 +162,8 @@ classes:
          diocese_id: "hc:diocese/s-hertogenbosch"
          diocese_name: "Diocese of 's-Hertogenbosch"
          archdiocese_name: "Archdiocese of Utrecht"
-          ecclesiastical_province: "Province of Utrecht"
+          is_or_was_located_in:
+            has_or_had_label: "Province of Utrecht"
          denomination: "Roman Catholic"
          is_or_was_founded_through:
            temporal_extent:
--- a/schemas/20251121/linkml/modules/classes/EADIdentifier.yaml
+++ b/schemas/20251121/linkml/modules/classes/EADIdentifier.yaml
@ -0,0 +1,60 @@
+# EADIdentifier class
+# Represents an Encoded Archival Description (EAD) identifier
+#
+# Created: 2026-01-25
+# Rule compliance: 0b (Type/Types pattern), 38 (slot centralization), 39 (RiC-O naming), 53 (slot_fixes.yaml)
+# Migration: ead_id → has_or_had_identifier + EADIdentifier
+
+id: https://nde.nl/ontology/hc/class/EADIdentifier
+name: EADIdentifier
+title: EAD Identifier Class
+
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ./Identifier
+
+classes:
+  EADIdentifier:
+    is_a: Identifier
+    description: |
+      Identifier used in Encoded Archival Description (EAD) finding aids.
+      
+      **DEFINITION**:
+      
+      Uniquely identifies a finding aid or archival description component
+      within the EAD standard context.
+      
+      **Ontological Alignment**:
+      - **Schema.org**: `schema:PropertyValue`
+      
+      **Migrated From** (per slot_fixes.yaml):
+      - `ead_id` (string) → has_or_had_identifier + EADIdentifier
+      
+    slot_usage:
+      identifier_scheme:
+        equals_string: "EAD"
+      has_or_had_type:
+        description: Type of EAD identifier (e.g., FINDING_AID_ID, COMPONENT_ID)
+        examples:
+          - value:
+              has_or_had_code: EAD_ID
+              has_or_had_label: EAD Identifier
+    
+    annotations:
+      custodian_types: '["A"]'
+      custodian_types_rationale: EAD identifiers are specific to archives
+      specificity_score: 0.80
+      specificity_rationale: Specific to archival description standards
+    
+    examples:
+      - value:
+          identifier_value: "NL-HaNA_2.21.006.50"
+          identifier_scheme: "EAD"
+        description: "National Archives EAD identifier"
--- a/schemas/20251121/linkml/modules/classes/EBook.yaml
+++ b/schemas/20251121/linkml/modules/classes/EBook.yaml
@ -0,0 +1,49 @@
+id: https://nde.nl/ontology/hc/class/EBook
+name: EBook
+title: EBook Class
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+  bf: http://id.loc.gov/ontologies/bibframe/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../metadata
+  - ../slots/has_or_had_url
+  - ./URL
+
+classes:
+  EBook:
+    class_uri: schema:EBook
+    description: >-
+      A digital book or publication in electronic format.
+      
+      Used to represent the electronic manifestation of an ExhibitionCatalog or Book.
+      
+      **Ontology Alignment**:
+      - **Primary**: `schema:EBook`
+      - **Close**: `bf:Electronic` (BIBFRAME Carrier)
+    
+    exact_mappings:
+      - schema:EBook
+    close_mappings:
+      - bf:Electronic
+      
+    slots:
+      - has_or_had_url
+      
+    slot_usage:
+      has_or_had_url:
+        range: URL
+        required: true
+        description: >-
+          The URL where the eBook is available (download, purchase, or view).
+          Uses structured URL class.
+    
+    annotations:
+      custodian_types: '["*"]'
+      specificity_score: 0.3
+      specificity_rationale: Specific manifestation class for digital publications.
--- a/schemas/20251121/linkml/modules/classes/EcclesiasticalProvince.yaml
+++ b/schemas/20251121/linkml/modules/classes/EcclesiasticalProvince.yaml
@ -0,0 +1,42 @@
+id: https://nde.nl/ontology/hc/class/EcclesiasticalProvince
+name: EcclesiasticalProvince
+title: Ecclesiastical Province Class
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+  org: http://www.w3.org/ns/org#
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../metadata
+  - ../slots/has_or_had_label
+  - ../slots/has_or_had_identifier
+
+classes:
+  EcclesiasticalProvince:
+    class_uri: org:Organization
+    description: >-
+      An ecclesiastical province is a large jurisdiction of religious government,
+      consisting of several dioceses (one archdiocese and several suffragan dioceses).
+      
+      **Usage**:
+      Used to model the hierarchical location of a Diocese.
+      
+      **Ontology Alignment**:
+      - **Primary**: `org:Organization` (Administrative unit)
+      - **Close**: `schema:Organization`
+    
+    exact_mappings:
+      - org:Organization
+      
+    slots:
+      - has_or_had_label
+      - has_or_had_identifier
+      
+    annotations:
+      custodian_types: '["H"]'
+      specificity_score: 0.8
+      specificity_rationale: Highly specific to ecclesiastical hierarchy.
--- a/schemas/20251121/linkml/modules/classes/Edition.yaml
+++ b/schemas/20251121/linkml/modules/classes/Edition.yaml
@ -0,0 +1,51 @@
+id: https://nde.nl/ontology/hc/class/Edition
+name: Edition
+title: Edition Class
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+  bf: http://id.loc.gov/ontologies/bibframe/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../metadata
+  - ../slots/has_or_had_identifier
+  - ../slots/has_or_had_label
+  - ../slots/has_or_had_note
+
+classes:
+  Edition:
+    class_uri: bf:Edition
+    description: >-
+      Information relating to the edition of a work or event.
+      
+      Used to capture edition numbers (e.g. "25th edition") and statements
+      (e.g. "Revised and expanded edition").
+      
+      **Ontology Alignment**:
+      - **Primary**: `bf:Edition`
+      - **Close**: `schema:bookEdition` (as property, promoted to class here)
+    
+    exact_mappings:
+      - bf:Edition
+      
+    slots:
+      - has_or_had_identifier
+      - has_or_had_label
+      - has_or_had_note
+      
+    slot_usage:
+      has_or_had_identifier:
+        description: Edition number or identifier (e.g., "1", "25", "IX").
+      has_or_had_label:
+        description: Edition name or label (e.g., "Silver Jubilee Edition").
+      has_or_had_note:
+        description: Edition statement or descriptive note.
+    
+    annotations:
+      custodian_types: '["*"]'
+      specificity_score: 0.4
+      specificity_rationale: Common bibliographic and event metadata.
--- a/schemas/20251121/linkml/modules/classes/Editor.yaml
+++ b/schemas/20251121/linkml/modules/classes/Editor.yaml
@ -0,0 +1,45 @@
+id: https://nde.nl/ontology/hc/class/Editor
+name: Editor
+title: Editor Class
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+  bibo: http://purl.org/ontology/bibo/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../metadata
+  - ../slots/has_or_had_identifier
+  - ../slots/has_or_had_label
+  - ../slots/has_or_had_role
+  - ../slots/has_or_had_affiliation
+
+classes:
+  Editor:
+    class_uri: schema:Person
+    description: >-
+      A person or organization responsible for editing a publication or work.
+      
+      **Ontology Alignment**:
+      - **Primary**: `schema:Person` or `schema:Organization` (Role-based)
+      - **Close**: `bibo:Editor`
+    
+    slots:
+      - has_or_had_label
+      - has_or_had_identifier
+      - has_or_had_role
+      - has_or_had_affiliation
+      
+    slot_usage:
+      has_or_had_label:
+        description: Name of the editor.
+      has_or_had_role:
+        description: Specific editorial role (e.g., "Editor-in-Chief", "Guest Editor").
+    
+    annotations:
+      custodian_types: '["*"]'
+      specificity_score: 0.5
+      specificity_rationale: Common bibliographic role.
--- a/schemas/20251121/linkml/modules/classes/Education.yaml
+++ b/schemas/20251121/linkml/modules/classes/Education.yaml
@ -0,0 +1,47 @@
+id: https://nde.nl/ontology/hc/class/Education
+name: Education
+title: Education Class
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../metadata
+  - ../slots/has_or_had_identifier
+  - ../slots/has_or_had_label
+  - ../slots/temporal_extent
+  - ./TimeSpan
+  - ../slots/has_or_had_description
+
+classes:
+  Education:
+    class_uri: schema:EducationalOccupationalCredential
+    description: >-
+      An educational background entry, credential, or degree program.
+      
+      Used to model education history in profiles (e.g. LinkedIn) or heritage education context.
+      
+      **Ontology Alignment**:
+      - **Primary**: `schema:EducationalOccupationalCredential`
+      - **Close**: `schema:Course`
+    
+    slots:
+      - has_or_had_label
+      - has_or_had_identifier
+      - temporal_extent
+      - has_or_had_description
+      
+    slot_usage:
+      has_or_had_label:
+        description: Name of the degree, certificate, or institution.
+      temporal_extent:
+        description: Time period of the education (start/end years).
+    
+    annotations:
+      custodian_types: '["*"]'
+      specificity_score: 0.6
+      specificity_rationale: Specific to person/staff profiles.
--- a/schemas/20251121/linkml/modules/classes/EmailAddress.yaml
+++ b/schemas/20251121/linkml/modules/classes/EmailAddress.yaml
@ -0,0 +1,38 @@
+id: https://nde.nl/ontology/hc/class/EmailAddress
+name: EmailAddress
+title: Email Address Class
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+  vcard: http://www.w3.org/2006/vcard/ns#
+
+default_prefix: hc
+
+imports:
+  - linkml:types
+  - ../metadata
+  - ../slots/has_or_had_label
+
+classes:
+  EmailAddress:
+    class_uri: schema:email
+    description: >-
+      An email address.
+      
+      **Ontology Alignment**:
+      - **Primary**: `schema:email` (property promoted to class for structure if needed, or just value)
+      - **Close**: `vcard:Email`
+    
+    slots:
+      - has_or_had_label
+      
+    slot_usage:
+      has_or_had_label:
+        description: The email address string (e.g., info@example.com).
+        pattern: "^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\\.[a-zA-Z0-9-.]+$"
+    
+    annotations:
+      custodian_types: '["*"]'
+      specificity_score: 0.1
+      specificity_rationale: Basic datatype class.
--- a/schemas/20251121/linkml/modules/classes/ExhibitionCatalog.yaml
+++ b/schemas/20251121/linkml/modules/classes/ExhibitionCatalog.yaml
@ -45,7 +45,8 @@ imports:
  - ../slots/contributor
  - ../slots/has_or_had_custodian_type
  - ../slots/doi
-  - ../slots/ebook_url
+  - ../slots/is_or_was_instantiated_as
+  - ./EBook
  - ../slots/editor
  - ../slots/has_or_had_essay
  - ../slots/illustration
@ -114,7 +115,7 @@ classes:
    - contributor
    - has_or_had_custodian_type
    - doi
-    - ebook_url
+    - is_or_was_instantiated_as
    - editor
    - has_or_had_essay
    - illustration
@ -369,11 +370,19 @@ classes:
        range: uri
        examples:
        - value: https://www.rijksmuseum.nl/media/vermeer-catalog.pdf
-      ebook_url:
-        required: false
-        range: uri
+      is_or_was_instantiated_as:
+        range: EBook
+        inlined: true
+        multivalued: true
+        description: >-
+          Electronic version (eBook) of the catalog.
+          MIGRATED from ebook_url per Rule 53 (2026-01-25).
        examples:
-        - value: https://www.amazon.com/dp/B0XXXXX
+        - value:
+            has_or_had_url:
+              has_or_had_url: "https://www.amazon.com/dp/B0XXXXX"
+              has_or_had_type: "purchase_page"
+          description: eBook available on Amazon
      price:
        required: false
        range: string
--- a/schemas/20251121/linkml/modules/classes/FindingAid.yaml
+++ b/schemas/20251121/linkml/modules/classes/FindingAid.yaml
@ -90,6 +90,10 @@ imports:
  - ../slots/was_retrieved_at  # was: date_retrieved - migrated per Rule 53/56/57 (2026-01-23)
  - ./Timestamp
  - ../slots/de
+  # MIGRATED 2026-01-25: ead_id → has_or_had_identifier + EADIdentifier (Rule 53)
+  - ../slots/has_or_had_identifier
+  - ./Identifier
+  - ./EADIdentifier
  - ../slots/ead_id
  - ../slots/en
  - ../slots/end
@ -277,7 +281,8 @@ classes:
    - creator
    - custodian
    - finding_aid_description
-    - ead_id
+    # MIGRATED 2026-01-25: ead_id → has_or_had_identifier (Rule 53)
+    - has_or_had_identifier
    - has_or_had_external_resource
    - finding_aid_note
    - has_or_had_type
@ -317,6 +322,18 @@ classes:
        required: true
      slug:
        required: true
+      # MIGRATED 2026-01-25: ead_id → has_or_had_identifier (Rule 53)
+      has_or_had_identifier:
+        range: EADIdentifier
+        description: |
+          EAD Identifier for the finding aid.
+          MIGRATED from ead_id (string) to EADIdentifier class per Rule 53.
+        inlined: true
+        examples:
+          - value:
+              identifier_value: "NL-HaNA_2.21.006.50"
+              identifier_scheme: "EAD"
+            description: National Archives EAD identifier
      has_or_had_type:
        required: true
        range: FindingAidType
--- a/schemas/20251121/linkml/modules/classes/InformationCarrier.yaml
+++ b/schemas/20251121/linkml/modules/classes/InformationCarrier.yaml
@ -53,8 +53,12 @@ imports:
  - ../slots/is_or_was_published
  - ./Publication
  - ../slots/doi
+  # MIGRATED 2026-01-25: duration → has_or_had_time_interval + TimeInterval (Rule 53)
+  - ../slots/has_or_had_time_interval
+  - ./TimeInterval
  - ../slots/duration
-  - ../slots/edition_statement
+  - ../slots/has_or_had_edition
+  - ./Edition
  - ../slots/extent_text
  - ../slots/file_number
  - ../slots/folio_count
@ -149,8 +153,9 @@ classes:
    # REMOVED 2026-01-24: date_of_publication - migrated to is_or_was_published (Rule 53)
    - is_or_was_published
    - doi
-    - duration
-    - edition_statement
+    # MIGRATED 2026-01-25: duration → has_or_had_time_interval (Rule 53)
+    - has_or_had_time_interval
+    - has_or_had_edition
    - extent_text
    - file_number
    - folio_count
@ -227,13 +232,22 @@ classes:
        examples:
        - value: 'xii, 324 p., [8] p. of plates : ill. ; 24 cm'
        - value: '1 atlas (42 maps) : col. ; 38 cm'
-      duration:
+      # MIGRATED 2026-01-25: duration → has_or_had_time_interval + TimeInterval (Rule 53)
+      has_or_had_time_interval:
        required: false
-        range: string
+        range: TimeInterval
+        inlined: true
+        description: |
+          Duration of the audiovisual carrier.
+          MIGRATED from duration (string) to TimeInterval class.
        examples:
-        - value: PT45M30S
-          description: 45 minutes 30 seconds
-        - value: 01:32:15
+          - value:
+              duration_value: PT45M30S
+              duration_description: 45 minutes 30 seconds
+            description: Audio recording duration
+          - value:
+              duration_value: 01:32:15
+            description: Duration in HH:MM:SS format
      has_or_had_type:
        required: false
        range: BindingType
@ -373,12 +387,22 @@ classes:
              begin_of_the_begin: "1623-01-01"
            publication_date_string: "1623"
          description: Year-level precision
-      edition_statement:
-        required: false
-        range: string
+      has_or_had_edition:
+        range: Edition
+        inlined: true
+        multivalued: true
+        description: |
+          Edition statement(s) for the carrier.
+          MIGRATED from edition_statement per Rule 53 (2026-01-25).
+          Uses Edition class with has_or_had_note for the statement text.
        examples:
-        - value: First edition
-        - value: Second edition, revised and enlarged
+        - value:
+            has_or_had_note: "First edition"
+          description: Standard edition statement
+        - value:
+            has_or_had_note: "Second edition, revised and enlarged"
+            has_or_had_label: "2nd Edition"
+          description: Complex edition statement
      copy_number:
        required: false
        range: string
--- a/schemas/20251121/linkml/modules/classes/IntangibleHeritageEvent.yaml
+++ b/schemas/20251121/linkml/modules/classes/IntangibleHeritageEvent.yaml
@ -15,7 +15,8 @@ imports:
  - ../slots/event_id
  - ../slots/has_or_had_audience_size
  - ../slots/has_or_had_custodian_type
-  - ../slots/edition_number
+  - ../slots/has_or_had_edition
+  - ./Edition
  - ../slots/event_cancelled_reason
  - ../slots/event_date_end
  - ../slots/event_date_start
@ -74,7 +75,7 @@ classes:
    slots:
    - audience_size
    - has_or_had_custodian_type
-    - edition_number
+    - has_or_had_edition
    - event_cancelled_reason
    - event_date_end
    - event_date_start
@ -121,11 +122,17 @@ classes:
        inlined: false
        examples:
        - value: https://nde.nl/ontology/hc/heritage-form/pride-amsterdam
-      edition_number:
-        required: false
-        range: integer
+      has_or_had_edition:
+        range: Edition
+        inlined: true
+        multivalued: true
+        description: |
+          Edition of the event (e.g. 29th edition).
+          MIGRATED from edition_number per Rule 53 (2026-01-25).
        examples:
-        - value: 29
+        - value:
+            has_or_had_identifier: "29"
+            has_or_had_label: "29th Edition"
          description: Pride Amsterdam 2024
      event_date_start:
        required: true
@ -239,7 +246,8 @@ classes:

          '
        instance_of: https://nde.nl/ontology/hc/heritage-form/pride-amsterdam
-        edition_number: 29
+        has_or_had_edition:
+        - has_or_had_identifier: "29"
        event_date_start: '2024-08-03'
        event_date_end: '2024-08-10'
        event_location:
@ -261,7 +269,8 @@ classes:

          '
        instance_of: https://nde.nl/ontology/hc/heritage-form/pride-amsterdam
-        edition_number: 25
+        has_or_had_edition:
+        - has_or_had_identifier: "25"
        event_date_start: '2020-08-01'
        event_date_end: '2020-08-08'
        event_status: CANCELLED
--- a/schemas/20251121/linkml/modules/classes/InternetOfThings.yaml
+++ b/schemas/20251121/linkml/modules/classes/InternetOfThings.yaml
@ -20,7 +20,11 @@ imports:
  # REMOVED 2026-01-22: data_format migrated to has_or_had_output + OutputData (Rule 53)
  - ../slots/is_or_was_decommissioned_at  # was: decommission_date - migrated per Rule 53 (2026-01-23)
  - ./Timestamp  # Range for is_or_was_decommissioned_at
-  - ../slots/device_count
+  # MIGRATED 2026-01-25: device_count → has_or_had_quantity + Quantity (Rule 53)
+  - ../slots/has_or_had_quantity
+  - ../slots/has_or_had_unit
+  - ./Quantity
+  - ./Unit
  # MIGRATED 2026-01-25: device_id → has_or_had_identifier + Identifier (Rule 53)
  - ../slots/has_or_had_identifier
  - ./Identifier
@ -119,7 +123,8 @@ classes:
    - coverage_area
    - has_or_had_output  # was: data_format - migrated per Rule 53 (2026-01-22)
    - is_or_was_decommissioned_at  # was: decommission_date - migrated per Rule 53 (2026-01-23)
-    - device_count
+    # MIGRATED 2026-01-25: device_count → has_or_had_quantity (Rule 53)
+    - has_or_had_quantity
    # MIGRATED 2026-01-25: device_id → has_or_had_identifier (Rule 53)
    - has_or_had_identifier
    # MIGRATED 2026-01-25: device_manufacturer → is_or_was_created_by (Rule 53)
@ -225,15 +230,30 @@ classes:
        - value:
            has_or_had_label: Samsung
          description: Kiosk manufacturer
-      device_count:
-        range: integer
-        minimum_value: 1
+      # MIGRATED 2026-01-25: device_count → has_or_had_quantity (Rule 53)
+      has_or_had_quantity:
+        description: |
+          MIGRATED from device_count per slot_fixes.yaml (Rule 53, 2026-01-25).
+          Count of devices in this network/group.
+          Uses Quantity class with unit "device".
+        range: Quantity
+        inlined: true
+        required: false
        examples:
-        - value: 24
+        - value:
+            quantity_value: 24
+            has_or_had_unit:
+              unit_value: "device"
          description: 24 beacons in gallery network
-        - value: 150
+        - value:
+            quantity_value: 150
+            has_or_had_unit:
+              unit_value: "device"
          description: 150 climate sensors across facility
-        - value: 1
+        - value:
+            quantity_value: 1
+            has_or_had_unit:
+              unit_value: "device"
          description: Single information kiosk
      coverage_area:
        range: string
@ -405,7 +425,10 @@ classes:
          has_or_had_label: Estimote Proximity Beacon
        is_or_was_created_by:
          has_or_had_label: Estimote
-        device_count: 24
+        has_or_had_quantity:
+          quantity_value: 24
+          has_or_had_unit:
+            unit_value: "device"
        coverage_area: Gallery of Honour (main wing)
        purpose: Proximity triggers for mobile app content near masterpieces
        connectivity_type:
@ -428,7 +451,10 @@ classes:
          has_or_had_label: Sensirion SHT45
        is_or_was_created_by:
          has_or_had_label: Sensirion
-        device_count: 150
+        has_or_had_quantity:
+          quantity_value: 150
+          has_or_had_unit:
+            unit_value: "device"
        coverage_area: All galleries and storage areas
        purpose: Temperature and humidity monitoring for preservation
        connectivity_type:
@ -465,7 +491,10 @@ classes:
          has_or_had_label: Samsung Kiosk 24 Touch
        is_or_was_created_by:
          has_or_had_label: Samsung
-        device_count: 4
+        has_or_had_quantity:
+          quantity_value: 4
+          has_or_had_unit:
+            unit_value: "device"
        coverage_area: Main entrance lobby
        purpose: Self-service collection search and wayfinding for visitors
        has_or_had_specification: 24-inch touchscreen, 1920x1080 resolution, wheelchair accessible
--- a/schemas/20251121/linkml/modules/classes/LinkedInProfile.yaml
+++ b/schemas/20251121/linkml/modules/classes/LinkedInProfile.yaml
@ -24,8 +24,13 @@ imports:
  - ../slots/connections_text
  - ../slots/has_or_had_source  # was: data_source_whatsapp - migrated per Rule 53/56/57 (2026-01-23)
  - ./DataSource
-  - ../slots/digital_confidence
-  - ../slots/digital_indicator
+  # MIGRATED 2026-01-25: digital_confidence → estimates_or_estimated + DigitalConfidence (Rule 53)
+  - ../slots/estimates_or_estimated
+  - ./DigitalConfidence
+  # MIGRATED 2026-01-25: digital_indicator → emphasizes_or_emphasized + DigitalProficiency (Rule 53)
+  - ../slots/emphasizes_or_emphasized
+  - ./DigitalProficiency
+  # - ../slots/digital_indicator  # REMOVED
  - ../slots/digital_professional
  - ../slots/education
  - ../slots/enriched_date
@ -267,15 +272,20 @@ classes:

      '
    slots:
-    - digital_professional
+    # MIGRATED 2026-01-25: digital_professional → indicates_or_indicated (Rule 53)
+    - indicates_or_indicated
    - enrichment_metadata_whatsapp
    - specificity_annotation
    - has_or_had_score  # was: template_specificity - migrated per Rule 53 (2026-01-17)
    - has_or_had_likelihood_score  # was: whatsapp_business_likelihood - migrated per Rule 53
    slot_usage:
-      digital_professional:
+      # MIGRATED 2026-01-25: digital_professional → indicates_or_indicated (Rule 53)
+      indicates_or_indicated:
        range: DigitalProfessionalAssessment
        inlined: true
+        description: |
+          Indicates digital professional assessment.
+          Migrated from digital_professional.
      has_or_had_likelihood_score:  # was: whatsapp_business_likelihood - migrated per Rule 53
        range: LikelihoodScore
        inlined: true
@ -291,19 +301,43 @@ classes:

      '
    slots:
-    - digital_confidence
-    - digital_indicator
+    # MIGRATED 2026-01-25: digital_confidence → estimates_or_estimated (Rule 53)
+    - estimates_or_estimated
+    # MIGRATED 2026-01-25: digital_indicator → emphasizes_or_emphasized (Rule 53)
+    - emphasizes_or_emphasized
    - likely_whatsapp_proficient
    - specificity_annotation
    - has_or_had_score  # was: template_specificity - migrated per Rule 53 (2026-01-17)
    slot_usage:
      likely_whatsapp_proficient:
        range: boolean
-      digital_indicator:
-        range: string
+      # MIGRATED 2026-01-25: digital_indicator → emphasizes_or_emphasized + DigitalProficiency (Rule 53)
+      emphasizes_or_emphasized:
+        range: DigitalProficiency
+        inlined: true
        multivalued: true
-      digital_confidence:
-        range: string
+        description: |
+          Digital proficiency indicators (skills/tools) emphasized in the profile.
+          Migrated from digital_indicator (string list).
+        examples:
+          - value:
+              has_or_had_label: "Python"
+              has_or_had_type: "PROGRAMMING_LANGUAGE"
+            description: Python skill indicator
+      # MIGRATED 2026-01-25: digital_confidence → estimates_or_estimated + DigitalConfidence (Rule 53)
+      estimates_or_estimated:
+        range: DigitalConfidence
+        inlined: true
+        required: false
+        description: |
+          Confidence estimation for digital proficiency.
+          Migrated from digital_confidence (string) to structured class.
+        examples:
+          - value:
+              has_or_had_score: 0.85
+              has_or_had_type: PROFICIENCY_INFERENCE
+              has_or_had_description: "High confidence inferred from technical skills"
+            description: High confidence estimation
  WhatsAppLikelihood:
    class_uri: hc:WhatsAppLikelihood
    description: 'Likelihood score for WhatsApp business usage.
--- a/schemas/20251121/linkml/modules/classes/PrimaryDigitalPresenceAssertion.yaml
+++ b/schemas/20251121/linkml/modules/classes/PrimaryDigitalPresenceAssertion.yaml
@ -5,7 +5,8 @@ imports:
  - linkml:types
  - ./WebObservation
  - ./TimeSpan
-  - ../enums/DigitalPresenceTypeEnum
+  # MIGRATED 2026-01-25: DigitalPresenceTypeEnum → DigitalPresence class hierarchy (Rule 53)
+  # - ../enums/DigitalPresenceTypeEnum  # REMOVED
  - ../slots/supersedes_or_superseded  # was: supersede - migrated per Rule 53/56 (2026-01-17)
  # REMOVED 2026-01-19: ../slots/confidence_score - migrated to is_or_was_generated_by + GenerationEvent + ConfidenceScore (Rule 53)
  - ../slots/is_or_was_generated_by
@ -23,7 +24,12 @@ imports:
  - ../slots/has_assertion_rationale
  - ../slots/has_assertion_value
  - ../slots/has_or_had_based_on_observation
-  - ../slots/digital_presence_type
+  # MIGRATED 2026-01-25: digital_presence_type → asserts_or_asserted + DigitalPresence (Rule 53)
+  # - ../slots/digital_presence_type  # REMOVED
+  - ../slots/asserts_or_asserted
+  - ./DigitalPresence
+  - ./DigitalPresenceType
+  - ./DigitalPresenceTypes
  - ../slots/specificity_annotation
  - ../slots/has_or_had_score  # was: template_specificity - migrated per Rule 53 (2026-01-17)
  - ../slots/temporal_extent
@ -112,7 +118,8 @@ classes:
    - has_or_had_based_on_observation
    # REMOVED 2026-01-19: confidence_score - migrated to is_or_was_generated_by (Rule 53)
    - is_or_was_generated_by
-    - digital_presence_type
+    # MIGRATED 2026-01-25: digital_presence_type → asserts_or_asserted (Rule 53)
+    - asserts_or_asserted
    - specificity_annotation
    - is_or_was_superseded_by  # was: superseded_by - migrated per Rule 53/56 (2026-01-16)
    - supersedes_or_superseded  # was: supersede - migrated per Rule 53/56 (2026-01-17)
@ -132,16 +139,26 @@ classes:
        - value: https://nde.nl/ontology/hc/social-media/hvn-facebook
        - value: https://nde.nl/ontology/hc/platform/rijksmuseum-website
        - value: https://nde.nl/ontology/hc/iot/museum-beacon-network
-      digital_presence_type:
-        range: DigitalPresenceTypeEnum
+      # MIGRATED 2026-01-25: digital_presence_type → asserts_or_asserted (Rule 53)
+      asserts_or_asserted:
+        range: DigitalPresence
        required: false
+        inlined: true
+        description: |
+          The digital presence classification being asserted.
+          MIGRATED from digital_presence_type per slot_fixes.yaml (Rule 53, 2026-01-25).
+          Uses DigitalPresence wrapper with typed classification (WebsitePresenceType, SocialMediaPresenceType, etc.).
        examples:
-        - value: SOCIAL_MEDIA
+        - value:
+            has_or_had_type:
+              has_or_had_label: "Social Media Profile"
+            has_or_had_identifier: "https://nde.nl/ontology/hc/type/social-media"
          description: Characterizing a social media profile
-        - value: WEBSITE
+        - value:
+            has_or_had_type:
+              has_or_had_label: "Website"
+            has_or_had_identifier: "https://nde.nl/ontology/hc/type/website"
          description: Characterizing main website
-        - value: IOT_BEACON
-          description: Characterizing beacon network
      has_assertion_value:
        range: boolean
        required: true
--- a/schemas/20251121/linkml/modules/classes/ProfileData.yaml
+++ b/schemas/20251121/linkml/modules/classes/ProfileData.yaml
@ -76,7 +76,15 @@ classes:
          multivalued: true
          inlined_as_list: true
          description: Languages known
+        specifies_or_specified:
+          range: Education
+          multivalued: true
+          inlined_as_list: true
+          description: >-
+            Educational background.
+            MIGRATED from education per Rule 53 (2026-01-25).
        education:
+          deprecated: "Migrated to specifies_or_specified"
          range: EducationEntry
          multivalued: true
          inlined_as_list: true
--- a/schemas/20251121/linkml/modules/classes/Speaker.yaml
+++ b/schemas/20251121/linkml/modules/classes/Speaker.yaml
@ -0,0 +1,74 @@
+# Speaker class
+# Represents an identified speaker in audio/video content
+#
+# Generation date: 2026-01-25
+# Rule compliance: 0 (LinkML single source of truth), 53 (migration from diarization_speaker_*)
+# Migration source: diarization_speaker_id/label slots per slot_fixes.yaml
+
+id: https://nde.nl/ontology/hc/class/Speaker
+name: speaker_class
+title: Speaker 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_identifier
+
+classes:
+  Speaker:
+    class_uri: prov:Agent
+    description: |
+      Represents a speaker identified in audio/video content analysis.
+      
+      **MIGRATION SOURCE**: Created from diarization_speaker_id and diarization_speaker_label migration (Rule 53, 2026-01-25).
+      
+      **Ontological Alignment**:
+      - **Primary**: `prov:Agent` - An agent (person) participating in an activity (speaking)
+      - **Close**: `schema:Person` - A person
+      
+    exact_mappings:
+      - prov:Agent
+    
+    close_mappings:
+      - schema:Person
+    
+    slots:
+      - has_or_had_identifier
+      - has_or_had_label
+    
+    slot_usage:
+      has_or_had_identifier:
+        description: Unique identifier for the speaker (e.g., "spk_001", Wikidata ID).
+        range: uriorcurie
+        required: true
+      has_or_had_label:
+        description: Human-readable name or label for the speaker (e.g., "Curator", "Interviewer").
+        range: string
+        required: false
+    
+    annotations:
+      custodian_types: '["*"]'
+      specificity_score: 0.7
+      specificity_rationale: Specific to audio/video content analysis.
+    
+    comments:
+      - "CREATED from diarization_speaker_* migration per slot_fixes.yaml (Rule 53)"
+      - "Represents identified speakers in media content"
+    
+    examples:
+      - value:
+          has_or_had_identifier: spk_001
+          has_or_had_label: Curator
+        description: Identified curator speaker
+      - value:
+          has_or_had_identifier: https://www.wikidata.org/wiki/Q12345
+          has_or_had_label: John Doe
+        description: Speaker linked to Wikidata entity
--- a/schemas/20251121/linkml/modules/classes/VideoAnnotationTypes.yaml
+++ b/schemas/20251121/linkml/modules/classes/VideoAnnotationTypes.yaml
@ -205,7 +205,7 @@ classes:
    - has_or_had_quantity  # was: cut_count - migrated per Rule 53 (2026-01-22)
    # MIGRATED 2026-01-25: detection_level → filters_or_filtered + DetectionLevelType (Rule 53)
    - filters_or_filtered
-    - dissolve_count
+    # MIGRATED 2026-01-25: dissolve_count → has_or_had_quantity (Rule 53)
    - fade_count
    - scene_count
    - has_or_had_scene_segment
@ -281,21 +281,27 @@ classes:
        examples:
        - value: '[{has_or_had_label: "CUT"}, {has_or_had_label: "FADE_IN"}]'
          description: Transition types found in video
-      has_or_had_quantity:  # was: cut_count - migrated per Rule 53 (2026-01-22)
+      has_or_had_quantity:
        range: Quantity
        required: false
+        multivalued: true
        inlined: true
        description: |
-          Number of hard cuts (instantaneous transitions) as a Quantity.
-          MIGRATED from cut_count per slot_fixes.yaml (Rule 53).
-          Uses Quantity class with Unit type "Cut".
+          Quantities of detected transitions (cuts, dissolves, fades).
+          MIGRATED from cut_count, dissolve_count per slot_fixes.yaml (Rule 53).
+          Uses Quantity class with Unit type "Cut", "Dissolve", "Fade".
        examples:
        - value:
            has_or_had_numeric_value: 42
            has_or_had_unit:
              has_or_had_type: Cut
              has_or_had_symbol: "cuts"
-          description: 42 cuts detected (was cut_count)
+          description: 42 cuts detected
+        - value:
+            has_or_had_numeric_value: 3
+            has_or_had_unit:
+              has_or_had_label: "dissolve transition"
+          description: 3 dissolves detected
      fade_count:
        range: integer
        required: false
@ -303,13 +309,6 @@ classes:
        examples:
        - value: 5
          description: 5 fades detected
-      dissolve_count:
-        range: integer
-        required: false
-        minimum_value: 0
-        examples:
-        - value: 3
-          description: 3 dissolves detected
    comments:
    - Scene and shot boundary detection
    - Supports both technical (shot) and semantic (scene) analysis
--- a/schemas/20251121/linkml/modules/classes/VideoAudioAnnotation.yaml
+++ b/schemas/20251121/linkml/modules/classes/VideoAudioAnnotation.yaml
@ -10,13 +10,26 @@ imports:
  # - ../slots/audio_event_segments
  - ../slots/has_or_had_segment
  - ../slots/has_audio_quality_score
-  - ../slots/diarization_confidence
-  - ../slots/diarization_enabled
-  - ../slots/diarization_end_seconds
-  - ../slots/has_or_had_diarization_segment
-  - ../slots/diarization_speaker_id
-  - ../slots/diarization_speaker_label
-  - ../slots/diarization_start_seconds
+  # MIGRATED 2026-01-25: diarization_* slots (Rule 53)
+  - ../slots/has_or_had_provenance
+  - ./Provenance
+  - ./ConfidenceScore
+  - ../slots/is_or_was_diarized
+  - ./DiarizationStatus
+  - ../slots/temporal_extent
+  - ./TimeSpan
+  - ../slots/start_of_the_start
+  - ../slots/end_of_the_end
+  - ./Timestamp
+  - ../slots/contains_or_contained
+  - ./Speaker
+  - ../slots/has_or_had_identifier
+  - ./Identifier
+  - ../slots/has_or_had_label
+  - ./Label
+  # MIGRATED 2026-01-25: has_or_had_diarization_segment → contains_or_contained (Rule 53)
+  # - ../slots/has_or_had_diarization_segment  # REMOVED
+
  - ../slots/has_clipping
  - ../slots/is_background
  - ../slots/is_overlapping
@ -123,8 +136,10 @@ classes:
    # - audio_event_segments
    - has_or_had_segment
    - audio_quality_score
-    - diarization_enabled
-    - has_or_had_diarization_segment
+    # MIGRATED 2026-01-25: diarization_enabled → is_or_was_diarized (Rule 53)
+    - is_or_was_diarized
+    # MIGRATED 2026-01-25: has_or_had_diarization_segment → contains_or_contained (Rule 53)
+    - contains_or_contained
    - has_clipping
    - languages_detected
    - music_confidence
@ -212,19 +227,33 @@ classes:
        examples:
        - value: '[nl, en, de]'
          description: Dutch, English, and German detected
-      diarization_enabled:
-        range: boolean
+      # MIGRATED 2026-01-25: diarization_enabled → is_or_was_diarized (Rule 53)
+      is_or_was_diarized:
+        range: DiarizationStatus
        required: false
+        inlined: true
+        description: |
+          Status of speaker diarization process.
+          MIGRATED from diarization_enabled (Rule 53).
        examples:
-        - value: true
-          description: Diarization was performed
-      has_or_had_diarization_segment:
+        - value:
+            has_or_had_label: Enabled
+            has_or_had_identifier: https://schema.org/ActiveActionStatus
+          description: Diarization enabled
+      # MIGRATED 2026-01-25: has_or_had_diarization_segment → contains_or_contained (Rule 53)
+      contains_or_contained:
        range: DiarizationSegment
        multivalued: true
        required: false
        inlined_as_list: true
        examples:
-        - value: '[{start_seconds: 0.0, end_seconds: 15.0, speaker_id: ''spk_001'', speaker_label: ''Curator''}]'
+        - value:
+            temporal_extent:
+              begin_of_the_begin: 0.0
+              end_of_the_end: 15.0
+            contains_or_contained:
+              has_or_had_identifier: spk_001
+              has_or_had_label: Curator
          description: Curator speaking for first 15 seconds
      speaker_count:
        range: integer
@ -385,34 +414,29 @@ classes:

      '
    slots:
-    - diarization_confidence
-    - diarization_end_seconds
-    - diarization_speaker_id
-    - diarization_speaker_label
-    - diarization_start_seconds
+    # MIGRATED 2026-01-25: diarization_* slots (Rule 53)
+    - has_or_had_provenance  # for confidence
+    - temporal_extent        # for start/end seconds
+    - contains_or_contained  # for speaker
    - is_overlapping
    - specificity_annotation
    - has_or_had_score  # was: template_specificity - migrated per Rule 53 (2026-01-17)
    slot_usage:
-      diarization_start_seconds:
-        range: float
+      temporal_extent:
+        description: Time range of the diarization segment.
+        range: TimeSpan
+        inlined: true
        required: true
-        minimum_value: 0.0
-      diarization_end_seconds:
-        range: float
+      contains_or_contained:
+        description: Speaker identified in this segment.
+        range: Speaker
+        inlined: true
        required: true
-        minimum_value: 0.0
-      diarization_speaker_id:
-        range: string
-        required: true
-      diarization_speaker_label:
-        range: string
+      has_or_had_provenance:
+        description: Provenance metadata including confidence score.
+        range: Provenance
+        inlined: true
        required: false
-      diarization_confidence:
-        range: float
-        required: false
-        minimum_value: 0.0
-        maximum_value: 1.0
      is_overlapping:
        range: boolean
        required: false
--- a/schemas/20251121/linkml/modules/classes/VideoPost.yaml
+++ b/schemas/20251121/linkml/modules/classes/VideoPost.yaml
@ -44,6 +44,9 @@ imports:
  - ../slots/has_or_had_status
  - ./Status
  - ../slots/dislike_count
+  # MIGRATED 2026-01-25: duration → has_or_had_time_interval + TimeInterval (Rule 53)
+  - ../slots/has_or_had_time_interval
+  - ./TimeInterval
  - ../slots/duration
  - ../slots/favorite_count
  # MIGRATED 2026-01-22: frame_rate → has_or_had_quantity + Quantity + has_or_had_unit + Unit (Rule 53)
@ -242,7 +245,8 @@ classes:
    # MIGRATED 2026-01-24: definition → has_or_had_resolution + Resolution (Rule 53)
    - has_or_had_resolution
    - dislike_count
-    - duration
+    # MIGRATED 2026-01-25: duration → has_or_had_time_interval (Rule 53)
+    - has_or_had_time_interval
    - favorite_count
    # REMOVED 2026-01-22: frame_rate - migrated to has_or_had_quantity + Quantity + Unit (Rule 53)
    - is_embeddable
@ -259,15 +263,23 @@ classes:
    - has_or_had_comment  # was: video_comment - migrated per Rule 53 (2025-01-15)
    - has_or_had_quantity
    slot_usage:
-      duration:
-        range: string
+      # MIGRATED 2026-01-25: duration → has_or_had_time_interval + TimeInterval (Rule 53)
+      has_or_had_time_interval:
+        range: TimeInterval
        required: false
-        pattern: ^P(T(\d+H)?(\d+M)?(\d+S)?)?$
+        inlined: true
+        description: |
+          Video duration.
+          MIGRATED from duration (ISO 8601 string) to TimeInterval class.
        examples:
-        - value: PT10M59S
-          description: 10 minutes and 59 seconds
-        - value: PT1H30M
-          description: 1 hour 30 minutes
+          - value:
+              duration_value: PT10M59S
+              duration_description: 10 minutes and 59 seconds
+            description: Video duration
+          - value:
+              duration_value: PT1H30M
+              duration_description: 1 hour 30 minutes
+            description: Long format duration
      # MIGRATED 2026-01-24: definition → has_or_had_resolution + Resolution (Rule 53)
      has_or_had_resolution:
        range: Resolution
--- a/schemas/20251121/linkml/modules/slots/allocates_or_allocated.yaml
+++ b/schemas/20251121/linkml/modules/slots/allocates_or_allocated.yaml
@ -12,7 +12,7 @@ slots:
  allocates_or_allocated:
    description: >-
      Resources or identifiers allocated by this entity.
-    range: string
+    range: uriorcurie  # Broadened from string per Rule 55 (2026-01-25)
    multivalued: true
    slot_uri: prov:generated
    close_mappings:
--- a/schemas/20251121/linkml/modules/slots/archive/device_count_archived_20260125.yaml
+++ b/schemas/20251121/linkml/modules/slots/archive/device_count_archived_20260125.yaml
--- a/schemas/20251121/linkml/modules/slots/archive/diarization_confidence_archived_20260125.yaml
+++ b/schemas/20251121/linkml/modules/slots/archive/diarization_confidence_archived_20260125.yaml
--- a/schemas/20251121/linkml/modules/slots/archive/diarization_enabled_archived_20260125.yaml
+++ b/schemas/20251121/linkml/modules/slots/archive/diarization_enabled_archived_20260125.yaml
--- a/schemas/20251121/linkml/modules/slots/archive/diarization_end_seconds_archived_20260125.yaml
+++ b/schemas/20251121/linkml/modules/slots/archive/diarization_end_seconds_archived_20260125.yaml
--- a/schemas/20251121/linkml/modules/slots/archive/diarization_speaker_id_archived_20260125.yaml
+++ b/schemas/20251121/linkml/modules/slots/archive/diarization_speaker_id_archived_20260125.yaml
--- a/schemas/20251121/linkml/modules/slots/archive/diarization_speaker_label_archived_20260125.yaml
+++ b/schemas/20251121/linkml/modules/slots/archive/diarization_speaker_label_archived_20260125.yaml
--- a/schemas/20251121/linkml/modules/slots/archive/diarization_start_seconds_archived_20260125.yaml
+++ b/schemas/20251121/linkml/modules/slots/archive/diarization_start_seconds_archived_20260125.yaml
--- a/schemas/20251121/linkml/modules/slots/archive/digital_confidence_archived_20260125.yaml
+++ b/schemas/20251121/linkml/modules/slots/archive/digital_confidence_archived_20260125.yaml
--- a/schemas/20251121/linkml/modules/slots/archive/digital_indicator_archived_20260125.yaml
+++ b/schemas/20251121/linkml/modules/slots/archive/digital_indicator_archived_20260125.yaml
--- a/schemas/20251121/linkml/modules/slots/archive/digital_platform_archived_20260125.yaml
+++ b/schemas/20251121/linkml/modules/slots/archive/digital_platform_archived_20260125.yaml
--- a/schemas/20251121/linkml/modules/slots/archive/digital_platform_score_archived_20260125.yaml
+++ b/schemas/20251121/linkml/modules/slots/archive/digital_platform_score_archived_20260125.yaml
--- a/schemas/20251121/linkml/modules/slots/archive/digital_presence_type_archived_20260125.yaml
+++ b/schemas/20251121/linkml/modules/slots/archive/digital_presence_type_archived_20260125.yaml
--- a/schemas/20251121/linkml/modules/slots/archive/digital_professional_archived_20260125.yaml
+++ b/schemas/20251121/linkml/modules/slots/archive/digital_professional_archived_20260125.yaml
--- a/schemas/20251121/linkml/modules/slots/archive/digital_surrogate_archived_20260126.yaml
+++ b/schemas/20251121/linkml/modules/slots/archive/digital_surrogate_archived_20260126.yaml
--- a/schemas/20251121/linkml/modules/slots/archive/digital_surrogate_url_archived_20260126.yaml
+++ b/schemas/20251121/linkml/modules/slots/archive/digital_surrogate_url_archived_20260126.yaml
--- a/schemas/20251121/linkml/modules/slots/archive/digitization_budget_archived_20260125.yaml
+++ b/schemas/20251121/linkml/modules/slots/archive/digitization_budget_archived_20260125.yaml
--- a/schemas/20251121/linkml/modules/slots/archive/digitization_status_archived_20260126.yaml
+++ b/schemas/20251121/linkml/modules/slots/archive/digitization_status_archived_20260126.yaml
--- a/schemas/20251121/linkml/modules/slots/archive/dissolve_count_archived_20260125.yaml
+++ b/schemas/20251121/linkml/modules/slots/archive/dissolve_count_archived_20260125.yaml
--- a/schemas/20251121/linkml/modules/slots/archive/duration_archived_20260125.yaml
+++ b/schemas/20251121/linkml/modules/slots/archive/duration_archived_20260125.yaml
--- a/schemas/20251121/linkml/modules/slots/archive/ead_id_archived_20260125.yaml
+++ b/schemas/20251121/linkml/modules/slots/archive/ead_id_archived_20260125.yaml
--- a/Show more
+++ b/Show more