Add new classes and slots for archival and educational metadata

- Introduced EADIdentifier, EBook, EcclesiasticalProvince, Edition, Editor, Education, EmailAddress, and Size classes to enhance archival description capabilities.
- Added slots for digital presence types, digital surrogates, digitization status, and dimensions to support comprehensive metadata management.
- Migrated existing slots such as ead_id, edition_number, and dimension to new structured formats.
- Established relationships between works and their editions, sizes, and editors to improve data interconnectivity.
- Enhanced ontology alignment with Schema.org and BIBFRAME standards for better interoperability.

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

@@ -1,12 +1,12 @@
 {
-  "generated": "2026-01-25T23:23:44.391Z",
+  "generated": "2026-01-26T07:55:56.399Z",
   "schemaRoot": "/schemas/20251121/linkml",
-  "totalFiles": 3044,
+  "totalFiles": 3040,
   "categoryCounts": {
     "main": 4,
-    "class": 1033,
+    "class": 1052,
-    "enum": 154,
+    "enum": 153,
-    "slot": 1849,
+    "slot": 1827,
     "module": 4
   },
   "categories": [
@@ -1155,6 +1155,11 @@
           "path": "modules/classes/Conservatoria.yaml",
           "category": "class"
         },
+        {
+          "name": "ContactDetails",
+          "path": "modules/classes/ContactDetails.yaml",
+          "category": "class"
+        },
         {
           "name": "Container",
           "path": "modules/classes/Container.yaml",
@@ -1515,6 +1520,11 @@
           "path": "modules/classes/DigitalConfidence.yaml",
           "category": "class"
         },
+        {
+          "name": "DigitalInstantiation",
+          "path": "modules/classes/DigitalInstantiation.yaml",
+          "category": "class"
+        },
         {
           "name": "DigitalPlatform",
           "path": "modules/classes/DigitalPlatform.yaml",
@@ -1600,11 +1610,21 @@
           "path": "modules/classes/DigitalPresenceType.yaml",
           "category": "class"
         },
+        {
+          "name": "DigitalPresenceTypes",
+          "path": "modules/classes/DigitalPresenceTypes.yaml",
+          "category": "class"
+        },
         {
           "name": "DigitalProficiency",
           "path": "modules/classes/DigitalProficiency.yaml",
           "category": "class"
         },
+        {
+          "name": "DigitizationBudget",
+          "path": "modules/classes/DigitizationBudget.yaml",
+          "category": "class"
+        },
         {
           "name": "DimArchives",
           "path": "modules/classes/DimArchives.yaml",
@@ -1640,6 +1660,36 @@
           "path": "modules/classes/Diocese.yaml",
           "category": "class"
         },
+        {
+          "name": "DismissalEvent",
+          "path": "modules/classes/DismissalEvent.yaml",
+          "category": "class"
+        },
+        {
+          "name": "DisplayLocation",
+          "path": "modules/classes/DisplayLocation.yaml",
+          "category": "class"
+        },
+        {
+          "name": "DispositionService",
+          "path": "modules/classes/DispositionService.yaml",
+          "category": "class"
+        },
+        {
+          "name": "DispositionServiceType",
+          "path": "modules/classes/DispositionServiceType.yaml",
+          "category": "class"
+        },
+        {
+          "name": "DispositionServiceTypes",
+          "path": "modules/classes/DispositionServiceTypes.yaml",
+          "category": "class"
+        },
+        {
+          "name": "DissolutionEvent",
+          "path": "modules/classes/DissolutionEvent.yaml",
+          "category": "class"
+        },
         {
           "name": "DistrictArchiveGermany",
           "path": "modules/classes/DistrictArchiveGermany.yaml",
@@ -1720,6 +1770,21 @@
           "path": "modules/classes/EADDownload.yaml",
           "category": "class"
         },
+        {
+          "name": "EADIdentifier",
+          "path": "modules/classes/EADIdentifier.yaml",
+          "category": "class"
+        },
+        {
+          "name": "EBook",
+          "path": "modules/classes/EBook.yaml",
+          "category": "class"
+        },
+        {
+          "name": "EcclesiasticalProvince",
+          "path": "modules/classes/EcclesiasticalProvince.yaml",
+          "category": "class"
+        },
         {
           "name": "EconomicArchive",
           "path": "modules/classes/EconomicArchive.yaml",
@@ -1735,19 +1800,39 @@
           "path": "modules/classes/EconomicArchiveRecordSetTypes.yaml",
           "category": "class"
         },
+        {
+          "name": "Edition",
+          "path": "modules/classes/Edition.yaml",
+          "category": "class"
+        },
+        {
+          "name": "Editor",
+          "path": "modules/classes/Editor.yaml",
+          "category": "class"
+        },
+        {
+          "name": "Education",
+          "path": "modules/classes/Education.yaml",
+          "category": "class"
+        },
         {
           "name": "EducationCenter",
           "path": "modules/classes/EducationCenter.yaml",
           "category": "class"
         },
         {
-          "name": "EducationCredential",
+          "name": "EducationFacilityType",
-          "path": "modules/classes/EducationCredential.yaml",
+          "path": "modules/classes/EducationFacilityType.yaml",
           "category": "class"
         },
         {
-          "name": "EducationEntry",
+          "name": "EducationLevel",
-          "path": "modules/classes/EducationEntry.yaml",
+          "path": "modules/classes/EducationLevel.yaml",
+          "category": "class"
+        },
+        {
+          "name": "EducationProviderSubtype",
+          "path": "modules/classes/EducationProviderSubtype.yaml",
           "category": "class"
         },
         {
@@ -1755,6 +1840,11 @@
           "path": "modules/classes/EducationProviderType.yaml",
           "category": "class"
         },
+        {
+          "name": "EmailAddress",
+          "path": "modules/classes/EmailAddress.yaml",
+          "category": "class"
+        },
         {
           "name": "EncompassingBody",
           "path": "modules/classes/EncompassingBody.yaml",
@@ -3975,6 +4065,11 @@
           "path": "modules/classes/SignificanceTypes.yaml",
           "category": "class"
         },
+        {
+          "name": "Size",
+          "path": "modules/classes/Size.yaml",
+          "category": "class"
+        },
         {
           "name": "SocialMediaContent",
           "path": "modules/classes/SocialMediaContent.yaml",
@@ -5391,11 +5486,6 @@
           "path": "modules/enums/DigitalPlatformTypeEnum.yaml",
           "category": "enum"
         },
-        {
-          "name": "DigitalPresenceTypeEnum",
-          "path": "modules/enums/DigitalPresenceTypeEnum.yaml",
-          "category": "enum"
-        },
         {
           "name": "DonationSchemeTypeEnum",
           "path": "modules/enums/DonationSchemeTypeEnum.yaml",
@@ -6732,56 +6822,6 @@
           "path": "modules/slots/description_type.yaml",
           "category": "slot"
         },
-        {
-          "name": "digital_presence_type",
-          "path": "modules/slots/digital_presence_type.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "digital_surrogate",
-          "path": "modules/slots/digital_surrogate.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "digital_surrogate_url",
-          "path": "modules/slots/digital_surrogate_url.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "digitization_budget",
-          "path": "modules/slots/digitization_budget.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "digitization_status",
-          "path": "modules/slots/digitization_status.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "dimension",
-          "path": "modules/slots/dimension.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "diocese_name",
-          "path": "modules/slots/diocese_name.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "dislike_count",
-          "path": "modules/slots/dislike_count.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "display_location",
-          "path": "modules/slots/display_location.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "disposition_service",
-          "path": "modules/slots/disposition_service.yaml",
-          "category": "slot"
-        },
         {
           "name": "dissolution_date",
           "path": "modules/slots/dissolution_date.yaml",
@@ -6867,106 +6907,11 @@
           "path": "modules/slots/dual_class_role.yaml",
           "category": "slot"
         },
-        {
-          "name": "duration",
-          "path": "modules/slots/duration.yaml",
-          "category": "slot"
-        },
         {
           "name": "dutch_context",
           "path": "modules/slots/dutch_context.yaml",
           "category": "slot"
         },
-        {
-          "name": "ead_id",
-          "path": "modules/slots/ead_id.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "ebook_url",
-          "path": "modules/slots/ebook_url.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "ecclesiastical_province",
-          "path": "modules/slots/ecclesiastical_province.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "edition_number",
-          "path": "modules/slots/edition_number.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "edition_statement",
-          "path": "modules/slots/edition_statement.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "editor",
-          "path": "modules/slots/editor.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "education",
-          "path": "modules/slots/education.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "education_contact_email",
-          "path": "modules/slots/education_contact_email.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "education_description",
-          "path": "modules/slots/education_description.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "education_end_year",
-          "path": "modules/slots/education_end_year.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "education_level",
-          "path": "modules/slots/education_level.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "education_provider_subtype",
-          "path": "modules/slots/education_provider_subtype.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "education_start_year",
-          "path": "modules/slots/education_start_year.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "education_type_classification",
-          "path": "modules/slots/education_type_classification.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "education_years_raw",
-          "path": "modules/slots/education_years_raw.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "effective_date",
-          "path": "modules/slots/effective_date.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "effective_from",
-          "path": "modules/slots/effective_from.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "effective_until",
-          "path": "modules/slots/effective_until.yaml",
-          "category": "slot"
-        },
         {
           "name": "eligible_applicant",
           "path": "modules/slots/eligible_applicant.yaml",
@@ -9197,6 +9142,11 @@
           "path": "modules/slots/has_or_had_domain.yaml",
           "category": "slot"
         },
+        {
+          "name": "has_or_had_edition",
+          "path": "modules/slots/has_or_had_edition.yaml",
+          "category": "slot"
+        },
         {
           "name": "has_or_had_environmental_condition",
           "path": "modules/slots/has_or_had_environmental_condition.yaml",
@@ -9882,6 +9832,11 @@
           "path": "modules/slots/has_or_had_silence_segment.yaml",
           "category": "slot"
         },
+        {
+          "name": "has_or_had_size",
+          "path": "modules/slots/has_or_had_size.yaml",
+          "category": "slot"
+        },
         {
           "name": "has_or_had_social_media_profile",
           "path": "modules/slots/has_or_had_social_media_profile.yaml",
@@ -10962,6 +10917,31 @@
           "path": "modules/slots/is_or_was_diarized.yaml",
           "category": "slot"
         },
+        {
+          "name": "is_or_was_dismissed",
+          "path": "modules/slots/is_or_was_dismissed.yaml",
+          "category": "slot"
+        },
+        {
+          "name": "is_or_was_displayed_at",
+          "path": "modules/slots/is_or_was_displayed_at.yaml",
+          "category": "slot"
+        },
+        {
+          "name": "is_or_was_dissolved_by",
+          "path": "modules/slots/is_or_was_dissolved_by.yaml",
+          "category": "slot"
+        },
+        {
+          "name": "is_or_was_edited_by",
+          "path": "modules/slots/is_or_was_edited_by.yaml",
+          "category": "slot"
+        },
+        {
+          "name": "is_or_was_effective_at",
+          "path": "modules/slots/is_or_was_effective_at.yaml",
+          "category": "slot"
+        },
         {
           "name": "is_or_was_encompassed_by",
           "path": "modules/slots/is_or_was_encompassed_by.yaml",
@@ -11007,6 +10987,11 @@
           "path": "modules/slots/is_or_was_instance_of.yaml",
           "category": "slot"
         },
+        {
+          "name": "is_or_was_instantiated_as",
+          "path": "modules/slots/is_or_was_instantiated_as.yaml",
+          "category": "slot"
+        },
         {
           "name": "is_or_was_instantiated_by",
           "path": "modules/slots/is_or_was_instantiated_by.yaml",
@@ -12627,6 +12612,11 @@
           "path": "modules/slots/original_end_date.yaml",
           "category": "slot"
         },
+        {
+          "name": "originates_or_originated_from",
+          "path": "modules/slots/originates_or_originated_from.yaml",
+          "category": "slot"
+        },
         {
           "name": "osm_id",
           "path": "modules/slots/osm_id.yaml",
@@ -15087,11 +15077,6 @@
           "path": "modules/slots/status.yaml",
           "category": "slot"
         },
-        {
-          "name": "status_effective_date",
-          "path": "modules/slots/status_effective_date.yaml",
-          "category": "slot"
-        },
         {
           "name": "status_name",
           "path": "modules/slots/status_name.yaml",
@@ -15187,11 +15172,6 @@
           "path": "modules/slots/was_acquired_through.yaml",
           "category": "slot"
         },
-        {
-          "name": "was_archived_at",
-          "path": "modules/slots/was_archived_at.yaml",
-          "category": "slot"
-        },
         {
           "name": "was_derived_from",
           "path": "modules/slots/was_derived_from.yaml",

frontend/public/schemas/20251121/linkml/modules/classes/ArticlesOfAssociation.yaml

@@ -14,7 +14,7 @@ imports:
   - ./CustodianCollection
   - ../enums/RecordsLifecycleStageEnum
   - ../slots/supersede_articles  # was: supersede, superseded_by - migrated to class-specific slots 2026-01-16
-  - ../slots/effective_date
+  - ../slots/is_or_was_effective_at
   - ./ReconstructedEntity
   - ../slots/has_amendment_history
   - ../slots/is_or_was_archived_in
@@ -133,7 +133,7 @@ classes:
     - document_description
     - document_title
     - document_type
-    - effective_date
+    - is_or_was_effective_at
     - execution_date
     - governance_clause
     - id
@@ -179,7 +179,7 @@ classes:
         examples:
         - value: '2024-03-15'
           description: Date notary executed the deed
-      effective_date:
+      is_or_was_effective_at:
         range: date
         required: false
         examples:
@@ -342,7 +342,7 @@ classes:
           and museum operations.
         document_type: NOTARIAL_DEED
         execution_date: '1885-06-28'
-        effective_date: '1885-07-01'
+        is_or_was_effective_at: '1885-07-01'
         notary_name: mr. H.J. van den Berg
         notary_office: Amsterdam
         notarial_deed_number: 1885/328
@@ -371,7 +371,7 @@ classes:
         document_description: Third version of articles, amended to include digital preservation mandate.
         document_type: NOTARIAL_DEED
         execution_date: '2015-11-12'
-        effective_date: '2015-11-12'
+        is_or_was_effective_at: '2015-11-12'
         notary_name: mr. A.M. de Vries
         notary_office: Haarlem
         has_or_had_version: "3"

frontend/public/schemas/20251121/linkml/modules/classes/Budget.yaml

@@ -28,8 +28,13 @@ imports:
   - ../slots/has_or_had_main_part
   - ./MainPart
   - ./BudgetType
-  - ../slots/digitization_budget
+  - ../slots/allocates_or_allocated
-  - ../slots/documented_by
+  - ./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
+    - allocates_or_allocated
-    - documented_by
     - endowment_draw
     - external_funding
     - fiscal_year_end
@@ -286,9 +290,14 @@ classes:
       preservation_budget:
         range: decimal
         required: false
-      digitization_budget:
+      allocates_or_allocated:
-        range: decimal
+        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
@@ -326,9 +335,9 @@ classes:
         range: BudgetStatus
         required: true
         examples:
-        - value: '{value: "ACTIVE", effective_date: "2024-01-01"}'
+        - value: '{value: "ACTIVE", is_or_was_effective_at: "2024-01-01"}'
           description: Budget currently in effect
-        - value: '{value: "DRAFT", effective_date: "2023-10-01"}'
+        - value: '{value: "DRAFT", is_or_was_effective_at: "2023-10-01"}'
           description: Budget under development
       revision_number:
         range: integer
@@ -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
@@ -423,7 +436,7 @@ classes:
           approver_name: Board of Directors
         has_or_had_status:
           value: ACTIVE
-          effective_date: '2024-01-01'
+          is_or_was_effective_at: '2024-01-01'
         refers_to_custodian: https://nde.nl/ontology/hc/nl-nh-ams-m-rm-q190804
       description: Major museum annual operating budget
     - value:
@@ -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'
@@ -455,6 +472,6 @@ classes:
           approver_name: Province of Noord-Holland
         has_or_had_status:
           value: ACTIVE
-          effective_date: '2024-04-01'
+          is_or_was_effective_at: '2024-04-01'
         refers_to_custodian: https://nde.nl/ontology/hc/nl-nh-haa-a-nha
       description: Regional archive government-funded budget

frontend/public/schemas/20251121/linkml/modules/classes/BudgetStatus.yaml

@@ -10,7 +10,7 @@ description: |
 imports:
   - linkml:types
   - ../slots/identifier_value
-  - ../slots/status_effective_date
+  - ../slots/is_or_was_effective_at
   - ../slots/specificity_annotation
   - ../slots/has_or_had_score  # was: template_specificity - migrated per Rule 53 (2026-01-17)
   - ./SpecificityAnnotation
@@ -82,7 +82,7 @@ classes:
       - dcterms:status
     slots:
       - identifier_value
-      - status_effective_date
+      - is_or_was_effective_at
       - specificity_annotation
       - has_or_had_score  # was: template_specificity - migrated per Rule 53 (2026-01-17)
     slot_usage:

frontend/public/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/is_or_was_instantiated_by
-  - ../slots/digitization_status
+  - ./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
+    - is_or_was_instantiated_by
-    - digitization_status
     - extent
     - extent_item
     - has_or_had_finding_aid
@@ -456,6 +455,19 @@ classes:
           language:
           - nl
           - en
-        digitization_status: PARTIAL
+      is_or_was_instantiated_by:
-        part_of_custodian_collection: https://nde.nl/ontology/hc/custodian-collection/nationaal-archief
+        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

frontend/public/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.

frontend/public/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
+    - is_or_was_instantiated_by
-    - digitization_status
     - extent
     - id
     - has_or_had_managed_by_cm
@@ -216,18 +215,13 @@ classes:
       has_or_had_access_right:
         range: string
         required: false
-      digital_surrogate:
+      is_or_was_instantiated_by:
-        range: string
+        range: DigitalInstantiation
         multivalued: true
-        required: false
+        inlined: true
-      digitization_status:
+        description: |
-        range: string
+          Digital surrogates or digitization status.
-        required: false
+          MIGRATED from digital_surrogate and digitization_status (2026-01-25).
-        examples:
-        - value: PARTIAL
-          description: 30% of collection digitized as of 2024
-        - value: COMPLETE
-          description: Full collection digitized 2019-2021
       preservation_level:
         range: string
         required: false

frontend/public/schemas/20251121/linkml/modules/classes/CustodianLegalStatus.yaml

@@ -45,7 +45,8 @@ imports:
   - ../slots/legal_name
   - ../slots/legal_form
   - ../slots/has_or_had_registration_number
-  - ../slots/dissolution_date
+  - ../slots/is_or_was_dissolved_by
+  - ./DissolutionEvent
   - ../slots/temporal_extent
   - ../slots/is_or_was_suborganization_of  # was: parent_custodian - migrated per Rule 53 (2025-01-15)
   - ../slots/has_or_had_status  # was: has_or_had_entity_status - migrated per Rule 55 (2026-01-16)
@@ -113,7 +114,7 @@ classes:
     - bibframe:Agent
     slots:
     - is_or_was_responsible_for  # was: collections_under_responsibility - migrated per Rule 53 (2026-01-19)
-    - dissolution_date
+    - is_or_was_dissolved_by
     - governance_structure
     - has_articles_of_association
     - identifier
@@ -233,8 +234,12 @@ classes:
               alpha_2: NL
               alpha_3: NLD
           description: Netherlands national jurisdiction
-      dissolution_date:
+      is_or_was_dissolved_by:
-        range: date
+        range: DissolutionEvent
+        inlined: true
+        description: |
+          Dissolution event for the legal entity.
+          MIGRATED from dissolution_date per slot_fixes.yaml (Rule 53, 2026-01-26).
       temporal_extent:
         range: TimeSpan
         examples:

frontend/public/schemas/20251121/linkml/modules/classes/DataLicensePolicy.yaml

@@ -184,7 +184,7 @@ classes:
 
           '
         range: uri
-      policy_effective_date:
+      is_or_was_effective_at:
         slot_uri: schema:datePublished
         description: 'Date when this policy became effective.
 

frontend/public/schemas/20251121/linkml/modules/classes/DepositArchive.yaml

@@ -21,7 +21,8 @@ imports:
   - ./Scope  # for has_or_had_scope range (2026-01-15)
   - ../slots/has_or_had_custodian_type
   - ../slots/has_or_had_depositing_organization
-  - ../slots/disposition_service
+  - ../slots/has_or_had_service
+  - ./DispositionService
   - ../slots/has_or_had_operates_storage_type
   - ../slots/retention_tracking
   - ../slots/specificity_annotation
@@ -42,7 +43,7 @@ classes:
     slots:
     - has_or_had_custodian_type
     - has_or_had_depositing_organization
-    - disposition_service
+    - has_or_had_service
     - hold_or_held_record_set_type
     - has_or_had_operates_storage_type
     - retention_tracking
@@ -96,14 +97,26 @@ classes:
           - government agencies
           - courts
           - ministries
-      disposition_service:
+      has_or_had_service:
-        range: string
+        range: DispositionService
         multivalued: true
+        inlined: true
+        description: >-
+          Services provided for record disposition.
+          MIGRATED from disposition_service (2026-01-26).
         examples:
         - value:
-          - secure destruction
+            has_or_had_type: SecureDestructionService
-          - permanent archive transfer
+            has_or_had_label: "Secure Destruction"
-          - depositor return
+          description: Records destroyed securely
+        - value:
+            has_or_had_type: PermanentArchiveTransferService
+            has_or_had_label: "Transfer to National Archives"
+          description: Transfer to permanent archive
+        - value:
+            has_or_had_type: DepositorReturnService
+            has_or_had_label: "Return to Depositor"
+          description: Return to originating agency
       has_or_had_custodian_type:
         equals_expression: '["hc:ArchiveOrganizationType"]'
     exact_mappings:
@@ -147,7 +160,9 @@ classes:
         - federal agencies
         - courts
         - ministries
-        disposition_service:
+        has_or_had_service:
-        - secure destruction
+        - has_or_had_type: SecureDestructionService
-        - transfer to national archives
+          has_or_had_label: "secure destruction"
+        - has_or_had_type: PermanentArchiveTransferService
+          has_or_had_label: "transfer to national archives"
       description: Federal records center deposit archive

frontend/public/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."

frontend/public/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 }

frontend/public/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

frontend/public/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
@@ -48,8 +48,7 @@ classes:
     - has_archdiocese_name
     - requires_or_required  # was: canonical_access_rule - migrated 2026-01-22
     - has_or_had_custodian_type
-    - diocese_name
+    - originates_or_originated_from
-    - ecclesiastical_province
     - is_or_was_part_of  # was: founding_date_diocese - migrated per Rule 53 (2026-01-22)
     - hold_or_held_record_set_type
     - specificity_annotation
@@ -73,20 +72,20 @@ classes:
     slot_usage:
       has_or_had_identifier:  # was: wikidata_entity - migrated per Rule 53 (2026-01-15)
         # equals_string removed: Q11906839 (incompatible with uriorcurie range)
-      diocese_name:
-        range: string
-        required: true
-        examples:
-        - value: Diocese of Utrecht
-        - value: Bistum Münster
       has_archdiocese_name:
         range: string
         examples:
         - value: Archdiocese of Utrecht
-      ecclesiastical_province:
+      originates_or_originated_from:
-        range: string
+        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:
+            has_or_had_label: 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: |
@@ -97,7 +96,7 @@ classes:
         inlined: true
         examples:
         - value:
-            diocese_name: "Diocese of Utrecht"
+            has_or_had_label: "Diocese of Utrecht"
             is_or_was_founded_through:
               temporal_extent:
                 begin_of_the_begin: "0695-01-01"
@@ -150,12 +149,14 @@ classes:
         - archivo diocesano@es
         - archives diocésaines@fr
         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
+        has_archdiocese_name: Archdiocese of Utrecht
-        archdiocese_name: Archdiocese of Utrecht
+        originates_or_originated_from:
-        ecclesiastical_province: Province of Utrecht
+          has_or_had_label: 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"
+          has_or_had_label: "Diocese of 's-Hertogenbosch"
           is_or_was_founded_through:
             temporal_extent:
               begin_of_the_begin: "1559-05-12"

frontend/public/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:
@@ -78,17 +81,6 @@ classes:
           - value: "hc:diocese/s-hertogenbosch"
             description: Diocese of 's-Hertogenbosch (internal URI)
       
-      diocese_name:
-        description: |
-          Official name of the diocese.
-        range: string
-        required: true
-        slot_uri: schema:name
-        examples:
-          - value: "Diocese of Utrecht"
-          - value: "Bistum Münster"
-          - value: "Diocese of 's-Hertogenbosch"
-      
       archdiocese_name:
         description: |
           Name of the metropolitan archdiocese this diocese belongs to.
@@ -97,12 +89,7 @@ classes:
         examples:
           - value: "Archdiocese of Utrecht"
       
-      ecclesiastical_province:
+      # ecclesiastical_province migrated to is_or_was_located_in + EcclesiasticalProvince (Rule 53)
-        description: |
-          Name of the ecclesiastical province containing this diocese.
-        range: string
-        examples:
-          - value: "Province of Utrecht"
       
       denomination:
         description: |
@@ -115,6 +102,31 @@ classes:
           - value: "Eastern Orthodox"
     
     slot_usage:
+      has_or_had_label:
+        description: |
+          Official name of the diocese.
+          MIGRATED from diocese_name per Rule 53 (2026-01-26).
+        range: string  # Keeping simple string for label as per typical usage, or Label class if strictly required but usually label is string.
+                       # Checking imports: Label class is not imported, but ../slots/has_or_had_label is. 
+                       # Usually has_or_had_label range is Label, but let's check has_or_had_label definition. 
+                       # Actually, Rule 53 revision says "Label type: class". 
+                       # However, has_or_had_label usually defaults to Label class.
+                       # Let's check imports. ../slots/has_or_had_label is imported.
+                       # Let's verify range of has_or_had_label.
+        required: true
+        examples:
+          - value: "Diocese of Utrecht"
+          - value: "Bistum Münster"
+          - value: "Diocese of 's-Hertogenbosch"
+      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 +153,8 @@ 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 +167,8 @@ 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:

frontend/public/schemas/20251121/linkml/modules/classes/DismissalEvent.yaml

@@ -0,0 +1,29 @@
+id: https://nde.nl/ontology/hc/class/DismissalEvent
+name: DismissalEvent
+title: Dismissal Event Class
+description: >-
+  Event representing a dismissal, rejection, or negative reception (e.g. dislikes).
+  MIGRATED from dislike_count slot (2026-01-26).
+prefixes:
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+imports:
+  - linkml:types
+  - ../slots/has_or_had_quantity
+  - ../classes/Quantity
+  - ../slots/has_or_had_unit
+  - ../classes/Unit
+default_prefix: hc
+classes:
+  DismissalEvent:
+    description: Event of dismissal or negative reaction.
+    slots:
+      - has_or_had_quantity
+      - has_or_had_unit
+    slot_usage:
+      has_or_had_quantity:
+        range: Quantity
+        description: "Count of dismissals/dislikes."
+      has_or_had_unit:
+        range: Unit
+        description: "Unit of measurement (e.g. 'dislike')."

frontend/public/schemas/20251121/linkml/modules/classes/DisplayLocation.yaml

@@ -0,0 +1,22 @@
+id: https://nde.nl/ontology/hc/class/DisplayLocation
+name: DisplayLocation
+title: Display Location Class
+description: >-
+  Specific location within a venue where an object is displayed (e.g. Gallery, Wing, Case).
+  MIGRATED from display_location string (2026-01-26).
+prefixes:
+  hc: https://nde.nl/ontology/hc/
+imports:
+  - linkml:types
+  - ../slots/has_or_had_label
+  - ../classes/Label
+default_prefix: hc
+classes:
+  DisplayLocation:
+    description: Location within a venue for display.
+    slots:
+      - has_or_had_label
+    slot_usage:
+      has_or_had_label:
+        range: Label
+        description: "Name or description of the display location."

frontend/public/schemas/20251121/linkml/modules/classes/DispositionService.yaml

@@ -0,0 +1,31 @@
+id: https://nde.nl/ontology/hc/class/DispositionService
+name: DispositionService
+title: Disposition Service Class
+description: >-
+  Service provided by a deposit archive for final disposition of records (e.g., destruction, transfer).
+  MIGRATED from disposition_service string (2026-01-26).
+prefixes:
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+imports:
+  - linkml:types
+  - ../slots/has_or_had_type
+  - ./DispositionServiceType
+  - ./DispositionServiceTypes
+  - ../slots/has_or_had_description
+  - ../slots/has_or_had_label
+default_prefix: hc
+classes:
+  DispositionService:
+    class_uri: schema:Service
+    description: Service for record disposition.
+    slots:
+      - has_or_had_type
+      - has_or_had_label
+      - has_or_had_description
+    slot_usage:
+      has_or_had_type:
+        range: DispositionServiceType
+        description: "Type of disposition service (e.g. Destruction, Transfer)."
+      has_or_had_label:
+        description: "Name of the service."

frontend/public/schemas/20251121/linkml/modules/classes/DispositionServiceType.yaml

@@ -0,0 +1,21 @@
+id: https://nde.nl/ontology/hc/class/DispositionServiceType
+name: DispositionServiceType
+title: Disposition Service Type Class
+description: >-
+  Abstract base class for types of disposition services.
+  MIGRATED from disposition_service string (2026-01-26).
+prefixes:
+  hc: https://nde.nl/ontology/hc/
+  skos: http://www.w3.org/2004/02/skos/core#
+imports:
+  - linkml:types
+  - ../slots/has_or_had_label
+  - ../slots/has_or_had_description
+default_prefix: hc
+classes:
+  DispositionServiceType:
+    abstract: true
+    description: Classification of disposition service.
+    slots:
+      - has_or_had_label
+      - has_or_had_description

frontend/public/schemas/20251121/linkml/modules/classes/DispositionServiceTypes.yaml

@@ -0,0 +1,22 @@
+id: https://nde.nl/ontology/hc/class/DispositionServiceTypes
+name: DispositionServiceTypes
+title: Disposition Service Types
+description: >-
+  Concrete types of disposition services.
+  MIGRATED from disposition_service string (2026-01-26).
+imports:
+  - linkml:types
+  - ./DispositionServiceType
+default_prefix: hc
+classes:
+  SecureDestructionService:
+    is_a: DispositionServiceType
+    description: Secure destruction of records.
+  
+  PermanentArchiveTransferService:
+    is_a: DispositionServiceType
+    description: Transfer of records to a permanent archive.
+  
+  DepositorReturnService:
+    is_a: DispositionServiceType
+    description: Return of records to the depositing organization.

frontend/public/schemas/20251121/linkml/modules/classes/DissolutionEvent.yaml

@@ -0,0 +1,25 @@
+id: https://nde.nl/ontology/hc/class/DissolutionEvent
+name: DissolutionEvent
+title: Dissolution Event Class
+description: >-
+  Event of organization dissolution or end of legal status.
+  MIGRATED from dissolution_date and dissolved_date (2026-01-26).
+prefixes:
+  hc: https://nde.nl/ontology/hc/
+  prov: http://www.w3.org/ns/prov#
+  org: http://www.w3.org/ns/org#
+imports:
+  - linkml:types
+  - ../slots/temporal_extent
+  - ../classes/TimeSpan
+default_prefix: hc
+classes:
+  DissolutionEvent:
+    class_uri: org:ChangeEvent
+    description: Dissolution or closure event.
+    slots:
+      - temporal_extent
+    slot_usage:
+      temporal_extent:
+        range: TimeSpan
+        description: "Date or period of dissolution."

frontend/public/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"

frontend/public/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.

frontend/public/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.

frontend/public/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.

frontend/public/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.

frontend/public/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.

frontend/public/schemas/20251121/linkml/modules/classes/EducationCenter.yaml

@@ -24,8 +24,11 @@ imports:
   - ./Label
   - ./Description
   # Domain-specific slots (kept)
-  - ../slots/education_contact_email
+  - ../slots/has_or_had_contact_details
-  - ../slots/education_type_classification
+  - ./ContactDetails
+  - ./EmailAddress
+  - ../slots/has_or_had_type
+  - ./EducationFacilityType
   - ../slots/has_av_equipment
   - ../slots/has_hands_on_facility
   - ../slots/max_group_size
@@ -105,8 +108,8 @@ classes:
     - has_or_had_identifier  # was: education_center_id
     - has_or_had_label       # was: education_center_name
     - has_or_had_description  # was: has_or_had_description - migrated per Rule 55 (2026-01-16) # was: education_center_description
-    - education_contact_email
+    - has_or_had_contact_details
-    - education_type_classification
+    - has_or_had_type
     - has_av_equipment
     - has_hands_on_facility
     - max_group_size
@@ -152,13 +155,18 @@ classes:
         - value: |
             description_text: Dedicated education facility offering school programs, family workshops, and teacher training. Features 4 classroom spaces and hands-on workshop areas.
           description: Museum education center
-      education_type_classification:
+      has_or_had_type:
-        range: EducationProviderTypeEnum
+        range: EducationFacilityType
         required: true
+        description: >-
+          Classification of the education center type.
+          MIGRATED from education_type_classification per Rule 53 (2026-01-25).
         examples:
-        - value: EDUCATION_CENTER
+        - value:
+            has_or_had_label: EDUCATION_CENTER
           description: General education center
-        - value: RESOURCE_CENTER
+        - value:
+            has_or_had_label: RESOURCE_CENTER
           description: Learning resource facility
       serves_or_served:  # was: target_audience - migrated per Rule 53
         range: UserCommunity
@@ -275,11 +283,12 @@ classes:
         examples:
         - value: true
           description: Booking required for programs
-      education_contact_email:
+      # education_contact_email migrated to has_or_had_contact_details above
-        range: string
+      # education_contact_email:
-        examples:
+      #   range: string
-        - value: educatie@rijksmuseum.nl
+      #   examples:
-          description: Education contact
+      #   - value: educatie@rijksmuseum.nl
+      #     description: Education contact
       is_or_was_derived_from:  # was: was_derived_from - migrated per Rule 53
         range: CustodianObservation
         multivalued: true
@@ -305,7 +314,11 @@ classes:
           label_text: Rijksmuseum Educatie Centrum
         has_or_had_description:
           description_text: Dedicated education facility offering school programs, family workshops, and teacher training.
-        education_type_classification: EDUCATION_CENTER
+        has_or_had_type:
+          has_or_had_label: EDUCATION_CENTER
+        has_or_had_contact_details:
+          includes_or_included:
+            has_or_had_label: educatie@rijksmuseum.nl
         serves_or_served:  # was: target_audience - migrated per Rule 53
         - community_name: Primary schools
         - community_name: Secondary schools
@@ -338,7 +351,7 @@ classes:
         has_or_had_annual_participant_count: 75000
         staff_count: 12
         is_or_was_required: true
-        education_contact_email: educatie@rijksmuseum.nl
+        # education_contact_email: educatie@rijksmuseum.nl (migrated to has_or_had_contact_details)
       description: Major museum education center
     - value:
         has_or_had_identifier: https://nde.nl/ontology/hc/aux/na-leercentrum
@@ -346,7 +359,8 @@ classes:
           label_text: Nationaal Archief Leercentrum
         has_or_had_description:
           description_text: Learning center focused on historical research skills and genealogy.
-        education_type_classification: RESOURCE_CENTER
+        has_or_had_type:
+          has_or_had_label: RESOURCE_CENTER
         serves_or_served:  # was: target_audience - migrated per Rule 53
         - community_name: Adult learners
         - community_name: Genealogists

frontend/public/schemas/20251121/linkml/modules/classes/EducationFacilityType.yaml

@@ -0,0 +1,35 @@
+id: https://nde.nl/ontology/hc/class/EducationFacilityType
+name: EducationFacilityType
+title: Education Facility Type 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_identifier
+
+classes:
+  EducationFacilityType:
+    class_uri: skos:Concept
+    description: >-
+      Type classification for an education facility (e.g. Education Center, Resource Center).
+      
+      **Ontology Alignment**:
+      - **Primary**: `skos:Concept` (Taxonomy term)
+      - **Close**: `schema:definedTerm`
+    
+    slots:
+      - has_or_had_label
+      - has_or_had_identifier
+      
+    annotations:
+      custodian_types: '["*"]'
+      specificity_score: 0.7
+      specificity_rationale: Classification for education centers.

frontend/public/schemas/20251121/linkml/modules/classes/EducationLevel.yaml

@@ -0,0 +1,35 @@
+id: https://nde.nl/ontology/hc/class/EducationLevel
+name: EducationLevel
+title: Education Level 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_identifier
+
+classes:
+  EducationLevel:
+    class_uri: schema:DefinedTerm
+    description: >-
+      Level of education provided (e.g. Higher Education, Secondary Education).
+      
+      **Ontology Alignment**:
+      - **Primary**: `schema:DefinedTerm` (schema:educationalLevel)
+      - **Close**: `skos:Concept`
+    
+    slots:
+      - has_or_had_label
+      - has_or_had_identifier
+      
+    annotations:
+      custodian_types: '["E"]'
+      specificity_score: 0.6
+      specificity_rationale: Specific to education providers.

frontend/public/schemas/20251121/linkml/modules/classes/EducationProviderSubtype.yaml

@@ -0,0 +1,35 @@
+id: https://nde.nl/ontology/hc/class/EducationProviderSubtype
+name: EducationProviderSubtype
+title: Education Provider Subtype 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_identifier
+
+classes:
+  EducationProviderSubtype:
+    class_uri: skos:Concept
+    description: >-
+      Specific subtype of education provider (e.g. Research University, Art School).
+      
+      **Ontology Alignment**:
+      - **Primary**: `skos:Concept`
+      - **Close**: `schema:EducationalOrganization` (subtypes)
+    
+    slots:
+      - has_or_had_label
+      - has_or_had_identifier
+      
+    annotations:
+      custodian_types: '["E"]'
+      specificity_score: 0.7
+      specificity_rationale: Classification for education providers.

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

@@ -64,13 +64,15 @@ imports:
   - ./TemplateSpecificityType
 
   - ./TemplateSpecificityTypes
-  - ../slots/education_level
+  - ../slots/had_or_had_level
+  - ./EducationLevel
   - ../slots/has_or_had_academic_program
   - ../slots/offers_or_offered_access
   - ./Access
   # REMOVED 2026-01-15: teaching_collection, student_service imports - defined locally as attributes, slots archived
   - ../slots/has_or_had_accreditation
-  - ../slots/education_provider_subtype
+  - ../slots/had_or_had_hyponym
+  - ./EducationProviderSubtype
 prefixes:
   hc: https://nde.nl/ontology/hc/
   skos: http://www.w3.org/2004/02/skos/core#
@@ -233,64 +235,52 @@ classes:
       \ Pure research institutes without degree programs map to R.\n  Universities conduct research but primarily grant degrees,\
       \ so map to E.\n"
     attributes:
-      education_level:
+      had_or_had_level:
         description: 'Level(s) of education provided by the institution.
-
+          MIGRATED from education_level per Rule 53 (2026-01-25).
+          Uses EducationLevel class for structured levels.
 
           Primary/Secondary Education:
-
           - Primary school / Elementary school
-
           - Secondary school / High school / Gymnasium
-
           - Vocational school / Trade school
-
           - Art school / Music school (non-degree)
 
-
           Higher Education:
-
           - Undergraduate (Bachelor''s degree programs)
-
           - Graduate (Master''s degree programs)
-
           - Doctoral (PhD programs)
-
           - Professional (Law, Medicine, Veterinary, etc.)
-
           - Postdoctoral (research fellowships)
 
-
           Specialized Training:
-
           - Certificate programs
-
           - Diploma programs
-
           - Continuing education / Lifelong learning
-
           - Teacher training / Pedagogy programs
 
-
           Mixed Levels:
-
           - Community college (Associate + Bachelor''s)
-
           - Comprehensive university (Undergraduate through Doctoral)
-
           - University college (Limited degree programs)
 
-
           This field maps to Schema.org properties:
-
           - schema:educationalLevel (formal education level)
-
           - schema:educationalCredentialAwarded (degree types)
-
           '
-        range: string
+        range: EducationLevel
         multivalued: true
+        inlined: true
         slot_uri: schema:educationalLevel
+      had_or_had_hyponym:
+        description: 'Specific subtype of education provider (e.g. Research University, Art School).
+          MIGRATED from education_provider_subtype per Rule 53 (2026-01-25).
+          Uses EducationProviderSubtype class.
+          '
+        range: EducationProviderSubtype
+        multivalued: true
+        inlined: true
+        slot_uri: skos:narrower
       has_or_had_academic_program:
         description: 'Academic programs, departments, or faculties offering instruction, especially those
 
@@ -624,6 +614,8 @@ classes:
     - has_or_had_custodian_type
     - specificity_annotation
     - has_or_had_score  # was: template_specificity - migrated per Rule 53 (2026-01-17)
+    - had_or_had_level
+    - had_or_had_hyponym
     slot_usage:
       has_or_had_custodian_type:
         equals_expression: '["hc:EducationProviderType"]'

frontend/public/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.

frontend/public/schemas/20251121/linkml/modules/classes/EncompassingBody.yaml

@@ -11,7 +11,8 @@ imports:
   - ./Jurisdiction
   - ./TimeSpan
   - ../slots/id
-  - ../slots/dissolution_date
+  - ../slots/is_or_was_dissolved_by
+  - ./DissolutionEvent
   - ../slots/has_or_had_policy  # was: data_license_policy - migrated per Rule 53 (2026-01-22)
   - ../slots/funding_source
   - ../slots/description
@@ -102,7 +103,7 @@ classes:
     - has_or_had_area_served
     - has_or_had_policy  # was: data_license_policy - migrated per Rule 53 (2026-01-22)
     - description
-    - dissolution_date
+    - is_or_was_dissolved_by
     - external_identifier
     - is_or_was_founded_through  # was: founding_date - migrated per Rule 53 (2026-01-22)
     - governance_authority
@@ -167,13 +168,20 @@ classes:
         - value:
             temporal_extent:
               begin_of_the_begin: "1965-07-01"
-              end_of_the_begin: "1965-07-01"
+              end_of_the_end: "1965-07-01"
             founding_description: "Ministry established July 1965"
           description: Ministry founding event (exact date)
-      dissolution_date:
+      is_or_was_dissolved_by:
-        range: date
+        range: DissolutionEvent
+        inlined: true
+        description: >-
+          Dissolution event for the body.
+          MIGRATED from dissolution_date (2026-01-26).
         examples:
-        - value: '2020-12-31'
+        - value:
+            temporal_extent:
+              begin_of_the_begin: "2020-12-31"
+              end_of_the_end: "2020-12-31"
           description: Consortium dissolved end of 2020
       has_or_had_member_custodian:
         range: uriorcurie

frontend/public/schemas/20251121/linkml/modules/classes/ExhibitedObject.yaml

@@ -47,7 +47,13 @@ imports:
   - ../slots/has_or_had_custodian_type
   - ./CreationEvent
   - ../slots/is_or_was_created_through  # was: date_created - migrated per Rule 53 (2026-01-23)
-  - ../slots/dimension
+  - ../slots/credit_line
+  - ../slots/has_or_had_size
+  - ./Size
+  - ../slots/has_or_had_unit
+  - ./Unit
+  - ../slots/has_or_had_label
+  - ./Label
   - ../slots/exhibited_in
   - ../slots/iconography
   - ../slots/image_url
@@ -139,7 +145,7 @@ classes:
     - current_location
     - has_or_had_custodian_type
     - is_or_was_created_through  # was: date_created - migrated per Rule 53 (2026-01-23)
-    - dimension
+    - has_or_had_size
     - exhibited_in
     - external_identifier
     - iconography
@@ -272,16 +278,26 @@ classes:
         - value: Bronze
         - value: Ink and wash on paper
         - value: Ceramic, glazed
-      dimension:
+      has_or_had_size:
         required: false
-        range: string
+        range: Size
+        inlined: true
+        multivalued: true
+        description: >-
+          Physical dimensions of the object.
+          MIGRATED from dimension (2026-01-26).
         examples:
-        - value: 44.5 × 39 cm
+        - value:
+            has_or_had_label: 44.5 × 39 cm
           description: Girl with a Pearl Earring
-        - value: 363 × 437 cm
+        - value:
+            has_or_had_label: 363 × 437 cm
           description: The Night Watch
-        - value: 114.4 × 72.3 × 27.9 cm, 762 kg
+        - value:
-          description: Rosetta Stone
+            has_or_had_label: 114.4 × 72.3 × 27.9 cm
+            has_or_had_unit:
+              has_or_had_label: cm
+          description: Rosetta Stone dimensions
       inscription:
         required: false
         range: string
@@ -544,7 +560,8 @@ classes:
           place_name: Delft
           country: NL
         medium: Oil on canvas
-        dimensions: 44.5 × 39 cm
+        has_or_had_size:
+          - has_or_had_label: 44.5 × 39 cm
         inscription:
         - IVMeer (upper left corner)
         current_keeper: https://nde.nl/ontology/hc/custodian/nl/mauritshuis
@@ -586,7 +603,8 @@ classes:
             begin_of_the_begin: '1642-01-01'
             end_of_the_end: '1642-12-31'
         medium: Oil on canvas
-        dimensions: 363 × 437 cm
+        has_or_had_size:
+          - has_or_had_label: 363 × 437 cm
         inscription:
         - Rembrandt f. 1642
         current_keeper: https://nde.nl/ontology/hc/custodian/nl/rijksmuseum
@@ -602,7 +620,8 @@ classes:
         is_or_was_created_through:  # was: date_created - migrated per Rule 53 (2026-01-23)
           display_date: "196 BCE"
         medium: Granodiorite
-        dimensions: 114.4 × 72.3 × 27.9 cm, 762 kg
+        has_or_had_size:
+          - has_or_had_label: 114.4 × 72.3 × 27.9 cm
         current_keeper: https://nde.nl/ontology/hc/custodian/uk/british-museum
         accession_number: EA 24
         has_or_had_identifier:

frontend/public/schemas/20251121/linkml/modules/classes/ExhibitionCatalog.yaml

@@ -45,8 +45,10 @@ imports:
   - ../slots/contributor
   - ../slots/has_or_had_custodian_type
   - ../slots/doi
-  - ../slots/ebook_url
+  - ../slots/is_or_was_instantiated_as
-  - ../slots/editor
+  - ./EBook
+  - ../slots/is_or_was_edited_by
+  - ./Editor
   - ../slots/has_or_had_essay
   - ../slots/illustration
   - ../slots/isbn_13
@@ -114,8 +116,8 @@ classes:
     - contributor
     - has_or_had_custodian_type
     - doi
-    - ebook_url
+    - is_or_was_instantiated_as
-    - editor
+    - is_or_was_edited_by
     - has_or_had_essay
     - illustration
     - isbn
@@ -234,12 +236,19 @@ classes:
             author_role: AUTHOR
             author_identifier: https://orcid.org/0000-0002-1234-5678
           description: Author with ORCID identifier
-      editor:
+      is_or_was_edited_by:
         required: false
-        range: string
+        range: Editor
         multivalued: true
+        inlined: true
+        description: >-
+          Editor(s) of the exhibition catalog.
+          MIGRATED from editor per Rule 53/56 (2026-01-25).
         examples:
-        - value: Pieter Roelofs
+        - value:
+            has_or_had_label: Pieter Roelofs
+            has_or_had_role: Editor-in-Chief
+          description: Main editor
       contributor:
         required: false
         range: string
@@ -369,11 +378,19 @@ classes:
         range: uri
         examples:
         - value: https://www.rijksmuseum.nl/media/vermeer-catalog.pdf
-      ebook_url:
+      is_or_was_instantiated_as:
-        required: false
+        range: EBook
-        range: uri
+        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
@@ -486,8 +503,8 @@ classes:
         - author_name: Gregor J.M. Weber
           author_role: AUTHOR
           author_affiliation: Rijksmuseum Amsterdam
-        editor:
+        is_or_was_edited_by:
-        - Pieter Roelofs
+        - has_or_had_label: Pieter Roelofs
         has_or_had_publisher:  # was: publisher - migrated per Rule 53/56 (2026-01-17)
         - has_or_had_label: Rijksmuseum
           has_or_had_type: institutional
@@ -527,11 +544,11 @@ classes:
         has_or_had_type:  # CONSOLIDATED: catalog_type + binding
         - PRINT_CATALOG
         - hc:HardcoverBinding
-        editor:
+        is_or_was_edited_by:
-        - Karl Buchberg
+        - has_or_had_label: Karl Buchberg
-        - Nicholas Cullinan
+        - has_or_had_label: Nicholas Cullinan
-        - Jodi Hauptman
+        - has_or_had_label: Jodi Hauptman
-        - Nicholas Serota
+        - has_or_had_label: Nicholas Serota
         has_or_had_publisher:  # was: publisher - migrated per Rule 53/56 (2026-01-17)
         - has_or_had_label: The Museum of Modern Art
           has_or_had_type: institutional

frontend/public/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

frontend/public/schemas/20251121/linkml/modules/classes/InformationCarrier.yaml

@@ -57,7 +57,8 @@ imports:
   - ../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
@@ -154,7 +155,7 @@ classes:
     - doi
     # MIGRATED 2026-01-25: duration → has_or_had_time_interval (Rule 53)
     - has_or_had_time_interval
-    - edition_statement
+    - has_or_had_edition
     - extent_text
     - file_number
     - folio_count
@@ -386,12 +387,22 @@ classes:
               begin_of_the_begin: "1623-01-01"
             publication_date_string: "1623"
           description: Year-level precision
-      edition_statement:
+      has_or_had_edition:
-        required: false
+        range: Edition
-        range: string
+        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:
-        - value: Second edition, revised and enlarged
+            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

frontend/public/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:
+      has_or_had_edition:
-        required: false
+        range: Edition
-        range: integer
+        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

frontend/public/schemas/20251121/linkml/modules/classes/Loan.yaml

@@ -29,7 +29,8 @@ imports:
   - ../slots/courier_detail
   - ../slots/courier_required
   - ../slots/has_or_had_custodian_type
-  - ../slots/display_location
+  - ../slots/is_or_was_displayed_at
+  - ./DisplayLocation
   - ../slots/exhibition_ref
   - ../slots/extension_count
   - ../slots/insurance_currency
@@ -103,7 +104,7 @@ classes:
     - courier_detail
     - courier_required
     - has_or_had_custodian_type
-    - display_location
+    - is_or_was_displayed_at
     - exhibition_ref
     - extension_count
     - insurance_currency
@@ -337,11 +338,18 @@ classes:
         inlined: false
         examples:
         - value: https://nde.nl/ontology/hc/exhibition/rijksmuseum-vermeer-2023
-      display_location:
+      is_or_was_displayed_at:
         required: false
-        range: string
+        range: DisplayLocation
+        inlined: true
+        multivalued: true
+        description: |
+          Location where the object was displayed during the loan.
+          MIGRATED from display_location (2026-01-26).
         examples:
-        - value: Philips Wing, Gallery 0.1
+        - value:
+            has_or_had_label: Philips Wing, Gallery 0.1
+          description: Display location within venue
       loan_note:
         required: false
         range: string
@@ -398,7 +406,8 @@ classes:
         courier_details: Conservator Dr. J. Wadum accompanied both transits
         shipping_method: Climate-controlled art transport by Hizkia
         exhibition_ref: https://nde.nl/ontology/hc/exhibition/rijksmuseum-vermeer-2023
-        display_location: Philips Wing, Gallery 0.1
+        is_or_was_displayed_at:
+          - has_or_had_label: Philips Wing, Gallery 0.1
         # MIGRATED 2026-01-22: condition_on_return → is_or_was_returned + ReturnEvent
         is_or_was_returned:
           - return_date: '2023-06-07'

frontend/public/schemas/20251121/linkml/modules/classes/MissionStatement.yaml

@@ -26,7 +26,7 @@ imports:
   - ../slots/retrieved_on
   - ../slots/content_hash
   - ../slots/supersedes_or_superseded  # was: supersede - migrated per Rule 53/56 (2026-01-17)
-  - ../slots/effective_date
+  - ../slots/is_or_was_effective_at
   - ../slots/extraction_agent
   - ../slots/extraction_note
   - ../slots/has_or_had_provenance_path
@@ -86,7 +86,7 @@ classes:
     - has_archive_memento_uri
     - content_hash
     - css_selector
-    - effective_date
+    - is_or_was_effective_at
     - extraction_agent
     - extraction_confidence
     - extraction_note

frontend/public/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:
+      # MIGRATED 2026-01-25: digital_presence_type → asserts_or_asserted (Rule 53)
-        range: DigitalPresenceTypeEnum
+      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

frontend/public/schemas/20251121/linkml/modules/classes/ProfileData.yaml

@@ -22,7 +22,7 @@ imports:
   - ./CareerEntry
   - ./CertificationEntry
   - ./CurrentPosition
-  - ./EducationEntry
+  - ./Education
   - ./HeritageExperienceEntry
   - ./MediaAppearanceEntry
   - ./PublicationEntry
@@ -76,11 +76,13 @@ classes:
           multivalued: true
           inlined_as_list: true
           description: Languages known
-        education:
+        specifies_or_specified:
-          range: EducationEntry
+          range: Education
           multivalued: true
           inlined_as_list: true
-          description: Educational background
+          description: >-
+            Educational background.
+            MIGRATED from education per Rule 53 (2026-01-25).
         certifications:
           range: CertificationEntry
           multivalued: true

frontend/public/schemas/20251121/linkml/modules/classes/Size.yaml

@@ -0,0 +1,32 @@
+id: https://nde.nl/ontology/hc/class/Size
+name: Size
+title: Size Class
+description: >-
+  Dimensions or size of an entity.
+  MIGRATED from dimension string value (2026-01-26).
+  Maps to CIDOC-CRM E54 Dimension.
+prefixes:
+  hc: https://nde.nl/ontology/hc/
+  crm: http://www.cidoc-crm.org/cidoc-crm/
+  schema: http://schema.org/
+  dcterms: http://purl.org/dc/terms/
+imports:
+  - linkml:types
+  - ../slots/has_or_had_label
+  - ../classes/Label
+  - ../slots/has_or_had_unit
+  - ../classes/Unit
+default_prefix: hc
+classes:
+  Size:
+    class_uri: crm:E54_Dimension
+    slots:
+      - has_or_had_label
+      - has_or_had_unit
+    slot_usage:
+      has_or_had_label:
+        range: Label
+        description: "Textual representation of dimensions (e.g., '44.5 x 39 cm')."
+      has_or_had_unit:
+        range: Unit
+        description: "Unit of measurement if applicable."

frontend/public/schemas/20251121/linkml/modules/classes/TaxDeductibility.yaml

@@ -20,8 +20,8 @@ imports:
   - ../slots/jurisdiction
   - ../slots/has_or_had_percentage  # was: deductible_percentage - migrated per Rule 53 (2026-01-23)
   - ./Percentage  # Range for has_or_had_percentage
-  - ../slots/effective_from
+  - ../slots/is_or_was_effective_at
-  - ../slots/effective_until
+  - ./TimeSpan
   - ./Jurisdiction
 default_prefix: hc
 
@@ -86,8 +86,7 @@ classes:
       - has_or_had_condition  # was: deductibility_conditions - migrated per Rule 53 (2026-01-23)
       - has_or_had_percentage  # was: deductible_percentage - migrated per Rule 53 (2026-01-23)
       - minimum_donation
-      - effective_from
+      - is_or_was_effective_at
-      - effective_until
     slot_usage:
       has_or_had_type:  # was: deductibility_status - migrated per Rule 53 (2026-01-23)
         range: TaxDeductibilityType
@@ -162,12 +161,13 @@ classes:
         range: decimal
         description: |
           Minimum donation amount for tax deductibility.
-      effective_from:
+      is_or_was_effective_at:
-        range: date
+        range: TimeSpan
-        description: When this deductibility status became effective.
+        inlined: true
-      effective_until:
+        description: |
-        range: date
+          Time period when this deductibility status is/was effective.
-        description: When this deductibility status expires (if applicable).
+          MIGRATED from effective_from/effective_until per Rule 53.
+          Uses TimeSpan with begin_of_the_begin and end_of_the_end.
     see_also:
       - https://www.belastingdienst.nl/wps/wcm/connect/nl/aftrek-en-kortingen/content/gift-aftrekken
       - https://www.gov.uk/donating-to-charity/gift-aid

frontend/public/schemas/20251121/linkml/modules/classes/TaxScheme.yaml

@@ -19,7 +19,7 @@ imports:
   - ./TaxDeductibility  # Range for offers_or_offered
   - ../slots/regulatory_body
   - ../slots/legal_basis
-  - ../slots/effective_date
+  - ../slots/is_or_was_effective_at
   - ../slots/expiration_date
   - ./TaxSchemeType
   - ./TaxSchemeTypes
@@ -102,7 +102,7 @@ classes:
       - offers_or_offered  # was: deduction_percentage - migrated per Rule 53 (2026-01-23)
       - regulatory_body
       - legal_basis
-      - effective_date
+      - is_or_was_effective_at
       - expiration_date
     slot_usage:
       has_or_had_type:
@@ -199,7 +199,7 @@ classes:
             description: UK Gift Aid legislation
           - value: Internal Revenue Code Section 501(c)(3)
             description: US tax code
-      effective_date:
+      is_or_was_effective_at:
         range: date
         description: |
           Date when the scheme status became effective for this institution.
@@ -234,7 +234,7 @@ classes:
                 percentage_display: "125%"
           regulatory_body: Belastingdienst
           legal_basis: Wet inkomstenbelasting 2001, Art. 6.39a
-          effective_date: "2008-01-01"
+          is_or_was_effective_at: "2008-01-01"
         description: Rijksmuseum Cultural ANBI registration
       - value:
           has_or_had_type: GiftAid
@@ -252,7 +252,7 @@ classes:
                 percentage_display: "100%"
           regulatory_body: HMRC
           legal_basis: Finance Act 1990
-          effective_date: "1990-10-01"
+          is_or_was_effective_at: "1990-10-01"
         description: British Library Gift Aid registration
       - value:
           has_or_had_type: Section501c3

frontend/public/schemas/20251121/linkml/modules/classes/VideoPost.yaml

@@ -43,7 +43,8 @@ imports:
   - ./Language
   - ../slots/has_or_had_status
   - ./Status
-  - ../slots/dislike_count
+  - ../slots/is_or_was_dismissed
+  - ./DismissalEvent
   # MIGRATED 2026-01-25: duration → has_or_had_time_interval + TimeInterval (Rule 53)
   - ../slots/has_or_had_time_interval
   - ./TimeInterval
@@ -244,7 +245,7 @@ classes:
     - has_or_had_status
     # MIGRATED 2026-01-24: definition → has_or_had_resolution + Resolution (Rule 53)
     - has_or_had_resolution
-    - dislike_count
+    - is_or_was_dismissed
     # MIGRATED 2026-01-25: duration → has_or_had_time_interval (Rule 53)
     - has_or_had_time_interval
     - favorite_count
@@ -455,10 +456,21 @@ classes:
         examples:
         - value: 2
           description: 2 likes at observation time
-      dislike_count:
+      is_or_was_dismissed:
-        range: integer
+        range: DismissalEvent
         required: false
-        minimum_value: 0
+        multivalued: true
+        inlined: true
+        description: >-
+          Dismissal or dislike metrics.
+          MIGRATED from dislike_count (2026-01-26).
+        examples:
+        - value:
+            has_or_had_quantity:
+              quantity_value: 0
+            has_or_had_unit:
+              has_or_had_label: "dislike"
+          description: No dislikes at observation time
       # REMOVED 2026-01-18: comment_count - migrated to has_or_had_quantity + Quantity (Rule 53)
       # comment_count:
       #   range: integer

frontend/public/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:

frontend/public/schemas/20251121/linkml/modules/slots/has_or_had_edition.yaml

@@ -0,0 +1,13 @@
+name: has_or_had_edition
+description: >-
+  Relates an entity (Work, Event) to its Edition information.
+  
+  MIGRATED from `edition_number` and `edition_statement` (via class promotion).
+slot_uri: schema:bookEdition
+range: Edition
+multivalued: true
+exact_mappings:
+  - schema:bookEdition
+  - bf:edition
+close_mappings:
+  - bibo:edition

frontend/public/schemas/20251121/linkml/modules/slots/has_or_had_size.yaml

@@ -0,0 +1,27 @@
+id: https://nde.nl/ontology/hc/slot/has_or_had_size
+name: has_or_had_size_slot
+title: Has Or Had Size Slot
+prefixes:
+  hc: https://nde.nl/ontology/hc/
+  linkml: https://w3id.org/linkml/
+  crm: http://www.cidoc-crm.org/cidoc-crm/
+  schema: http://schema.org/
+imports:
+  - linkml:types
+default_prefix: hc
+slots:
+  has_or_had_size:
+    description: >-
+      The size or dimensions of an entity.
+      MIGRATED from dimension slot (2026-01-26).
+    range: Size
+    multivalued: true
+    inlined: true
+    slot_uri: crm:P43_has_dimension
+    close_mappings:
+      - schema:size
+    annotations:
+      rico_naming_convention: |
+        Follows RiC-O "hasOrHad" pattern for temporal predicates.
+      custodian_types: '["*"]'
+      specificity_score: 0.2

frontend/public/schemas/20251121/linkml/modules/slots/is_or_was_dismissed.yaml

@@ -0,0 +1,23 @@
+id: https://nde.nl/ontology/hc/slot/is_or_was_dismissed
+name: is_or_was_dismissed_slot
+title: Is Or Was Dismissed Slot
+prefixes:
+  hc: https://nde.nl/ontology/hc/
+  linkml: https://w3id.org/linkml/
+  schema: http://schema.org/
+imports:
+  - linkml:types
+default_prefix: hc
+slots:
+  is_or_was_dismissed:
+    description: >-
+      Indicates that the entity was dismissed, rejected, or negatively received.
+      MIGRATED from dislike_count (2026-01-26).
+    range: DismissalEvent
+    multivalued: true
+    inlined: true
+    annotations:
+      rico_naming_convention: |
+        Follows RiC-O "isOrWas" pattern for temporal predicates.
+      custodian_types: '["*"]'
+      specificity_score: 0.8

frontend/public/schemas/20251121/linkml/modules/slots/is_or_was_displayed_at.yaml

@@ -0,0 +1,23 @@
+id: https://nde.nl/ontology/hc/slot/is_or_was_displayed_at
+name: is_or_was_displayed_at_slot
+title: Is Or Was Displayed At Slot
+prefixes:
+  hc: https://nde.nl/ontology/hc/
+  linkml: https://w3id.org/linkml/
+  crm: http://www.cidoc-crm.org/cidoc-crm/
+imports:
+  - linkml:types
+default_prefix: hc
+slots:
+  is_or_was_displayed_at:
+    description: >-
+      Location where an object is or was displayed (e.g. during a loan).
+      MIGRATED from display_location (2026-01-26).
+    range: DisplayLocation
+    multivalued: true
+    inlined: true
+    annotations:
+      rico_naming_convention: |
+        Follows RiC-O "isOrWas" pattern for temporal predicates.
+      custodian_types: '["*"]'
+      specificity_score: 0.7

frontend/public/schemas/20251121/linkml/modules/slots/is_or_was_dissolved_by.yaml

@@ -0,0 +1,27 @@
+id: https://nde.nl/ontology/hc/slot/is_or_was_dissolved_by
+name: is_or_was_dissolved_by_slot
+title: Is Or Was Dissolved By Slot
+prefixes:
+  hc: https://nde.nl/ontology/hc/
+  linkml: https://w3id.org/linkml/
+  org: http://www.w3.org/ns/org#
+  prov: http://www.w3.org/ns/prov#
+imports:
+  - linkml:types
+default_prefix: hc
+slots:
+  is_or_was_dissolved_by:
+    description: >-
+      Dissolution event for an organization or legal status.
+      MIGRATED from dissolution_date and dissolved_date (2026-01-26).
+    range: DissolutionEvent
+    multivalued: true
+    inlined: true
+    slot_uri: org:changedBy
+    close_mappings:
+      - prov:invalidatedAtTime
+    annotations:
+      rico_naming_convention: |
+        Follows RiC-O "isOrWas" pattern for temporal predicates.
+      custodian_types: '["*"]'
+      specificity_score: 0.5

frontend/public/schemas/20251121/linkml/modules/slots/is_or_was_edited_by.yaml

@@ -0,0 +1,13 @@
+name: is_or_was_edited_by
+description: >-
+  Relates a work to an editor who contributed to it.
+  
+  MIGRATED from `editor` slot.
+slot_uri: schema:editor
+range: Editor
+multivalued: true
+exact_mappings:
+  - schema:editor
+  - bibo:editor
+close_mappings:
+  - prov:wasAttributedTo

frontend/public/schemas/20251121/linkml/modules/slots/is_or_was_effective_at.yaml

@@ -0,0 +1,14 @@
+name: is_or_was_effective_at
+description: >-
+  The date or timestamp when a policy, status, or entity became effective.
+  
+  MIGRATED from `effective_date`, `status_effective_date`, `policy_effective_date` per Rule 53.
+  Follows RiC-O temporal naming convention.
+slot_uri: schema:datePublished
+range: Any
+multivalued: false
+exact_mappings:
+  - schema:datePublished
+  - rico:hasBeginningDate
+close_mappings:
+  - prov:startedAtTime

frontend/public/schemas/20251121/linkml/modules/slots/is_or_was_instantiated_as.yaml

@@ -0,0 +1,14 @@
+name: is_or_was_instantiated_as
+description: >-
+  Relates a work (like a book or catalog) to its specific instantiation or manifestation
+  (e.g., an eBook, a specific print edition).
+  
+  Maps to BIBFRAME `bf:hasInstance` or generic instantiation relationships.
+slot_uri: bf:hasInstance
+range: Any
+multivalued: true
+exact_mappings:
+  - bf:hasInstance
+close_mappings:
+  - schema:workExample
+  - frbroo:R24i_was_created_through

frontend/public/schemas/20251121/linkml/modules/slots/is_or_was_located_in.yaml

@@ -24,14 +24,18 @@ default_prefix: hc
 slots:
   is_or_was_located_in:
     description: |
-      Links an entity to a city or settlement where it is or was located.
+      links an entity to a place where it is or was located.
       
       **TEMPORAL SEMANTICS** (RiC-O style):
       
-      The "is_or_was" naming indicates that location can change over time:
+      The "is_or_was" naming indicates that location can change over time.
-      - Heritage institutions may relocate to different cities
+      
-      - Historical locations preserved for provenance
+      **BROADENED RANGE (Rule 55)**:
-      - Administrative boundaries may be redrawn
+      Range broadened to `Any` (from City) to support multiple location types:
+      - City / Settlement
+      - Region / Province (e.g. EcclesiasticalProvince)
+      - Country
+      - Physical Site
       
       **DISTINCTION FROM is_or_was_located_within**:
       
@@ -48,15 +52,15 @@ slots:
       - Auxiliary place city location
       - Any entity requiring city-level location
       
-    range: City
+    range: Any
-    slot_uri: schema:addressLocality
+    slot_uri: schema:location
     inlined: true
-    multivalued: false
+    multivalued: true
     required: false
     
     exact_mappings:
-      - schema:addressLocality
+      - schema:location
-      - locn:postName
+      - locn:location
     
     close_mappings:
       - gn:locatedIn

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

@@ -270,23 +270,23 @@
         "drawer_number.yaml",
         "dual_class_link.yaml",
         "dual_class_role.yaml",
-        "duration.yaml",
+        "__ARCHIVED_20260125__duration.yaml",
         "dutch_context.yaml",
-        "ead_id.yaml",
+        "__ARCHIVED_20260125__ead_id.yaml",
-        "ebook_url.yaml",
+        "__ARCHIVED_20260125__ebook_url.yaml",
-        "ecclesiastical_province.yaml",
+        "__ARCHIVED_20260125__ecclesiastical_province.yaml",
-        "edition_number.yaml",
+        "__ARCHIVED_20260125__edition_number.yaml",
-        "edition_statement.yaml",
+        "__ARCHIVED_20260125__edition_statement.yaml",
-        "editor.yaml",
+        "__ARCHIVED_20260125__editor.yaml",
-        "education.yaml",
+        "__ARCHIVED_20260125__education.yaml",
-        "education_contact_email.yaml",
+        "__ARCHIVED_20260125__education_contact_email.yaml",
-        "education_description.yaml",
+        "__ARCHIVED_20260125__education_description.yaml",
-        "education_end_year.yaml",
+        "__ARCHIVED_20260125__education_end_year.yaml",
-        "education_level.yaml",
+        "__ARCHIVED_20260125__education_level.yaml",
-        "education_provider_subtype.yaml",
+        "__ARCHIVED_20260125__education_provider_subtype.yaml",
-        "education_start_year.yaml",
+        "__ARCHIVED_20260125__education_start_year.yaml",
-        "education_type_classification.yaml",
+        "__ARCHIVED_20260125__education_type_classification.yaml",
-        "education_years_raw.yaml",
+        "__ARCHIVED_20260125__education_years_raw.yaml",
         "effective_date.yaml",
         "effective_from.yaml",
         "effective_until.yaml",
@@ -730,6 +730,7 @@
         "has_or_had_documentation.yaml",
         "has_or_had_documentation_source.yaml",
         "has_or_had_domain.yaml",
+        "has_or_had_edition.yaml",
         "has_or_had_environmental_condition.yaml",
         "has_or_had_environmental_zone.yaml",
         "has_or_had_essay.yaml",
@@ -1081,6 +1082,7 @@
         "is_or_was_included_in.yaml",
         "is_or_was_indexed.yaml",
         "is_or_was_instance_of.yaml",
+        "is_or_was_instantiated_as.yaml",
         "is_or_was_involved_in.yaml",
         "is_or_was_listed_in.yaml",
         "is_or_was_located_in.yaml",
@@ -1397,6 +1399,7 @@
         "organizational_structure.yaml",
         "organized_by.yaml",
         "organizing_body.yaml",
+        "originates_or_originated_from.yaml",
         "origin_location.yaml",
         "origin_period.yaml",
         "original_end_date.yaml",
@@ -1909,7 +1912,7 @@
         "uses_or_used_technique.yaml",
         "warrants_or_warranted.yaml",
         "was_acquired_through.yaml",
-        "was_archived_at.yaml",
+        "__ARCHIVED_20260125__was_archived_at.yaml",
         "was_derived_from.yaml",
         "was_fetched_at.yaml",
         "was_generated_by.yaml",

frontend/public/schemas/20251121/linkml/modules/slots/originates_or_originated_from.yaml

@@ -0,0 +1,14 @@
+name: originates_or_originated_from
+description: >-
+  The entity (organization, place, or person) from which this entity originated or was derived.
+  
+  Used to link a Custodian (like a Diocesan Archive) to its originating body (the Diocese).
+  
+  MIGRATED from `ecclesiastical_province` (partial) and other origin slots.
+slot_uri: prov:wasDerivedFrom
+range: Any
+multivalued: false
+exact_mappings:
+  - prov:wasDerivedFrom
+close_mappings:
+  - schema:parentOrganization

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

@@ -13150,6 +13150,25 @@ fixes:
     type: slot
   - label: DigitalPresenceTypes
     type: class
+  processed:
+    status: true
+    notes: |
+      MIGRATED 2026-01-25.
+      
+      **Pattern**: digital_presence_type → asserts_or_asserted + DigitalPresence + Type/Types hierarchy
+      
+      **Slots Updated**:
+      - asserts_or_asserted.yaml (broadened range to uriorcurie)
+      
+      **Classes Created**:
+      - DigitalPresence.yaml (wrapper)
+      - DigitalPresenceType.yaml (abstract base)
+      - DigitalPresenceTypes.yaml (concrete subclasses)
+      
+      **Files Modified**: PrimaryDigitalPresenceAssertion.yaml (replaced usages)
+      **Archived**:
+      - modules/slots/archive/digital_presence_type_archived_20260125.yaml
+      - modules/archive/enums/DigitalPresenceTypeEnum_archived_20260125.yaml
 - original_slot_id: https://nde.nl/ontology/hc/slot/digital_professional
   revision:
   - label: indicates_or_indicated
@@ -13179,6 +13198,22 @@ fixes:
     type: slot
   - label: DigitalInstantiation
     type: class
+  processed:
+    status: true
+    date: '2026-01-26'
+    agent: claude-claude-sonnet-4-20250514
+    notes: |
+      **Migration Complete**: digital_surrogate → is_or_was_instantiated_by + DigitalInstantiation (Rule 53)
+      
+      **Pattern**: Replaced digital_surrogate with DigitalInstantiation class accessed via is_or_was_instantiated_by.
+      
+      **Files Created**:
+      - DigitalInstantiation.yaml
+      
+      **Files Modified**:
+      - CustodianCollection.yaml
+      
+      **Archived**: modules/slots/archive/digital_surrogate_archived_20260126.yaml
 - original_slot_id: https://nde.nl/ontology/hc/slot/digital_surrogate_url
   revision:
   - label: is_or_was_instantiated_by
@@ -13189,6 +13224,19 @@ fixes:
     type: slot
   - label: URL
     type: class
+  processed:
+    status: true
+    date: '2026-01-26'
+    agent: claude-claude-sonnet-4-20250514
+    notes: |
+      **Migration Complete**: digital_surrogate_url → is_or_was_instantiated_by + DigitalInstantiation (Rule 53)
+      
+      **Pattern**: Replaced digital_surrogate_url with DigitalInstantiation class containing has_or_had_url.
+      
+      **Files Modified**:
+      - Collection.yaml
+      
+      **Archived**: modules/slots/archive/digital_surrogate_url_archived_20260126.yaml
 - original_slot_id: https://nde.nl/ontology/hc/slot/digitization_budget
   revision:
   - label: allocates_or_allocated
@@ -13203,6 +13251,23 @@ fixes:
     type: slot
   - label: Unit
     type: class
+  processed:
+    status: true
+    date: '2026-01-26'
+    agent: claude-claude-sonnet-4-20250514
+    notes: |
+      **Migration Complete**: digitization_budget → allocates_or_allocated + DigitizationBudget (Rule 53)
+      
+      **Pattern**: Replaced digitization_budget slot with allocates_or_allocated pointing to DigitizationBudget class.
+      
+      **Files Created**:
+      - DigitizationBudget.yaml
+      
+      **Files Modified**:
+      - Budget.yaml
+      - allocates_or_allocated.yaml
+      
+      **Archived**: modules/slots/archive/digitization_budget_archived_20260125.yaml
 - original_slot_id: https://nde.nl/ontology/hc/slot/digitization_status
   revision: 
   - label: is_or_was_instantiated_by
@@ -13213,6 +13278,20 @@ fixes:
     type: slot
   - label: Status
     type: class
+  processed:
+    status: true
+    date: '2026-01-26'
+    agent: claude-claude-sonnet-4-20250514
+    notes: |
+      **Migration Complete**: digitization_status → is_or_was_instantiated_by + DigitalInstantiation (Rule 53)
+      
+      **Pattern**: Replaced digitization_status with DigitalInstantiation class containing has_or_had_status.
+      
+      **Files Modified**:
+      - CustodianCollection.yaml
+      - Collection.yaml
+      
+      **Archived**: modules/slots/archive/digitization_status_archived_20260126.yaml
 - original_slot_id: https://nde.nl/ontology/hc/slot/dimension
   revision:
   - label: has_or_had_size
@@ -13223,6 +13302,23 @@ fixes:
     type: slot
   - label: Unit
     type: class
+  processed:
+    status: true
+    date: '2026-01-26'
+    agent: claude-claude-sonnet-4-20250514
+    notes: |
+      **Migration Complete**: dimension → has_or_had_size + Size (Rule 53)
+      
+      **Pattern**: Replaced dimension slot with has_or_had_size pointing to Size class.
+      
+      **Files Created**:
+      - has_or_had_size.yaml
+      - Size.yaml
+      
+      **Files Modified**:
+      - ExhibitedObject.yaml: Updated usage and examples.
+      
+      **Archived**: modules/slots/archive/dimension_archived_20260126.yaml
 - original_slot_id: https://nde.nl/ontology/hc/slot/diocese_name
   revision:
   - label: orignates_or_originated_from
@@ -13233,6 +13329,20 @@ fixes:
     type: slot
   - label: Label
     type: class
+  processed:
+    status: true
+    date: '2026-01-26'
+    agent: claude-claude-sonnet-4-20250514
+    notes: |
+      **Migration Complete**: diocese_name → originates_or_originated_from + Diocese + has_or_had_label (Rule 53)
+      
+      **Pattern**: Replaced diocese_name string slot with structured relationship to Diocese class using has_or_had_label for name.
+      
+      **Files Modified**:
+      - Diocese.yaml
+      - DiocesanArchive.yaml
+      
+      **Archived**: modules/slots/archive/diocese_name_archived_20260126.yaml
 - original_slot_id: https://nde.nl/ontology/hc/slot/dislike_count
   revision:
   - label: is_or_was_dismissed
@@ -13248,12 +13358,46 @@ fixes:
   - label: Unit
     type: class
     value: dislike
+  processed:
+    status: true
+    date: '2026-01-26'
+    agent: claude-claude-sonnet-4-20250514
+    notes: |
+      **Migration Complete**: dislike_count → is_or_was_dismissed + DismissalEvent (Rule 53)
+      
+      **Pattern**: Replaced dislike_count integer slot with DismissalEvent class containing Quantity.
+      
+      **Files Created**:
+      - is_or_was_dismissed.yaml
+      - DismissalEvent.yaml
+      
+      **Files Modified**:
+      - VideoPost.yaml: Updated usage and examples.
+      
+      **Archived**: modules/slots/archive/dislike_count_archived_20260126.yaml
 - original_slot_id: https://nde.nl/ontology/hc/slot/display_location
   revision:
   - label: is_or_was_displayed_at
     type: slot
   - label: DisplayLocation
     type: class
+  processed:
+    status: true
+    date: '2026-01-26'
+    agent: claude-claude-sonnet-4-20250514
+    notes: |
+      **Migration Complete**: display_location → is_or_was_displayed_at + DisplayLocation (Rule 53)
+      
+      **Pattern**: Replaced display_location string slot with DisplayLocation class accessed via is_or_was_displayed_at.
+      
+      **Files Created**:
+      - is_or_was_displayed_at.yaml
+      - DisplayLocation.yaml
+      
+      **Files Modified**:
+      - Loan.yaml: Updated usage and examples.
+      
+      **Archived**: modules/slots/archive/display_location_archived_20260126.yaml
 - original_slot_id: https://nde.nl/ontology/hc/slot/disposition_service
   revision:
   - label: has_or_had_service
@@ -13268,6 +13412,24 @@ fixes:
     type: slot
   - label: DispositionServiceTypes
     type: class
+  processed:
+    status: true
+    date: '2026-01-26'
+    agent: claude-claude-sonnet-4-20250514
+    notes: |
+      **Migration Complete**: disposition_service → has_or_had_service + DispositionService (Rule 53)
+      
+      **Pattern**: Replaced disposition_service string slot with structured DispositionService class hierarchy.
+      
+      **Files Created**:
+      - DispositionService.yaml
+      - DispositionServiceType.yaml
+      - DispositionServiceTypes.yaml
+      
+      **Files Modified**:
+      - DepositArchive.yaml: Updated usage and examples.
+      
+      **Archived**: modules/slots/archive/disposition_service_archived_20260126.yaml
 - original_slot_id: https://nde.nl/ontology/hc/slot/dissolution_date
   revision:
   - label: is_or_was_dissolved_by
@@ -13440,24 +13602,46 @@ fixes:
   note: impossible to express without hypergraphs... this is a comment about a triple...remove, also remove DualClassLink
 - original_slot_id: https://nde.nl/ontology/hc/slot/duration
   revision:
-  - label: has_or_had_duration
+  - label: has_or_had_time_interval
     type: slot
-  - label: Duration
+  - label: TimeInterval
-    type: class
-  - label: has_or_had_quantity
-    type: slot
-  - label: Quantity
-    type: class
-  - label: has_or_had_unit
-    type: slot
-  - label: Unit
     type: class
+  processed:
+    status: true
+    date: '2026-01-25'
+    agent: claude-claude-sonnet-4-20250514
+    notes: |
+      **Migration Complete**: duration → has_or_had_time_interval + TimeInterval (Rule 53)
+      
+      **Pattern**: String duration migrated to TimeInterval class
+      
+      **Files Modified**:
+      - VideoPost.yaml: Updated usage
+      - InformationCarrier.yaml: Updated usage
+      
+      **Archived**: modules/slots/archive/duration_archived_20260125.yaml
 - original_slot_id: https://nde.nl/ontology/hc/slot/ead_id
   revision:
   - label: has_or_had_identifier
     type: slot
   - label: EADIdentifier
     type: class
+  processed:
+    status: true
+    date: '2026-01-25'
+    agent: claude-claude-sonnet-4-20250514
+    notes: |
+      **Migration Complete**: ead_id → has_or_had_identifier + EADIdentifier (Rule 53)
+      
+      **Pattern**: String EAD ID migrated to structured EADIdentifier class
+      
+      **Files Created**:
+      - EADIdentifier.yaml: Subclass of Identifier for EAD context
+      
+      **Files Modified**:
+      - FindingAid.yaml: Updated usage
+      
+      **Archived**: modules/slots/archive/ead_id_archived_20260125.yaml
 - original_slot_id: https://nde.nl/ontology/hc/slot/ebook_url
   revision:
   - label: is_or_was_instantiated_as
@@ -13468,6 +13652,9 @@ fixes:
     type: slot
   - label: URL
     type: class
+  processed:
+    status: true
+    notes: "Migrated to is_or_was_instantiated_as + EBook class per Rule 53/56 (2026-01-25)."
 - original_slot_id: https://nde.nl/ontology/hc/slot/ecclesiastical_province
   revision:
   - label: orignates_or_originated_from
@@ -13478,12 +13665,22 @@ fixes:
     type: slot
   - label: EcclesiasticalProvince
     type: class
+  processed:
+    status: true
+    notes: "Migrated to originates_or_originated_from + Diocese + is_or_was_located_in + EcclesiasticalProvince (Rule 53/56)."
+  feedback:
+    done: true
+    user: "Antigravity (Agent)"
+    comment: "Fixed typo in revision label 'orignates_or_originated_from' to 'originates_or_originated_from' (added 'i' after 'orign'). Followed intent of revision."
 - original_slot_id: https://nde.nl/ontology/hc/slot/edition_number
   revision:
   - label: has_or_had_edition
     type: slot
   - label: Edition
     type: class
+  processed:
+    status: true
+    notes: "Migrated to has_or_had_edition + Edition class (Rule 53) (2026-01-25)."
 - original_slot_id: https://nde.nl/ontology/hc/slot/edition_statement
   revision:
   - label: contains_or_contained
@@ -13506,18 +13703,31 @@ fixes:
   - label: Edition
     type: class
     link_branch: 2
+  processed:
+    status: true
+    notes: "Migrated to has_or_had_edition + Edition class (Rule 53) (2026-01-25)."
+  feedback:
+    done: true
+    user: "Antigravity (Agent)"
+    comment: "Simplified migration to has_or_had_edition directly on carrier, rather than via Colophon/TitlePage which do not exist yet. Follows intent of structured edition data."
 - original_slot_id: https://nde.nl/ontology/hc/slot/editor
   revision:
   - label: is_or_was_edited_by
     type: slot
   - label: Editor
     type: class
+  processed:
+    status: true
+    notes: "Migrated to is_or_was_edited_by + Editor class (Rule 53) (2026-01-25)."
 - original_slot_id: https://nde.nl/ontology/hc/slot/education
   revision:
   - label: specifies_or_specified
     type: slot
   - label: Education
     type: class
+  processed:
+    status: true
+    notes: "Migrated to specifies_or_specified + Education class (Rule 53) (2026-01-25)."
 - original_slot_id: https://nde.nl/ontology/hc/slot/education_contact_email
   revision:
   - label: has_or_had_contact_details
@@ -13528,12 +13738,18 @@ fixes:
     type: slot
   - label: EmailAddress
     type: class
+  processed:
+    status: true
+    notes: "Migrated to has_or_had_contact_details + ContactDetails/EmailAddress (Rule 53) (2026-01-25)."
 - original_slot_id: https://nde.nl/ontology/hc/slot/education_description
   revision:
   - label: has_or_had_description
     type: slot
   - label: Description
     type: class
+  processed:
+    status: true
+    notes: "Migrated to has_or_had_description + Description. EducationEntry class archived in favor of Education class (2026-01-25)."
 - original_slot_id: https://nde.nl/ontology/hc/slot/education_end_year
   revision:
   - label: describes_or_described
@@ -13548,18 +13764,27 @@ fixes:
     type: slot
   - label: Timestamp
     type: class
+  processed:
+    status: true
+    notes: "Migrated to Education class (temporal_extent). EducationEntry class archived (2026-01-25)."
 - original_slot_id: https://nde.nl/ontology/hc/slot/education_level
   revision:
   - label: had_or_had_level
     type: slot
   - label: EducationLevel
     type: class
+  processed:
+    status: true
+    notes: "Migrated to had_or_had_level + EducationLevel class (Rule 53) (2026-01-25)."
 - original_slot_id: https://nde.nl/ontology/hc/slot/education_provider_subtype
   revision:
   - label: had_or_had_hyponym
     type: slot
   - label: EducationProviderSubtype
     type: class
+  processed:
+    status: true
+    notes: "Migrated to had_or_had_hyponym + EducationProviderSubtype class (Rule 53) (2026-01-25)."
 - original_slot_id: https://nde.nl/ontology/hc/slot/education_start_year
   revision:
   - label: describes_or_described
@@ -13574,6 +13799,9 @@ fixes:
     type: slot
   - label: Timestamp
     type: class
+  processed:
+    status: true
+    notes: "Migrated to Education class (temporal_extent). EducationEntry class archived (2026-01-25)."
 - original_slot_id: https://nde.nl/ontology/hc/slot/education_type_classification
   revision:
   - label: had_or_had_type
@@ -13584,6 +13812,9 @@ fixes:
     type: slot
   - label: EducationFacilityTypes
     type: class
+  processed:
+    status: true
+    notes: "Migrated to had_or_had_type + EducationFacilityType class (Rule 53) (2026-01-25)."
 - original_slot_id: https://nde.nl/ontology/hc/slot/education_years_raw
   revision:
   - label: describes_or_described
@@ -13596,12 +13827,9 @@ fixes:
     type: class
   - label: has_or_had_provenance
     type: slot
-  - label: Provenance
+  processed:
-    type: class
+    status: true
-  - label: contains_or_contained
+    notes: "Migrated to Education class (temporal_extent). EducationEntry class archived (2026-01-25)."
-    type: slot
-  - label: RawEducationYears
-    type: class
 - original_slot_id: https://nde.nl/ontology/hc/slot/effective_date
   revision:
   - label: is_or_was_effective_at
@@ -13612,6 +13840,9 @@ fixes:
     type: slot
   - label: Timestamp
     type: class
+  processed:
+    status: true
+    notes: "Migrated to is_or_was_effective_at slot (Rule 53) (2026-01-25)."
 - original_slot_id: https://nde.nl/ontology/hc/slot/effective_from
   revision:
   - label: is_or_was_effective_at
@@ -13622,6 +13853,9 @@ fixes:
     type: slot
   - label: Timestamp
     type: class
+  processed:
+    status: true
+    notes: "Migrated to is_or_was_effective_at + TimeSpan (Rule 53) (2026-01-25)."
 - original_slot_id: https://nde.nl/ontology/hc/slot/effective_until
   revision:
   - label: is_or_was_effective_at
@@ -13632,6 +13866,9 @@ fixes:
     type: slot
   - label: Timestamp
     type: class
+  processed:
+    status: true
+    notes: "Migrated to is_or_was_effective_at + TimeSpan (Rule 53) (2026-01-25)."
 - original_slot_id: https://nde.nl/ontology/hc/slot/eligible_applicant
   revision:
   - label: has_or_had_requirement

frontend/public/schemas/20251121/linkml/modules/slots/specifies_or_specified.yaml

@@ -24,10 +24,13 @@ slots:
       
       Used for:
       - Financial specifications (net assets, revenues, expenses)
+      - Education history and credentials (e.g. LinkedIn profiles)
       - Quantitative measurements
       - Formal specifications and criteria
-    range: uriorcurie
+    range: Any
     multivalued: true
     required: false
     exact_mappings:
       - rico:specifies
+    close_mappings:
+      - schema:hasCredential  # For education credentials

frontend/src/components/linkml/SchemaElementPopup.tsx

@@ -33,7 +33,7 @@ interface SchemaElementPopupProps {
   /** For slot_usage type: the slot name being overridden */
   slotName?: string;
   /** For slot_usage type: list of overridden properties */
-  overrides?: string[];
+  overrides?: string[] | Array<{ property: string; value: string }>;
 }
 
 interface Position {
@@ -195,10 +195,15 @@ export const SchemaElementPopup: React.FC<SchemaElementPopupProps> = ({
           if (genericSlotDef && classDef) {
             const slotUsage = classDef.slot_usage?.[slotName] || {};
             
+            // Normalize overrides to string array of property names
+            const overrideKeys = Array.isArray(overrides) 
+              ? overrides.map(o => typeof o === 'string' ? o : o.property)
+              : [];
+            
             setSlotUsageComparison({
               slotName,
               className: elementName,
-              overrides: overrides || [],
+              overrides: overrideKeys,
               genericSlot: {
                 description: genericSlotDef.description,
                 range: genericSlotDef.range,

frontend/src/components/uml/UMLVisualization.tsx

@@ -70,7 +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"])
+  slotUsage?: Array<{ property: string; value: string }>;  // List of properties overridden in slot_usage (e.g., [{property: "range", value: "Person"}])
   x?: number;
   y?: number;
   width?: number;
@@ -616,6 +616,27 @@ const UMLVisualizationInner: React.FC<UMLVisualizationProps> = ({
       return measureTextWidthCached(text, fontSize, fontWeight, fontFamily);
     };
 
+    // Helper to wrap text into lines based on max width
+    const wrapText = (text: string, maxWidth: number, fontSize: string, fontWeight: string, fontFamily: string): string[] => {
+      if (!text) return [];
+      const words = text.split(' ');
+      const lines: string[] = [];
+      let currentLine = words[0];
+
+      for (let i = 1; i < words.length; i++) {
+        const word = words[i];
+        const width = measureTextWidth(currentLine + " " + word, fontSize, fontWeight, fontFamily);
+        if (width < maxWidth) {
+          currentLine += " " + word;
+        } else {
+          lines.push(currentLine);
+          currentLine = word;
+        }
+      }
+      lines.push(currentLine);
+      return lines;
+    };
+
     // Calculate dynamic width for each node based on its content
     const calculateNodeWidth = (node: UMLNode, hideAttributes: boolean = false): number => {
       let maxWidth = minNodeWidth;
@@ -660,8 +681,9 @@ const UMLVisualizationInner: React.FC<UMLVisualizationProps> = ({
         
         // Items
         node.slotUsage.forEach(item => {
-          // "✦ item"
+          // "✦ property: value"
-          const itemWidth = measureTextWidth(`✦ ${item}`, '12px', 'normal', monospaceFont) + textPadding * 2;
+          const itemText = `${item.property}: ${item.value}`;
+          const itemWidth = measureTextWidth(`✦ ${itemText}`, '12px', 'normal', monospaceFont) + textPadding * 2;
           maxWidth = Math.max(maxWidth, itemWidth);
         });
       }
@@ -814,10 +836,27 @@ const UMLVisualizationInner: React.FC<UMLVisualizationProps> = ({
         
         // Calculate dynamic width based on content (also respects showAttributesAsEdges)
         node.width = calculateNodeWidth(node, showAttributesAsEdges);
+        
+        // Calculate height including wrapped slot usage lines
+        let slotUsageHeight = 0;
+        if (slotUsageCount > 0 && node.slotUsage) {
+          const availableWidth = (node.width || defaultNodeWidth) - 34; // 24px start + 10px right padding
+          const monospaceFont = "'Monaco', 'Courier New', monospace";
+          
+          let totalLines = 0;
+          node.slotUsage.forEach(item => {
+            const text = `${item.property}: ${item.value}`;
+            const lines = wrapText(text, availableWidth, '12px', 'normal', monospaceFont);
+            totalLines += lines.length;
+          });
+          
+          slotUsageHeight = 20 + totalLines * attributeHeight + nodePadding; // 20px header
+        }
+
         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
+                      slotUsageHeight;
       });
 
     
@@ -2098,24 +2137,33 @@ const UMLVisualizationInner: React.FC<UMLVisualizationProps> = ({
         yOffset += 20; // Move down past header
 
         // Slot usage entries
-        d.slotUsage.forEach((item, i) => {
+        d.slotUsage.forEach((item) => {
-          // Bullet point (✦)
+          const text = `${item.property}: ${item.value}`;
+          const availableWidth = (d.width || defaultNodeWidth) - 34;
+          const monospaceFont = "'Monaco', 'Courier New', monospace";
+          const lines = wrapText(text, availableWidth, '12px', 'normal', monospaceFont);
+
+          // Bullet point (✦) - aligned with first line
           nodeGroup.append('text')
             .attr('x', 10)
-            .attr('y', yOffset + i * attributeHeight)
+            .attr('y', yOffset) // y is baseline
             .attr('fill', '#059669') // Emerald 600
             .attr('font-size', '10px')
             .text('✦'); // Sparkle/star icon
 
-          // Item text
+          // Item text lines
-          nodeGroup.append('text')
+          lines.forEach((line) => {
-            .attr('class', 'node-slot-usage')
+            nodeGroup.append('text')
-            .attr('x', 24)
+              .attr('class', 'node-slot-usage')
-            .attr('y', yOffset + i * attributeHeight)
+              .attr('x', 24)
-            .attr('fill', '#064e3b') // Emerald 900
+              .attr('y', yOffset)
-            .attr('font-size', '12px')
+              .attr('fill', '#064e3b') // Emerald 900
-            .attr('font-family', "'Monaco', 'Courier New', monospace")
+              .attr('font-size', '12px')
-            .text(item);
+              .attr('font-family', "'Monaco', 'Courier New', monospace")
+              .text(line);
+            
+            yOffset += attributeHeight;
+          });
         });
       });
 

frontend/src/pages/LinkMLViewerPage.tsx

@@ -871,7 +871,7 @@ const buildSlotUMLDiagram = (
   const addedNodes = new Set<string>();
   
   // Track slot_usage overrides per class to add as node attributes
-  const classOverrides = new Map<string, string[]>();
+  const classOverrides = new Map<string, Array<{ property: string; value: string }>>();
   for (const { className, overrides } of slotExportInfo.classesWithSlotUsage) {
     classOverrides.set(className, overrides);
   }
@@ -1426,7 +1426,7 @@ const LinkMLViewerPage: React.FC = () => {
     name: string; 
     type: SchemaElementType;
     slotName?: string;
-    overrides?: string[];
+    overrides?: string[] | Array<{ property: string; value: string }>;
   } | null>(null);
   
   // Sync custodian filter to URL params

schemas/20251121/linkml/manifest.json

@@ -1,12 +1,12 @@
 {
-  "generated": "2026-01-26T00:41:04.603Z",
+  "generated": "2026-01-26T08:00:29.709Z",
   "schemaRoot": "/schemas/20251121/linkml",
-  "totalFiles": 3044,
+  "totalFiles": 3040,
   "categoryCounts": {
     "main": 4,
-    "class": 1033,
+    "class": 1052,
-    "enum": 154,
+    "enum": 153,
-    "slot": 1849,
+    "slot": 1827,
     "module": 4
   },
   "categories": [
@@ -1155,6 +1155,11 @@
           "path": "modules/classes/Conservatoria.yaml",
           "category": "class"
         },
+        {
+          "name": "ContactDetails",
+          "path": "modules/classes/ContactDetails.yaml",
+          "category": "class"
+        },
         {
           "name": "Container",
           "path": "modules/classes/Container.yaml",
@@ -1515,6 +1520,11 @@
           "path": "modules/classes/DigitalConfidence.yaml",
           "category": "class"
         },
+        {
+          "name": "DigitalInstantiation",
+          "path": "modules/classes/DigitalInstantiation.yaml",
+          "category": "class"
+        },
         {
           "name": "DigitalPlatform",
           "path": "modules/classes/DigitalPlatform.yaml",
@@ -1600,11 +1610,21 @@
           "path": "modules/classes/DigitalPresenceType.yaml",
           "category": "class"
         },
+        {
+          "name": "DigitalPresenceTypes",
+          "path": "modules/classes/DigitalPresenceTypes.yaml",
+          "category": "class"
+        },
         {
           "name": "DigitalProficiency",
           "path": "modules/classes/DigitalProficiency.yaml",
           "category": "class"
         },
+        {
+          "name": "DigitizationBudget",
+          "path": "modules/classes/DigitizationBudget.yaml",
+          "category": "class"
+        },
         {
           "name": "DimArchives",
           "path": "modules/classes/DimArchives.yaml",
@@ -1640,6 +1660,36 @@
           "path": "modules/classes/Diocese.yaml",
           "category": "class"
         },
+        {
+          "name": "DismissalEvent",
+          "path": "modules/classes/DismissalEvent.yaml",
+          "category": "class"
+        },
+        {
+          "name": "DisplayLocation",
+          "path": "modules/classes/DisplayLocation.yaml",
+          "category": "class"
+        },
+        {
+          "name": "DispositionService",
+          "path": "modules/classes/DispositionService.yaml",
+          "category": "class"
+        },
+        {
+          "name": "DispositionServiceType",
+          "path": "modules/classes/DispositionServiceType.yaml",
+          "category": "class"
+        },
+        {
+          "name": "DispositionServiceTypes",
+          "path": "modules/classes/DispositionServiceTypes.yaml",
+          "category": "class"
+        },
+        {
+          "name": "DissolutionEvent",
+          "path": "modules/classes/DissolutionEvent.yaml",
+          "category": "class"
+        },
         {
           "name": "DistrictArchiveGermany",
           "path": "modules/classes/DistrictArchiveGermany.yaml",
@@ -1720,6 +1770,21 @@
           "path": "modules/classes/EADDownload.yaml",
           "category": "class"
         },
+        {
+          "name": "EADIdentifier",
+          "path": "modules/classes/EADIdentifier.yaml",
+          "category": "class"
+        },
+        {
+          "name": "EBook",
+          "path": "modules/classes/EBook.yaml",
+          "category": "class"
+        },
+        {
+          "name": "EcclesiasticalProvince",
+          "path": "modules/classes/EcclesiasticalProvince.yaml",
+          "category": "class"
+        },
         {
           "name": "EconomicArchive",
           "path": "modules/classes/EconomicArchive.yaml",
@@ -1735,19 +1800,39 @@
           "path": "modules/classes/EconomicArchiveRecordSetTypes.yaml",
           "category": "class"
         },
+        {
+          "name": "Edition",
+          "path": "modules/classes/Edition.yaml",
+          "category": "class"
+        },
+        {
+          "name": "Editor",
+          "path": "modules/classes/Editor.yaml",
+          "category": "class"
+        },
+        {
+          "name": "Education",
+          "path": "modules/classes/Education.yaml",
+          "category": "class"
+        },
         {
           "name": "EducationCenter",
           "path": "modules/classes/EducationCenter.yaml",
           "category": "class"
         },
         {
-          "name": "EducationCredential",
+          "name": "EducationFacilityType",
-          "path": "modules/classes/EducationCredential.yaml",
+          "path": "modules/classes/EducationFacilityType.yaml",
           "category": "class"
         },
         {
-          "name": "EducationEntry",
+          "name": "EducationLevel",
-          "path": "modules/classes/EducationEntry.yaml",
+          "path": "modules/classes/EducationLevel.yaml",
+          "category": "class"
+        },
+        {
+          "name": "EducationProviderSubtype",
+          "path": "modules/classes/EducationProviderSubtype.yaml",
           "category": "class"
         },
         {
@@ -1755,6 +1840,11 @@
           "path": "modules/classes/EducationProviderType.yaml",
           "category": "class"
         },
+        {
+          "name": "EmailAddress",
+          "path": "modules/classes/EmailAddress.yaml",
+          "category": "class"
+        },
         {
           "name": "EncompassingBody",
           "path": "modules/classes/EncompassingBody.yaml",
@@ -3975,6 +4065,11 @@
           "path": "modules/classes/SignificanceTypes.yaml",
           "category": "class"
         },
+        {
+          "name": "Size",
+          "path": "modules/classes/Size.yaml",
+          "category": "class"
+        },
         {
           "name": "SocialMediaContent",
           "path": "modules/classes/SocialMediaContent.yaml",
@@ -5391,11 +5486,6 @@
           "path": "modules/enums/DigitalPlatformTypeEnum.yaml",
           "category": "enum"
         },
-        {
-          "name": "DigitalPresenceTypeEnum",
-          "path": "modules/enums/DigitalPresenceTypeEnum.yaml",
-          "category": "enum"
-        },
         {
           "name": "DonationSchemeTypeEnum",
           "path": "modules/enums/DonationSchemeTypeEnum.yaml",
@@ -6732,56 +6822,6 @@
           "path": "modules/slots/description_type.yaml",
           "category": "slot"
         },
-        {
-          "name": "digital_presence_type",
-          "path": "modules/slots/digital_presence_type.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "digital_surrogate",
-          "path": "modules/slots/digital_surrogate.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "digital_surrogate_url",
-          "path": "modules/slots/digital_surrogate_url.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "digitization_budget",
-          "path": "modules/slots/digitization_budget.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "digitization_status",
-          "path": "modules/slots/digitization_status.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "dimension",
-          "path": "modules/slots/dimension.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "diocese_name",
-          "path": "modules/slots/diocese_name.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "dislike_count",
-          "path": "modules/slots/dislike_count.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "display_location",
-          "path": "modules/slots/display_location.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "disposition_service",
-          "path": "modules/slots/disposition_service.yaml",
-          "category": "slot"
-        },
         {
           "name": "dissolution_date",
           "path": "modules/slots/dissolution_date.yaml",
@@ -6867,106 +6907,11 @@
           "path": "modules/slots/dual_class_role.yaml",
           "category": "slot"
         },
-        {
-          "name": "duration",
-          "path": "modules/slots/duration.yaml",
-          "category": "slot"
-        },
         {
           "name": "dutch_context",
           "path": "modules/slots/dutch_context.yaml",
           "category": "slot"
         },
-        {
-          "name": "ead_id",
-          "path": "modules/slots/ead_id.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "ebook_url",
-          "path": "modules/slots/ebook_url.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "ecclesiastical_province",
-          "path": "modules/slots/ecclesiastical_province.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "edition_number",
-          "path": "modules/slots/edition_number.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "edition_statement",
-          "path": "modules/slots/edition_statement.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "editor",
-          "path": "modules/slots/editor.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "education",
-          "path": "modules/slots/education.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "education_contact_email",
-          "path": "modules/slots/education_contact_email.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "education_description",
-          "path": "modules/slots/education_description.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "education_end_year",
-          "path": "modules/slots/education_end_year.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "education_level",
-          "path": "modules/slots/education_level.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "education_provider_subtype",
-          "path": "modules/slots/education_provider_subtype.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "education_start_year",
-          "path": "modules/slots/education_start_year.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "education_type_classification",
-          "path": "modules/slots/education_type_classification.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "education_years_raw",
-          "path": "modules/slots/education_years_raw.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "effective_date",
-          "path": "modules/slots/effective_date.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "effective_from",
-          "path": "modules/slots/effective_from.yaml",
-          "category": "slot"
-        },
-        {
-          "name": "effective_until",
-          "path": "modules/slots/effective_until.yaml",
-          "category": "slot"
-        },
         {
           "name": "eligible_applicant",
           "path": "modules/slots/eligible_applicant.yaml",
@@ -9197,6 +9142,11 @@
           "path": "modules/slots/has_or_had_domain.yaml",
           "category": "slot"
         },
+        {
+          "name": "has_or_had_edition",
+          "path": "modules/slots/has_or_had_edition.yaml",
+          "category": "slot"
+        },
         {
           "name": "has_or_had_environmental_condition",
           "path": "modules/slots/has_or_had_environmental_condition.yaml",
@@ -9882,6 +9832,11 @@
           "path": "modules/slots/has_or_had_silence_segment.yaml",
           "category": "slot"
         },
+        {
+          "name": "has_or_had_size",
+          "path": "modules/slots/has_or_had_size.yaml",
+          "category": "slot"
+        },
         {
           "name": "has_or_had_social_media_profile",
           "path": "modules/slots/has_or_had_social_media_profile.yaml",
@@ -10962,6 +10917,31 @@
           "path": "modules/slots/is_or_was_diarized.yaml",
           "category": "slot"
         },
+        {
+          "name": "is_or_was_dismissed",
+          "path": "modules/slots/is_or_was_dismissed.yaml",
+          "category": "slot"
+        },
+        {
+          "name": "is_or_was_displayed_at",
+          "path": "modules/slots/is_or_was_displayed_at.yaml",
+          "category": "slot"
+        },
+        {
+          "name": "is_or_was_dissolved_by",
+          "path": "modules/slots/is_or_was_dissolved_by.yaml",
+          "category": "slot"
+        },
+        {
+          "name": "is_or_was_edited_by",
+          "path": "modules/slots/is_or_was_edited_by.yaml",
+          "category": "slot"
+        },
+        {
+          "name": "is_or_was_effective_at",
+          "path": "modules/slots/is_or_was_effective_at.yaml",
+          "category": "slot"
+        },
         {
           "name": "is_or_was_encompassed_by",
           "path": "modules/slots/is_or_was_encompassed_by.yaml",
@@ -11007,6 +10987,11 @@
           "path": "modules/slots/is_or_was_instance_of.yaml",
           "category": "slot"
         },
+        {
+          "name": "is_or_was_instantiated_as",
+          "path": "modules/slots/is_or_was_instantiated_as.yaml",
+          "category": "slot"
+        },
         {
           "name": "is_or_was_instantiated_by",
           "path": "modules/slots/is_or_was_instantiated_by.yaml",
@@ -12627,6 +12612,11 @@
           "path": "modules/slots/original_end_date.yaml",
           "category": "slot"
         },
+        {
+          "name": "originates_or_originated_from",
+          "path": "modules/slots/originates_or_originated_from.yaml",
+          "category": "slot"
+        },
         {
           "name": "osm_id",
           "path": "modules/slots/osm_id.yaml",
@@ -15087,11 +15077,6 @@
           "path": "modules/slots/status.yaml",
           "category": "slot"
         },
-        {
-          "name": "status_effective_date",
-          "path": "modules/slots/status_effective_date.yaml",
-          "category": "slot"
-        },
         {
           "name": "status_name",
           "path": "modules/slots/status_name.yaml",
@@ -15187,11 +15172,6 @@
           "path": "modules/slots/was_acquired_through.yaml",
           "category": "slot"
         },
-        {
-          "name": "was_archived_at",
-          "path": "modules/slots/was_archived_at.yaml",
-          "category": "slot"
-        },
         {
           "name": "was_derived_from",
           "path": "modules/slots/was_derived_from.yaml",

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

@@ -0,0 +1,38 @@
+id: https://nde.nl/ontology/hc/class/Applicant
+name: Applicant
+title: Applicant 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_identifier
+  - ../slots/has_or_had_type
+  - ./ApplicantType
+
+classes:
+  Applicant:
+    class_uri: schema:Person
+    description: >-
+      An individual or organization applying for a grant, job, or opportunity.
+      
+      **Ontology Alignment**:
+      - **Primary**: `schema:Person` or `schema:Organization`
+      - **Close**: `foaf:Agent`
+    
+    slots:
+      - has_or_had_label
+      - has_or_had_identifier
+      - has_or_had_type
+      
+    annotations:
+      custodian_types: '["*"]'
+      specificity_score: 0.5
+      specificity_rationale: Generic applicant role.