refactor(schema): migrate 5 deprecated slots to temporal naming convention

Migrate slots to follow RiC-O-style temporal naming (Rule 39):
- accepts_external_work → accepts_or_accepted_external_work
- accepts_visiting_scholars → accepts_or_accepted_visiting_scholar
- accepts_payment_methods → accepts_or_accepted_payment_method
- access → has_or_had_access_condition
- access_policy_ref → has_or_had_access_policy_reference

Updated classes to use new slot names:
- ConservationLab.yaml
- ResearchCenter.yaml
- GiftShop.yaml
- ArchiveReference.yaml
- FindingAid.yaml
- Collection.yaml

Archived deprecated slots to schemas/20251121/linkml/archive/slots/
with _archived_20260110 suffix per Rule 9 (enum-to-class principle).

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

@@ -14,7 +14,7 @@ imports:
   - ../metadata
   - ./SpecificityAnnotation
   - ./TemplateSpecificityScores
-  - ../slots/access
+  - ../slots/has_or_had_access_condition
   - ../slots/full_name
   - ../slots/isil
   - ../slots/location
@@ -34,7 +34,7 @@ classes:
       Used for key_archives (main archives for a topic) and related_archives
       (external archives with related holdings).
     slots:
-      - access
+      - has_or_had_access_condition
       - full_name
       - isil
       - location

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

@@ -24,7 +24,7 @@ imports:
 - ./FindingAid
 - ./ExhibitedObject
 - ./CurationActivity
-- ../slots/access_policy_ref
+- ../slots/has_or_had_access_policy_reference
 - ../slots/has_acquisition_date
 - ../slots/has_acquisition_method
 - ../slots/has_acquisition_source
@@ -166,7 +166,7 @@ classes:
     - rico:Record
     - bf:Item
     slots:
-    - access_policy_ref
+    - has_or_had_access_policy_reference
     - has_acquisition_date
     - has_acquisition_method
     - has_acquisition_source
@@ -408,7 +408,7 @@ classes:
           description: Source of VOC archives transfer
         - value: Estate of Anna Drucker-Fraser
           description: Source of bequest
-      has_access_policy_reference:
+      has_or_had_access_policy_reference:
         slot_uri: premis:hasRightsDeclaration
         description: |
           Access policy governing this collection.
@@ -679,7 +679,7 @@ classes:
         acquisition_method: TRANSFER
         acquisition_date: '1856-01-01'
         acquisition_source: Ministry of Colonies
-        access_policy_ref: https://nde.nl/ontology/hc/access-policy/open-access
+        has_or_had_access_policy_reference: https://nde.nl/ontology/hc/access-policy/open-access
         arrangement: Organized by provenance, then chronologically
         has_or_had_finding_aid:
         - finding_aid_id: https://nde.nl/finding-aid/nationaal-archief-voc-inventory
@@ -699,5 +699,5 @@ classes:
 # NOTE: All slots are defined in centralized modules/slots/ files
 # Slots used by this class: collection_id, collection_type_ref, record_set_type,
 # extent_items, subject_areas, provenance_statement, custodial_history, acquisition_source,
-# access_policy_ref, arrangement, finding_aids, digital_surrogate_url, parent_collection,
+# has_or_had_access_policy_reference, arrangement, finding_aids, digital_surrogate_url, parent_collection,
 # has_or_had_sub_collection, items, curation_activities, part_of_custodian_collection

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

@@ -6,7 +6,7 @@ imports:
 - ./ReconstructedEntity
 - ./CustodianObservation
 - ./ReconstructionActivity
-- ../slots/accepts_external_work
+- ../slots/accepts_or_accepted_external_work
 - ../slots/has_or_had_accreditation_body
 - ../slots/conservation_specialization
 - ../slots/equipment_type
@@ -126,7 +126,7 @@ classes:
     - crm:E14_Condition_Assessment
     - schema:ResearchOrganization
     slots:
-    - accepts_external_work
+    - accepts_or_accepted_external_work
     - has_or_had_accreditation_body
     - conservation_specialization
     - equipment_type
@@ -416,7 +416,7 @@ classes:
         is_accredited: true
         accreditation_body: VeRes
         staff_count: 12
-        accepts_external_work: false
+        accepts_or_accepted_external_work: false
       description: Major museum conservation studio
     - value:
         lab_id: https://nde.nl/ontology/hc/aux/na-restauratie
@@ -437,7 +437,7 @@ classes:
         has_fume_hoods: true
         has_deacidification_facility: true
         staff_count: 6
-        accepts_external_work: true
+        accepts_or_accepted_external_work: true
       description: Archive paper conservation workshop
 slots:
   lab_id:

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

@@ -50,7 +50,7 @@ imports:
 - ../slots/publisher
 - ../slots/publication_date
 - ../slots/isbn
-- ../slots/access
+- ../slots/has_or_had_access_condition
 - ../slots/is_or_was_access_restricted
 - ../slots/all_links
 - ../slots/card_description
@@ -676,7 +676,7 @@ classes:
       Used for key_archives (main archives for a topic) and related_archives
       (external archives with related holdings).
     slots:
-    - access
+    - has_or_had_access_condition
     - full_name
     - isil
     - location

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

@@ -15,7 +15,7 @@ imports:
 - ../slots/managed_by
 - ../slots/price_currency
 - ./ReconstructedEntity
-- ../slots/accepts_payment_methods
+- ../slots/accepts_or_accepted_payment_method
 - ../slots/has_or_had_annual_revenue
 - ../slots/giftshop_price_range
 - ../slots/online_shop
@@ -65,7 +65,7 @@ classes:
       \ materials, replicas for learning\n\n**PHYSICAL vs. DIGITAL PRESENCE**:\n\n\
       Gift shops can exist in multiple forms:\n\n1. **Physical shop** (on-site): Located\
       \ within museum/archive building\n   - Links to AuxiliaryPlace (physical location)\n\
-      \   - Has opening_hours, accepts_payment_methods\n   \n2. **Physical shop**\
+      \   - Has opening_hours, accepts_or_accepted_payment_method\n   \n2. **Physical shop**\
       \ (separate): Stand-alone retail location\n   - Links to AuxiliaryPlace with\
       \ type RETAIL_SPACE\n   - May have separate street address, hours\n   \n3. **Online\
       \ shop** (e-commerce): Web-based retail platform\n   - Links to AuxiliaryDigitalPlatform\
@@ -121,7 +121,7 @@ classes:
     - gr:Offering
     - schema:Product
     slots:
-    - accepts_payment_methods
+    - accepts_or_accepted_payment_method
     - has_or_had_annual_revenue
     - giftshop_price_range
     - managed_by

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

@@ -7,7 +7,7 @@ imports:
 - ./CustodianObservation
 - ./ReconstructionActivity
 - ../enums/ResearchCenterTypeEnum
-- ../slots/accepts_visiting_scholars
+- ../slots/accepts_or_accepted_visiting_scholar
 - ../slots/has_or_had_affiliated_university
 - ../slots/has_or_had_custodian_type
 - ../slots/fellows_count
@@ -130,7 +130,7 @@ classes:
     - hc:ConservationLab
     - hc:EducationCenter
     slots:
-    - accepts_visiting_scholars
+    - accepts_or_accepted_visiting_scholar
     - has_or_had_affiliated_university
     - has_or_had_custodian_type
     - fellows_count
@@ -369,7 +369,7 @@ classes:
         has_publication_series: true
         publication_series_name: Rijksmuseum Studies in Art
         has_research_library: true
-        accepts_visiting_scholars: true
+        accepts_or_accepted_visiting_scholar: true
         major_research_project:
         - Rembrandt Database
         - Operation Night Watch
@@ -391,7 +391,7 @@ classes:
         - TU Delft
         has_fellows_program: true
         fellows_count: 4
-        accepts_visiting_scholars: true
+        accepts_or_accepted_visiting_scholar: true
         staff_count: 8
       description: Digital humanities research lab
 slots:

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

@@ -1,23 +1,26 @@
-id: https://nde.nl/ontology/hc/slot/has_access_policy_reference
-name: has_access_policy_reference_slot
-title: Has Access Policy Reference Slot
+id: https://nde.nl/ontology/hc/slot/has_or_had_access_policy_reference
+name: has_or_had_access_policy_reference_slot
+title: Has Or Had Access Policy Reference Slot
 prefixes:
   dcterms: http://purl.org/dc/terms/
   hc: https://nde.nl/ontology/hc/
   linkml: https://w3id.org/linkml/
   schema: http://schema.org/
+  premis: http://www.loc.gov/premis/rdf/v3/
 imports:
 - linkml:types
 default_prefix: hc
 slots:
-  has_access_policy_reference:
+  has_or_had_access_policy_reference:
     description: >-
       Reference (URL or citation) to an access policy document.
+      Uses temporal naming to indicate that access policies may change over time.
     range: uri
-    slot_uri: dcterms:references
+    slot_uri: premis:hasRightsDeclaration
     exact_mappings:
-      - dcterms:references
+      - premis:hasRightsDeclaration
     close_mappings:
+      - dcterms:references
       - schema:citation
       - dcterms:source
     annotations: