refactor: Convert AnnotationMotivationEnum to Type/Types class hierarchy

- Create AnnotationMotivationType abstract base class (oa:Motivation)
- Create 10 concrete motivation subclasses in AnnotationMotivationTypes.yaml:
  - 6 W3C Web Annotation standard: classifying, describing, identifying,
    tagging, linking, commenting
  - 4 heritage-specific: accessibility, discovery, preservation, research
- Update has_annotation_motivation slot to use AnnotationMotivationType range
- Update VideoAnnotation.yaml imports and remove inline enum
- Archive deprecated AnnotationMotivationEnum.yaml
- Add motivation_type_id, motivation_type_name, motivation_type_description slots

Follows Rule 0b (Type/Types naming convention) and Rule 9 (enum-to-class promotion)

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

@@ -0,0 +1,127 @@
+id: https://nde.nl/ontology/hc/class/AnnotationMotivationType
+name: annotation_motivation_type_class
+title: Annotation Motivation Type
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  oa: http://www.w3.org/ns/oa#
+  skos: http://www.w3.org/2004/02/skos/core#
+  dcterms: http://purl.org/dc/terms/
+  crm: http://www.cidoc-crm.org/cidoc-crm/
+  prov: http://www.w3.org/ns/prov#
+  as: https://www.w3.org/ns/activitystreams#
+default_prefix: hc
+imports:
+  - linkml:types
+  - ../metadata
+  - ../slots/motivation_type_id
+  - ../slots/motivation_type_name
+  - ../slots/motivation_type_description
+  - ../slots/specificity_annotation
+  - ../slots/template_specificity
+  - ./SpecificityAnnotation
+  - ./TemplateSpecificityScores
+
+classes:
+  AnnotationMotivationType:
+    class_uri: oa:Motivation
+    abstract: true
+    description: |
+      Abstract base class for annotation motivation types in the heritage domain.
+
+      **DEFINITION**:
+
+      AnnotationMotivationType represents CATEGORIES of motivations for creating
+      annotations. Each subclass defines a specific purpose or intent behind
+      annotation creation.
+
+      **W3C WEB ANNOTATION ALIGNMENT**:
+
+      The W3C Web Annotation Data Model defines `oa:Motivation` as:
+      > The class for Motivation resources that describe the user's intent
+      > or motivation for the creation of the Annotation.
+
+      The `oa:Motivation` class is a subclass of `skos:Concept`:
+      ```turtle
+      oa:Motivation a rdfs:Class ;
+          rdfs:subClassOf skos:Concept .
+      ```
+
+      **STANDARD MOTIVATIONS** (from W3C Web Annotation):
+
+      | Motivation | URI | Description |
+      |------------|-----|-------------|
+      | classifying | oa:classifying | Categorizing or classifying content |
+      | commenting | oa:commenting | Adding commentary |
+      | describing | oa:describing | Adding descriptive information |
+      | identifying | oa:identifying | Identifying depicted entities |
+      | linking | oa:linking | Linking to external resources |
+      | tagging | oa:tagging | Adding tags or keywords |
+
+      **HERITAGE-SPECIFIC EXTENSIONS**:
+
+      Beyond W3C standard motivations, heritage institutions require:
+
+      | Motivation | Purpose | Use Case |
+      |------------|---------|----------|
+      | AccessibilityMotivation | Accessibility support | Alt-text, captions, audio descriptions |
+      | DiscoveryMotivation | Search and discovery | SEO, facets, keywords |
+      | PreservationMotivation | Digital preservation | Checksums, format migration notes |
+      | ResearchMotivation | Research support | Citations, analysis, scholarly notes |
+
+      **CIDOC-CRM ALIGNMENT**:
+
+      Annotation motivations relate to CIDOC-CRM attribute assignments:
+      - `crm:E13_Attribute_Assignment` - The act of assigning information
+      - `crm:P17_was_motivated_by` - The motivation for an activity
+
+      **PROV-O ALIGNMENT**:
+
+      - `prov:Activity` - Annotations as activities with motivations
+      - `prov:wasMotivatedBy` (proposed) - Relates activity to motivation
+
+      **SUBCLASSES**:
+
+      See AnnotationMotivationTypes.yaml for 10 concrete motivation subclasses:
+      - ClassifyingMotivation, DescribingMotivation, IdentifyingMotivation
+      - TaggingMotivation, LinkingMotivation, CommentingMotivation
+      - AccessibilityMotivation, DiscoveryMotivation, PreservationMotivation, ResearchMotivation
+    exact_mappings:
+      - oa:Motivation
+    close_mappings:
+      - skos:Concept
+    related_mappings:
+      - crm:E55_Type
+      - prov:Influence
+      - as:Object
+    slots:
+      - motivation_type_id
+      - motivation_type_name
+      - motivation_type_description
+      - specificity_annotation
+      - template_specificity
+    slot_usage:
+      motivation_type_id:
+        identifier: true
+        required: true
+        description: Unique identifier for this motivation type
+      motivation_type_name:
+        required: true
+        description: |
+          Canonical name for this motivation type.
+          Used for display and cross-referencing.
+      specificity_annotation:
+        range: SpecificityAnnotation
+        inlined: true
+      template_specificity:
+        range: TemplateSpecificityScores
+        inlined: true
+    comments:
+      - Abstract base class - use specific subclasses (ClassifyingMotivation, etc.)
+      - Represents MOTIVATION TYPES, not individual motivation instances
+      - Aligns with W3C Web Annotation oa:Motivation class
+      - Heritage-specific extensions beyond W3C standard motivations
+    see_also:
+      - https://www.w3.org/TR/annotation-vocab/#motivation
+      - https://www.w3.org/ns/oa#Motivation
+      - http://www.cidoc-crm.org/cidoc-crm/E55_Type

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

@@ -0,0 +1,598 @@
+id: https://nde.nl/ontology/hc/class/AnnotationMotivationTypes
+name: annotation_motivation_types
+title: Annotation Motivation Types Collection
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  oa: http://www.w3.org/ns/oa#
+  skos: http://www.w3.org/2004/02/skos/core#
+  dcterms: http://purl.org/dc/terms/
+  crm: http://www.cidoc-crm.org/cidoc-crm/
+  prov: http://www.w3.org/ns/prov#
+  schema: http://schema.org/
+  wcag: https://www.w3.org/WAI/WCAG21/
+default_prefix: hc
+imports:
+  - linkml:types
+  - ../metadata
+  - ./AnnotationMotivationType
+  - ../slots/specificity_annotation
+  - ../slots/template_specificity
+  - ./SpecificityAnnotation
+  - ./TemplateSpecificityScores
+
+classes:
+  ClassifyingMotivation:
+    is_a: AnnotationMotivationType
+    class_uri: oa:classifying
+    description: |
+      Motivation for categorizing or classifying content.
+
+      **DEFINITION**:
+
+      ClassifyingMotivation describes annotations where the intent is to
+      assign the target to a specific category or classification scheme.
+
+      **W3C WEB ANNOTATION**:
+
+      From oa:classifying:
+      > The motivation for when the user intends to classify the Target
+      > as something.
+
+      **USE CASES**:
+
+      | Use Case | Example |
+      |----------|---------|
+      | Subject classification | Assigning LCSH or AAT terms |
+      | Genre classification | Labeling artwork as "Baroque" |
+      | Object type | Classifying as "painting", "sculpture" |
+      | Content rating | Age-appropriate classifications |
+
+      **HERITAGE CONTEXT**:
+
+      Classification is fundamental to heritage cataloging:
+      - Museum object classification (Getty AAT)
+      - Archival arrangement and description
+      - Library subject cataloging (LCSH, DDC)
+      - Iconographic classification (Iconclass)
+    exact_mappings:
+      - oa:classifying
+    close_mappings:
+      - skos:Concept
+      - crm:E17_Type_Assignment
+    slot_usage:
+      motivation_type_name:
+        equals_string: classifying
+      specificity_annotation:
+        range: SpecificityAnnotation
+        inlined: true
+      template_specificity:
+        range: TemplateSpecificityScores
+        inlined: true
+    slots:
+      - specificity_annotation
+      - template_specificity
+    comments:
+      - W3C Web Annotation standard motivation
+      - Primary use in heritage cataloging and classification
+
+  DescribingMotivation:
+    is_a: AnnotationMotivationType
+    class_uri: oa:describing
+    description: |
+      Motivation for adding descriptive information to content.
+
+      **DEFINITION**:
+
+      DescribingMotivation describes annotations where the intent is to
+      provide a description of the target resource.
+
+      **W3C WEB ANNOTATION**:
+
+      From oa:describing:
+      > The motivation for when the user intends to describe the Target,
+      > as opposed to a comment about them.
+
+      **USE CASES**:
+
+      | Use Case | Example |
+      |----------|---------|
+      | Physical description | Dimensions, materials, condition |
+      | Content description | What is depicted in an artwork |
+      | Scene description | Video scene narrative |
+      | Alt-text | Image description for accessibility |
+
+      **HERITAGE CONTEXT**:
+
+      Description is core to heritage documentation:
+      - Museum object cataloging (physical descriptions)
+      - Archival finding aid scope and content notes
+      - Library bibliographic description
+      - Video/audio content summarization
+    exact_mappings:
+      - oa:describing
+    close_mappings:
+      - dcterms:description
+      - crm:E62_String
+    slot_usage:
+      motivation_type_name:
+        equals_string: describing
+      specificity_annotation:
+        range: SpecificityAnnotation
+        inlined: true
+      template_specificity:
+        range: TemplateSpecificityScores
+        inlined: true
+    slots:
+      - specificity_annotation
+      - template_specificity
+    comments:
+      - W3C Web Annotation standard motivation
+      - Fundamental to heritage cataloging and accessibility
+
+  IdentifyingMotivation:
+    is_a: AnnotationMotivationType
+    class_uri: oa:identifying
+    description: |
+      Motivation for identifying depicted entities.
+
+      **DEFINITION**:
+
+      IdentifyingMotivation describes annotations where the intent is to
+      assign an identity to what is being depicted or described.
+
+      **W3C WEB ANNOTATION**:
+
+      From oa:identifying:
+      > The motivation for when the user intends to assign an identity to
+      > the Target or identify what is being depicted or described.
+
+      **USE CASES**:
+
+      | Use Case | Example |
+      |----------|---------|
+      | Person identification | Identifying portrait subjects |
+      | Place identification | Geolocating depicted locations |
+      | Object identification | Linking to collection records |
+      | Entity recognition | Named entity extraction |
+
+      **HERITAGE CONTEXT**:
+
+      Identification links heritage content to entities:
+      - Portrait subject identification
+      | - Artwork attribution (artist identification)
+      - Depicted location identification
+      - Object-to-record linking (computer vision)
+    exact_mappings:
+      - oa:identifying
+    close_mappings:
+      - crm:E15_Identifier_Assignment
+      - schema:identifier
+    slot_usage:
+      motivation_type_name:
+        equals_string: identifying
+      specificity_annotation:
+        range: SpecificityAnnotation
+        inlined: true
+      template_specificity:
+        range: TemplateSpecificityScores
+        inlined: true
+    slots:
+      - specificity_annotation
+      - template_specificity
+    comments:
+      - W3C Web Annotation standard motivation
+      - Links content to identified entities
+
+  TaggingMotivation:
+    is_a: AnnotationMotivationType
+    class_uri: oa:tagging
+    description: |
+      Motivation for adding tags or keywords.
+
+      **DEFINITION**:
+
+      TaggingMotivation describes annotations where the intent is to
+      associate a tag or keyword with the target resource.
+
+      **W3C WEB ANNOTATION**:
+
+      From oa:tagging:
+      > The motivation for when the user intends to associate a tag with
+      > the Target.
+
+      **USE CASES**:
+
+      | Use Case | Example |
+      |----------|---------|
+      | Keyword tagging | User-generated tags |
+      | Folksonomy | Community tagging |
+      | Social tagging | Hashtags on social media |
+      | Crowdsourced tags | Volunteer tagging projects |
+
+      **HERITAGE CONTEXT**:
+
+      Tagging complements formal classification:
+      - Crowdsourced transcription projects
+      - Social tagging of collections
+      - User-generated content enrichment
+      - Folksonomies alongside controlled vocabularies
+    exact_mappings:
+      - oa:tagging
+    close_mappings:
+      - skos:Concept
+      - schema:keywords
+    slot_usage:
+      motivation_type_name:
+        equals_string: tagging
+      specificity_annotation:
+        range: SpecificityAnnotation
+        inlined: true
+      template_specificity:
+        range: TemplateSpecificityScores
+        inlined: true
+    slots:
+      - specificity_annotation
+      - template_specificity
+    comments:
+      - W3C Web Annotation standard motivation
+      - User-generated content enrichment
+
+  LinkingMotivation:
+    is_a: AnnotationMotivationType
+    class_uri: oa:linking
+    description: |
+      Motivation for linking to external resources.
+
+      **DEFINITION**:
+
+      LinkingMotivation describes annotations where the intent is to
+      create a link between the target and a related resource.
+
+      **W3C WEB ANNOTATION**:
+
+      From oa:linking:
+      > The motivation for when the user intends to link to a resource
+      > related to the Target.
+
+      **USE CASES**:
+
+      | Use Case | Example |
+      |----------|---------|
+      | See also links | Related collection items |
+      | Authority links | Links to Wikidata/VIAF |
+      | Reference links | Citations and sources |
+      | IIIF links | Manifest and canvas links |
+
+      **HERITAGE CONTEXT**:
+
+      Linking enables Linked Open Data:
+      - Authority file linking (VIAF, ISNI, Wikidata)
+      - Collection cross-references
+      - Digital object linking (IIIF)
+      - Bibliographic references
+    exact_mappings:
+      - oa:linking
+    close_mappings:
+      - dcterms:relation
+      - skos:related
+      - schema:relatedLink
+    slot_usage:
+      motivation_type_name:
+        equals_string: linking
+      specificity_annotation:
+        range: SpecificityAnnotation
+        inlined: true
+      template_specificity:
+        range: TemplateSpecificityScores
+        inlined: true
+    slots:
+      - specificity_annotation
+      - template_specificity
+    comments:
+      - W3C Web Annotation standard motivation
+      - Enables Linked Open Data connections
+
+  CommentingMotivation:
+    is_a: AnnotationMotivationType
+    class_uri: oa:commenting
+    description: |
+      Motivation for adding commentary.
+
+      **DEFINITION**:
+
+      CommentingMotivation describes annotations where the intent is to
+      add a comment or opinion about the target resource.
+
+      **W3C WEB ANNOTATION**:
+
+      From oa:commenting:
+      > The motivation for when the user intends to comment about the Target.
+
+      **USE CASES**:
+
+      | Use Case | Example |
+      |----------|---------|
+      | Scholarly notes | Research observations |
+      | Curatorial notes | Internal cataloging notes |
+      | User comments | Public-facing comments |
+      | Editorial remarks | Publication annotations |
+
+      **HERITAGE CONTEXT**:
+
+      Comments add contextual knowledge:
+      - Provenance research notes
+      - Conservation observations
+      - Scholarly commentary
+      - Community engagement features
+    exact_mappings:
+      - oa:commenting
+    close_mappings:
+      - schema:Comment
+      - schema:UserComments
+    slot_usage:
+      motivation_type_name:
+        equals_string: commenting
+      specificity_annotation:
+        range: SpecificityAnnotation
+        inlined: true
+      template_specificity:
+        range: TemplateSpecificityScores
+        inlined: true
+    slots:
+      - specificity_annotation
+      - template_specificity
+    comments:
+      - W3C Web Annotation standard motivation
+      - User and scholarly engagement
+
+  AccessibilityMotivation:
+    is_a: AnnotationMotivationType
+    class_uri: hc:accessibilityMotivation
+    description: |
+      Motivation for providing accessibility support.
+
+      **DEFINITION**:
+
+      AccessibilityMotivation describes annotations created to make
+      heritage content accessible to users with disabilities.
+
+      **HERITAGE-SPECIFIC MOTIVATION**:
+
+      This extends W3C Web Annotation with heritage accessibility needs.
+      Not part of the standard oa: vocabulary but essential for inclusive
+      heritage access.
+
+      **USE CASES**:
+
+      | Use Case | Example |
+      |----------|---------|
+      | Alt-text | Image descriptions for screen readers |
+      | Audio description | Video narration for visually impaired |
+      | Closed captions | Text for hearing impaired |
+      | Sign language | Video interpretation |
+      | Easy read | Simplified text versions |
+
+      **HERITAGE CONTEXT**:
+
+      Heritage institutions have accessibility obligations:
+      - Museum audio guides and touch tours
+      - Archive reading room accommodations
+      - Library assistive technology support
+      - Digital platform WCAG compliance
+
+      **WCAG ALIGNMENT**:
+
+      Supports Web Content Accessibility Guidelines:
+      - WCAG 2.1 Success Criterion 1.1.1 (Non-text Content)
+      - WCAG 2.1 Success Criterion 1.2 (Time-based Media)
+    exact_mappings:
+      - hc:accessibilityMotivation
+    close_mappings:
+      - schema:accessibilityFeature
+      - schema:accessibilityHazard
+    related_mappings:
+      - wcag:Guideline
+    slot_usage:
+      motivation_type_name:
+        equals_string: accessibility
+      specificity_annotation:
+        range: SpecificityAnnotation
+        inlined: true
+      template_specificity:
+        range: TemplateSpecificityScores
+        inlined: true
+    slots:
+      - specificity_annotation
+      - template_specificity
+    comments:
+      - Heritage-specific extension beyond W3C standard
+      - Critical for inclusive heritage access
+      - Supports WCAG compliance
+
+  DiscoveryMotivation:
+    is_a: AnnotationMotivationType
+    class_uri: hc:discoveryMotivation
+    description: |
+      Motivation for enabling search and discovery.
+
+      **DEFINITION**:
+
+      DiscoveryMotivation describes annotations created specifically to
+      improve the findability and discoverability of heritage content.
+
+      **HERITAGE-SPECIFIC MOTIVATION**:
+
+      This extends W3C Web Annotation with heritage discovery needs.
+      Focus is on making collections searchable and browsable.
+
+      **USE CASES**:
+
+      | Use Case | Example |
+      |----------|---------|
+      | SEO metadata | Schema.org structured data |
+      | Faceted search | Filter-enabling metadata |
+      | Full-text indexing | OCR text for search |
+      | Named entity extraction | People, places, dates |
+      | AI-generated descriptions | ML-powered metadata |
+
+      **HERITAGE CONTEXT**:
+
+      Discovery is essential for heritage access:
+      - Collection portal search optimization
+      - Aggregator metadata enhancement (Europeana)
+      - Cross-collection discovery
+      - Semantic search enablement
+
+      **SCHEMA.ORG ALIGNMENT**:
+
+      Supports structured data for search engines:
+      - schema:WebPage, schema:CollectionPage
+      - schema:Breadcrumb navigation
+      - schema:SearchAction configuration
+    exact_mappings:
+      - hc:discoveryMotivation
+    close_mappings:
+      - schema:SearchAction
+      - dcat:Catalog
+    slot_usage:
+      motivation_type_name:
+        equals_string: discovery
+      specificity_annotation:
+        range: SpecificityAnnotation
+        inlined: true
+      template_specificity:
+        range: TemplateSpecificityScores
+        inlined: true
+    slots:
+      - specificity_annotation
+      - template_specificity
+    comments:
+      - Heritage-specific extension beyond W3C standard
+      - Enables collection discoverability
+      - Supports aggregator integration
+
+  PreservationMotivation:
+    is_a: AnnotationMotivationType
+    class_uri: hc:preservationMotivation
+    description: |
+      Motivation for supporting digital preservation.
+
+      **DEFINITION**:
+
+      PreservationMotivation describes annotations created to support
+      the long-term preservation of digital heritage content.
+
+      **HERITAGE-SPECIFIC MOTIVATION**:
+
+      This extends W3C Web Annotation with digital preservation needs.
+      Focus is on ensuring content remains accessible over time.
+
+      **USE CASES**:
+
+      | Use Case | Example |
+      |----------|---------|
+      | Format documentation | Technical metadata (PREMIS) |
+      | Checksum recording | Fixity verification |
+      | Migration notes | Format conversion history |
+      | Rights documentation | Preservation rights |
+      | Significant properties | What must be preserved |
+
+      **HERITAGE CONTEXT**:
+
+      Digital preservation is a core heritage function:
+      - Archive preservation planning
+      - Museum digital asset management
+      - Library digital preservation programs
+      - OAIS compliance documentation
+
+      **PREMIS ALIGNMENT**:
+
+      Supports PREMIS Data Dictionary:
+      - premis:Object (digital objects)
+      - premis:Event (preservation actions)
+      - premis:Agent (preservation actors)
+      - premis:Rights (preservation permissions)
+    exact_mappings:
+      - hc:preservationMotivation
+    close_mappings:
+      - premis:Event
+      - prov:Activity
+    slot_usage:
+      motivation_type_name:
+        equals_string: preservation
+      specificity_annotation:
+        range: SpecificityAnnotation
+        inlined: true
+      template_specificity:
+        range: TemplateSpecificityScores
+        inlined: true
+    slots:
+      - specificity_annotation
+      - template_specificity
+    comments:
+      - Heritage-specific extension beyond W3C standard
+      - Critical for digital preservation
+      - Supports OAIS and PREMIS compliance
+
+  ResearchMotivation:
+    is_a: AnnotationMotivationType
+    class_uri: hc:researchMotivation
+    description: |
+      Motivation for supporting research and analysis.
+
+      **DEFINITION**:
+
+      ResearchMotivation describes annotations created specifically to
+      support scholarly research and analysis of heritage content.
+
+      **HERITAGE-SPECIFIC MOTIVATION**:
+
+      This extends W3C Web Annotation with research needs.
+      Focus is on enabling scholarly use of heritage collections.
+
+      **USE CASES**:
+
+      | Use Case | Example |
+      |----------|---------|
+      | Citation annotation | Scholarly citations |
+      | Research notes | Analytical observations |
+      | Hypothesis marking | Research questions |
+      | Data annotation | Dataset documentation |
+      | Computational analysis | ML/AI analysis results |
+
+      **HERITAGE CONTEXT**:
+
+      Heritage institutions support research:
+      - Archive research services
+      - Museum scholarly access
+      - Library reference services
+      - Digital humanities projects
+
+      **CRM ALIGNMENT**:
+
+      Supports CIDOC-CRM research patterns:
+      - crm:E7_Activity (research activities)
+      - crm:E13_Attribute_Assignment (scholarly assertions)
+      - crm:E65_Creation (research outputs)
+    exact_mappings:
+      - hc:researchMotivation
+    close_mappings:
+      - crm:E7_Activity
+      - schema:ScholarlyArticle
+    slot_usage:
+      motivation_type_name:
+        equals_string: research
+      specificity_annotation:
+        range: SpecificityAnnotation
+        inlined: true
+      template_specificity:
+        range: TemplateSpecificityScores
+        inlined: true
+    slots:
+      - specificity_annotation
+      - template_specificity
+    comments:
+      - Heritage-specific extension beyond W3C standard
+      - Supports digital humanities and research
+      - Enables computational analysis documentation

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

@@ -5,6 +5,8 @@ imports:
 - linkml:types
 - ./VideoTextContent
 - ./VideoTimeSegment
+- ./AnnotationMotivationType
+- ./AnnotationMotivationTypes
 - ../slots/has_annotation_motivation
 - ../slots/has_annotation_segment
 - ../slots/has_annotation_type
@@ -347,20 +349,22 @@ classes:
           Web Annotation: motivatedBy describes why annotation was created.
 
           **Standard Motivations** (from W3C Web Annotation):
-          - classifying: Categorizing content
+          - ClassifyingMotivation: Categorizing content
-          - describing: Adding description
+          - DescribingMotivation: Adding description
-          - identifying: Identifying depicted things
+          - IdentifyingMotivation: Identifying depicted things
-          - tagging: Adding tags/keywords
+          - TaggingMotivation: Adding tags/keywords
-          - linking: Linking to external resources
+          - LinkingMotivation: Linking to external resources
+          - CommentingMotivation: Adding commentary
 
-          **Heritage-Specific**:
+          **Heritage-Specific Extensions**:
-          - accessibility: For accessibility services
+          - AccessibilityMotivation: For accessibility services
-          - discovery: For search/discovery
+          - DiscoveryMotivation: For search/discovery
-          - preservation: For digital preservation
+          - PreservationMotivation: For digital preservation
-        range: AnnotationMotivationEnum
+          - ResearchMotivation: For scholarly research
+        range: AnnotationMotivationType
         required: false
         examples:
-        - value: CLASSIFYING
+        - value: ClassifyingMotivation
           description: Annotation for classification purposes
       specificity_annotation:
         range: SpecificityAnnotation
@@ -403,36 +407,6 @@ enums:
         description: Automated video captioning/description
       CUSTOM:
         description: Custom annotation type
-  AnnotationMotivationEnum:
-    description: |
-      Motivation for creating annotation (W3C Web Annotation aligned).
-    permissible_values:
-      CLASSIFYING:
-        description: Categorizing or classifying content
-        meaning: oa:classifying
-      DESCRIBING:
-        description: Adding descriptive information
-        meaning: oa:describing
-      IDENTIFYING:
-        description: Identifying depicted entities
-        meaning: oa:identifying
-      TAGGING:
-        description: Adding tags or keywords
-        meaning: oa:tagging
-      LINKING:
-        description: Linking to external resources
-        meaning: oa:linking
-      COMMENTING:
-        description: Adding commentary
-        meaning: oa:commenting
-      ACCESSIBILITY:
-        description: Providing accessibility support
-      DISCOVERY:
-        description: Enabling search and discovery
-      PRESERVATION:
-        description: Supporting digital preservation
-      RESEARCH:
-        description: Supporting research and analysis
 slots:
   has_annotation_type:
     description: High-level type of video annotation
@@ -470,4 +444,4 @@ slots:
     range: boolean
   has_annotation_motivation:
     description: Motivation for creating annotation (W3C Web Annotation)
-    range: AnnotationMotivationEnum
+    range: AnnotationMotivationType

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

@@ -6,24 +6,43 @@ prefixes:
   hc: https://nde.nl/ontology/hc/
   linkml: https://w3id.org/linkml/
   oa: http://www.w3.org/ns/oa#
+  skos: http://www.w3.org/2004/02/skos/core#
+  crm: http://www.cidoc-crm.org/cidoc-crm/
 imports:
-- linkml:types
+  - linkml:types
+  - ../classes/AnnotationMotivationType
 default_prefix: hc
 slots:
   has_annotation_motivation:
     description: >-
-      Motivation for creating an annotation (Web Annotation vocabulary).
+      Motivation for creating an annotation (W3C Web Annotation vocabulary).
-    range: string
+      
+      The motivation describes why an annotation was created. Standard motivations
+      from the W3C Web Annotation vocabulary include classifying, describing,
+      identifying, tagging, linking, and commenting.
+      
+      Heritage-specific extensions include accessibility (for alt-text, captions),
+      discovery (for search optimization), preservation (for digital preservation),
+      and research (for scholarly use).
+      
+      **ONTOLOGY ALIGNMENT**:
+      - oa:motivatedBy - W3C Web Annotation predicate
+      - crm:P17_was_motivated_by - CIDOC-CRM motivation property
+      - skos:Concept - Motivation types are concepts in a vocabulary
+    range: AnnotationMotivationType
     slot_uri: oa:motivatedBy
     exact_mappings:
       - oa:motivatedBy
     close_mappings:
+      - crm:P17_was_motivated_by
       - dcterms:type
+    related_mappings:
+      - skos:Concept
     annotations:
       custodian_types: '["*"]'
       custodian_types_rationale: >-
-        Applicable to all heritage custodian types.
+        Applicable to all heritage custodian types that create annotations.
       custodian_types_primary: M
       specificity_score: 0.5
       specificity_rationale: >-
-        Moderately specific slot.
+        Moderately specific slot for annotation systems.

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

@@ -0,0 +1,29 @@
+id: https://nde.nl/ontology/hc/slot/motivation_type_description
+name: motivation_type_description_slot
+title: Motivation Type Description Slot
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  skos: http://www.w3.org/2004/02/skos/core#
+  dcterms: http://purl.org/dc/terms/
+imports:
+  - linkml:types
+default_prefix: hc
+slots:
+  motivation_type_description:
+    description: >-
+      Detailed description of an annotation motivation type including
+      purpose, characteristics, and typical use cases.
+    range: string
+    slot_uri: skos:definition
+    exact_mappings:
+      - skos:definition
+    close_mappings:
+      - dcterms:description
+    annotations:
+      custodian_types: '["*"]'
+      custodian_types_rationale: >-
+        Applicable to all heritage custodian types.
+      specificity_score: 0.6
+      specificity_rationale: >-
+        Moderately specific to annotation systems.

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

@@ -0,0 +1,28 @@
+id: https://nde.nl/ontology/hc/slot/motivation_type_id
+name: motivation_type_id_slot
+title: Motivation Type ID Slot
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  dcterms: http://purl.org/dc/terms/
+  skos: http://www.w3.org/2004/02/skos/core#
+imports:
+  - linkml:types
+default_prefix: hc
+slots:
+  motivation_type_id:
+    description: >-
+      Unique identifier for an annotation motivation type.
+    range: uriorcurie
+    slot_uri: dcterms:identifier
+    exact_mappings:
+      - dcterms:identifier
+    close_mappings:
+      - skos:notation
+    annotations:
+      custodian_types: '["*"]'
+      custodian_types_rationale: >-
+        Applicable to all heritage custodian types that use annotations.
+      specificity_score: 0.6
+      specificity_rationale: >-
+        Moderately specific to annotation systems.

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

@@ -0,0 +1,28 @@
+id: https://nde.nl/ontology/hc/slot/motivation_type_name
+name: motivation_type_name_slot
+title: Motivation Type Name Slot
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  skos: http://www.w3.org/2004/02/skos/core#
+  rdfs: http://www.w3.org/2000/01/rdf-schema#
+imports:
+  - linkml:types
+default_prefix: hc
+slots:
+  motivation_type_name:
+    description: >-
+      Canonical name for an annotation motivation type.
+    range: string
+    slot_uri: skos:prefLabel
+    exact_mappings:
+      - skos:prefLabel
+    close_mappings:
+      - rdfs:label
+    annotations:
+      custodian_types: '["*"]'
+      custodian_types_rationale: >-
+        Applicable to all heritage custodian types.
+      specificity_score: 0.6
+      specificity_rationale: >-
+        Moderately specific to annotation systems.