2d09776856
- Removed compliance_status slot and replaced it with has_or_had_status. - Updated has_or_had_status to use ComplianceStatus for structured representation. - Adjusted examples to reflect new structure for compliance status. - Updated documentation to indicate migration and provide details on the ComplianceStatus class.
140 lines
4.2 KiB
YAML
140 lines
4.2 KiB
YAML
# Unit - Simple unit class for measurement values
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# Created per slot_fixes.yaml migration for: collection_size
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# Creation date: 2026-01-19
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#
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# Rule compliance:
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# - Rule 38: Slot centralization with semantic URIs
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# - Rule 39: RiC-O temporal naming conventions
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# - Rule 53: Generic reusable slots
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#
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# Note: For complex unit definitions, use MeasureUnit class instead.
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# This class is for simple, label-based unit specifications.
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id: https://nde.nl/ontology/hc/classes/Unit
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name: Unit
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title: Unit
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prefixes:
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linkml: https://w3id.org/linkml/
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hc: https://nde.nl/ontology/hc/
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qudt: http://qudt.org/schema/qudt/
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schema: http://schema.org/
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imports:
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- linkml:types
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- ../slots/has_or_had_label
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default_range: string
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default_prefix: hc
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classes:
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Unit:
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description: >-
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A simple unit of measurement for quantities.
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**PURPOSE**:
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Lightweight unit class for cases where a simple label suffices.
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For complex unit definitions with conversion factors, symbols,
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and dimensional analysis, use MeasureUnit class instead.
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**COMMON UNITS FOR HERITAGE COLLECTIONS**:
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| Unit | Description | Example Usage |
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|------|-------------|---------------|
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| item | Individual objects | "500 items" |
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| species | Biological species | "200 species" |
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| specimen | Individual specimens | "10,000 specimens" |
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| volume | Books/bound volumes | "50,000 volumes" |
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| linear_meter | Archival extent | "500 linear meters" |
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| hectare | Site area | "32 hectares" |
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| square_meter | Floor area | "10,000 m²" |
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**QUDT ALIGNMENT**:
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Maps to `qudt:Unit` for semantic interoperability.
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**RELATIONSHIP TO MeasureUnit**:
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Unit is a simplified alternative to MeasureUnit. Use Unit when:
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- Only a text label is needed
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- No conversion factors required
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- Simple quantity expressions
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Use MeasureUnit when:
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- Need unit symbols and codes
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- Require dimensional analysis
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- Complex unit conversions needed
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class_uri: qudt:Unit
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exact_mappings:
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- qudt:Unit
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close_mappings:
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- schema:unitCode
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- schema:unitText
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slots:
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- has_or_had_label
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attributes:
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unit_value:
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range: string
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description: >-
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The unit identifier or label (e.g., "item", "species", "hectare").
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examples:
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- value: "item"
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description: Countable objects
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- value: "species"
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description: Biological species count
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- value: "linear_meter"
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description: Archival extent measurement
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- value: "hectare"
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description: Land area
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unit_uri:
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range: uriorcurie
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description: >-
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Optional URI for the unit in a standard vocabulary (QUDT, OM).
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examples:
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- value: "qudt:NUM"
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description: QUDT number/count unit
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- value: "om:hectare"
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description: OM hectare unit
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annotations:
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custodian_types: '["*"]'
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custodian_types_rationale: >-
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Units apply to all heritage custodian types for measurement.
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custodian_types_primary: "*"
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specificity_score: 0.2
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specificity_rationale: >-
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Very low specificity - fundamental measurement concept.
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examples:
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- value: |
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Unit:
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unit_value: "item"
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has_or_had_label:
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- label_text: "Items"
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description: Simple item count unit.
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- value: |
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Unit:
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unit_value: "species"
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has_or_had_label:
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- label_text: "Species"
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unit_uri: "dwc:individualCount"
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description: Biological species count unit.
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- value: |
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Unit:
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unit_value: "linear_meter"
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has_or_had_label:
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- label_text: "Linear Meters"
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unit_uri: "qudt:M"
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description: Archival extent unit.
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comments:
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- Created from slot_fixes.yaml migration (2026-01-19)
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- Lightweight alternative to MeasureUnit class
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- Use with has_or_had_unit slot
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- For collection_size migration - default unit is "item"
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