176 lines
No EOL
6.2 KiB
YAML
176 lines
No EOL
6.2 KiB
YAML
id: https://nde.nl/ontology/hc/class/area
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name: area_class
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title: Area Class
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description: >-
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Class representing an area measurement with value, unit, and context.
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**RULE 53 COMPLIANT**: This is the authoritative class for area measurements,
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replacing domain-specific float slots like area_hectares, building_floor_area_sqm,
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and has_area_in_hectare.
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**REPLACES**:
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- area_hectares (OutdoorSite) - float in hectares
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- building_floor_area_sqm (HistoricBuilding) - float in square meters
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- has_area_in_hectare (bespoke, incorrectly created)
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**ADVANTAGES OVER SIMPLE FLOAT**:
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- Explicit unit specification (no ambiguity between m² and hectares)
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- Temporal context (measurement date for historic facilities)
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- Provenance (measurement method, source)
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- Estimation flag (is_estimate for approximate values)
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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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schema: http://schema.org/
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qudt: http://qudt.org/schema/qudt/
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geosparql: http://www.opengis.net/ont/geosparql#
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imports:
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- linkml:types
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- ../slots/has_or_had_label
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- ../slots/has_or_had_unit
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- ../slots/is_estimate
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- ../slots/measurement_date
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- ../slots/measurement_method
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- ../slots/quantity_value
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- ./MeasureUnit
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default_prefix: hc
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classes:
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Area:
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description: >-
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A measurement of spatial extent (area) with value, unit, and metadata.
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Captures area measurements for heritage facilities including outdoor sites,
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buildings, rooms, and storage areas. Supports multiple units (m², hectares,
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acres) with explicit unit specification.
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**TEMPORAL ASPECT**: Areas can change over time (building extensions,
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site acquisitions). The measurement_date captures when the area was measured.
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**ESTIMATION SUPPORT**: Heritage facilities often have estimated areas,
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especially for historic buildings. The is_estimate flag indicates uncertainty.
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class_uri: qudt:QuantityValue
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exact_mappings:
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- qudt:QuantityValue
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close_mappings:
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- schema:QuantitativeValue
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- geosparql:hasArea
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slots:
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- quantity_value # was: area_value (migrated 2026-01-22)
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- has_or_had_unit
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- measurement_date
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- is_estimate
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- measurement_method
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- has_or_had_label
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slot_usage:
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quantity_value:
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description: >-
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The numeric value of the area measurement.
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MIGRATED from area_value (2026-01-22) which was migrated from
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area_hectares, building_floor_area_sqm (Rule 53).
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Using generic quantity_value aligns Area semantics with Quantity class.
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range: float
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required: true
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examples:
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- value: 25.0
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description: 25 hectares (outdoor site)
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- value: 5000.0
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description: 5000 square meters (building)
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has_or_had_unit:
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description: >-
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The unit of measurement for this area.
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MIGRATED from implicit unit assumptions (Rule 53).
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range: MeasureUnit
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required: true
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inlined: true
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examples:
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- value:
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has_or_had_type: HECTARE
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has_or_had_symbol: "ha"
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description: Hectare unit for outdoor site
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- value:
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has_or_had_type: SQUARE_METER
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has_or_had_symbol: "m²"
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description: Square meter unit for building floor
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measurement_date:
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description: >-
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Date when the area was measured or recorded.
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range: date
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required: false
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examples:
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- value: "2024-01-15"
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description: Recent measurement
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- value: "1985-06-01"
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description: Historic measurement
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is_estimate:
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description: >-
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Whether the area is an estimate (true) or precise measurement (false).
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range: boolean
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required: false
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examples:
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- value: true
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description: Estimated area for historic building
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- value: false
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description: Precise surveyed measurement
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measurement_method:
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description: >-
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Method used to measure the area (survey, GIS, historical records, etc.).
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range: string
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required: false
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examples:
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- value: "GIS analysis"
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description: Geographic Information System measurement
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- value: "Land survey"
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description: Professional survey
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- value: "Historical records"
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description: From archival documents
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has_or_had_label:
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description: >-
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Human-readable label for the area measurement.
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range: string
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examples:
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- value: "Total site area"
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description: Label for outdoor site
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- value: "Building floor area"
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description: Label for building
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examples:
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- value:
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quantity_value: 25.0
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has_or_had_unit:
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has_or_had_type: HECTARE
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has_or_had_symbol: "ha"
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has_or_had_label: "Sculpture garden area"
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description: Outdoor site area in hectares (replaces area_hectares)
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- value:
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quantity_value: 5000.0
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has_or_had_unit:
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has_or_had_type: SQUARE_METER
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has_or_had_symbol: "m²"
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measurement_date: "2023-03-15"
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is_estimate: false
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measurement_method: "Architectural survey"
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has_or_had_label: "Total floor area"
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description: Building floor area in square meters (replaces building_floor_area_sqm)
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- value:
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quantity_value: 650.0
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has_or_had_unit:
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has_or_had_type: HECTARE
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has_or_had_symbol: "ha"
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is_estimate: true
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measurement_method: "Historical records"
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has_or_had_label: "Estate grounds"
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description: Historic estate grounds with estimated area
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annotations:
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custodian_types: '["*"]'
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custodian_types_rationale: >-
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Area measurements applicable to all heritage custodian types.
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specificity_score: 0.4
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specificity_rationale: >-
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Broadly useful class - area measurements relevant for site planning,
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collection storage, visitor capacity, and facility management.
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# REMOVED inline slots 2026-01-16 - Rule 48 violation
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# Slots are imported from ../slots/ - do not define inline |