id: https://nde.nl/ontology/hc/classes/Unit
name: Unit
title: Unit
prefixes:
  linkml: https://w3id.org/linkml/
  hc: https://nde.nl/ontology/hc/
  qudt: http://qudt.org/schema/qudt/
  schema: http://schema.org/
imports:
  - linkml:types
  - ../slots/has_label
# default_range: string
default_prefix: hc
classes:
  Unit:
    description: >-
      Lightweight measurement denomination for quantity expressions when a
      label-based representation is sufficient.
    alt_descriptions:
      nl: Eenvoudige meeteenheid voor hoeveelheidsuitdrukking wanneer een label volstaat.
      de: Einfache Masseinheit fuer Mengenausdruecke, wenn eine labelbasierte Angabe ausreicht.
      fr: Unite de mesure legere pour exprimer des quantites lorsqu un libelle suffit.
      es: Unidad de medida ligera para expresar cantidades cuando una etiqueta es suficiente.
      ar: وحدة قياس خفيفة للتعبير عن الكميات عندما يكفي الاسم النصي.
      id: Satuan ukur ringan untuk menyatakan kuantitas ketika label sudah memadai.
      zh: 在标签即可满足需求时用于表达数量的轻量计量单位。
    structured_aliases:
    - literal_form: meeteenheid
      in_language: nl
    - literal_form: Masseinheit
      in_language: de
    - literal_form: unite de mesure
      in_language: fr
    - literal_form: unidad de medida
      in_language: es
    - literal_form: وحدة قياس
      in_language: ar
    - literal_form: satuan ukur
      in_language: id
    - literal_form: 计量单位
      in_language: zh
    class_uri: qudt:Unit
    broad_mappings:
    - qudt:Unit
    slots:
    - has_label
    annotations:
      custodian_types: '["*"]'
      custodian_types_rationale: Units apply to all heritage custodian types for measurement.
      custodian_types_primary: '*'
      specificity_score: 0.2
      specificity_rationale: Very low specificity - fundamental measurement concept.
      mapping_predicate: schema:unitCode,schema:unitText
      modeling_notes: |
        Use this class for simple label-based units.
        Use MeasureUnit when conversion metadata or dimensional semantics are required.
    examples:
    - value: "Unit:\n  unit_value: \"item\"\n  has_label:\n    - label_text:\
        \ \"Items\"\n"
      description: Simple item count unit.
    - value: "Unit:\n  unit_value: \"species\"\n  has_label:\n    - label_text:\
        \ \"Species\"\n  unit_uri: \"dwc:individualCount\"\n"
      description: Biological species count unit.
    - value: "Unit:\n  unit_value: \"linear_meter\"\n  has_label:\n    - label_text:\
        \ \"Linear Meters\"\n  unit_uri: \"qudt:M\"\n"
      description: Archival extent unit.
    comments:
    - Created from slot_fixes.yaml migration (2026-01-19)
    - Lightweight alternative to MeasureUnit class
    - Use with has_unit slot
    - For collection_size migration - default unit is "item"