quantities.yaml

id: https://w3id.org/linkml-common/quantities
name: linkml-common-quantities
title: linkml-common-quantities
description: |-
  Common Data Model Elements
license: MIT
see_also:
  - https://linkml.github.io/linkml-common

prefixes:
  linkml_common: https://w3id.org/linkml-common/
  linkml: https://w3id.org/linkml/
  biolink: https://w3id.org/biolink/
  schema: http://schema.org/
  PATO: http://purl.obolibrary.org/obo/PATO_
  fhir: http://hl7.org/fhir/
  qudt: http://qudt.org/vocab/unit/
  fibo.QuantitiesAndUnits: https://www.omg.org/spec/Commons/QuantitiesAndUnits/
  UO: http://purl.obolibrary.org/obo/UO_
  UCUM: http://unitsofmeasure.org/
default_prefix: linkml_common
default_range: string

imports:
  - linkml:types
  - core
  - time

classes:


  QuantityKind:
    is_a: Concept
    exact_mappings:
      - qudt:QuantityKind
      - fibo.QuantitiesAndUnits:ScalarQuantity

  Quantity:
    is_a: Intangible
    class_uri: fhir:Quantity
    union_of:
      - Quantity
      - QuantityRange
      - Ratio
    attributes:
      has_quantity_kind:
        range: QuantityKind
        description: The kind of quantity
    exact_mappings:
      - schema:Quantity

  SimpleQuantity:
    description: >-
      A quantity is a property that can be measured or counted
    class_uri: fhir:SimpleQuantity
    is_a: Quantity
    attributes:
      value:
        range: float
        description: The value of the quantity
      unit:
        range: UnitConcept
        exact_mappings:
          - schema:unitCode
          - qudt:unit
    exact_mappings:
      - fibo:ScalarQuantityValue


  Ratio:
    description: >-
      A tuple of two quantities
    class_uri: fhir:Ratio
    is_a: Quantity
    attributes:
      numerator:
        range: Quantity
        description: The numerator of the ratio
      denominator:
        range: Quantity
        description: The denominator of the ratio

  QuantityRange:
    description: >-
      A quantity range is a property that can be measured or counted
    class_uri: fhir:Range
    is_a: Intangible
    attributes:
      lower_bound:
        range: Quantity
        description: The lower bound of the range
      upper_bound:
        range: Quantity
        description: The upper bound of the range

  #UnitConversionOperation:
  #  description: >-
  #    A unit conversion operation
  #  is_a: MathematicalOperationExecution
  #  slot_usage:
  #    inputs:
  #      range: Quantity
  #      description: The input unit
  #      maximum_cardinality: 1
  #    outputs:
  #      range: Quantity
  #      description: The output unit
  #      maximum_cardinality: 1

  UnitConcept:
    is_a: Concept
    id_prefixes:
      - UO
      - UCUM
      - qudt