InstanceVariable
CDIFDataDescription::Classes::InstanceVariable
Definition
A cdi:InstanceVariable as referenced by schema:variableMeasured. Carries the variable's identification, physical data type, value domains, units, function, source, and concept-or-term references.
Diagram
Inheritance
No generalization relationships.
Attributes
| Name | Type | Multiplicity | Description |
|---|---|---|---|
| identifier | XsdAnyUri ↗ | [1] | @id - URI for the variable. |
| name | string | [0..1] | schema:name - label for the variable. |
| description | string | [0..1] | schema:description - free-text description. |
| alternateName | string | [0..*] | schema:alternateName - additional name(s). |
| physicalDataType | string | [1] | cdif:physicalDataType - physical representation type. Required at Data Description level. |
| minValue | string | [0..1] | schema:minValue - lower bound. |
| maxValue | string | [0..1] | schema:maxValue - upper bound. |
| unitCode | string | [0..1] | schema:unitCode - URL/code identifying the unit of measure. |
| unitText | string | [0..1] | schema:unitText - text label for the unit of measure. |
| platformType | string | [0..*] | cdi:platformType - the platform/system the variable was realized on. |
| simpleUnitOfMeasure | string | [0..1] | cdif:simpleUnitOfMeasure - plain-string unit-of-measure shorthand. |
| measurementTechnique | string | [0..*] | schema:measurementTechnique - measurement technique used for this variable. |
Associations
| Role | Target | Multiplicity | Kind |
|---|---|---|---|
| variableMeasured | ← Dataset ↗ | [1..*] | composition |
| takesSubstantiveValuesFrom | → SubstantiveValueDomain ↗ | [0..1] | association |
| takesSentinelValuesFrom | → SentinelValueDomain ↗ | [0..*] | association |
| uses | → CdifConceptOrTerm ↗ | [0..*] | association |
| hasIntendedDataType | → DefinedTerm ↗ | [0..1] | association |
| describedUnitOfMeasure | → CdifConceptOrTerm ↗ | [0..1] | association |
| function | → CdifConceptOrTerm ↗ | [0..*] | association |
| qualifies | → InstanceVariable | [0..*] | association |
| isDescribedBy | → StatisticsCollection | [0..*] | association |
| source | → DefinedTerm ↗ | [0..*] | association |
| measurementTechnique | → DefinedTerm ↗ | [0..*] | association |
| formats | ← AbstractMapping ↗ | [1] | association |
| formats | ← PhysicalMapping ↗ | [1] | association |
| formats | ← TextMapping ↗ | [1] | association |
| formats | ← LocatorMapping ↗ | [1] | association |
| indexes | ← ComponentPosition | [1] | association |
| appliesTo | ← Statistics | [0..*] | association |
| hasWeight | ← Statistics | [0..1] | association |
| indexedBy | ← StatisticsCollection | [0..*] | association |