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A data type for a subjective assessment that indicates belief that date content is exact or accurate. 

Complex type information


Schema document:

NIEM Properties:


  • Type based on xsd:token
    • Valid valueDescription
      UnknownThe accuracy of the specified date is not known.
      CircaAccuracy of the actual date is at, in, or of approximately about the specified date
      ExactThe specified date exhibits or is marked by strict, particular, and complete accordance with fact or a standard.


s:id [0..1]xsd:IDfrom group s:SimpleObjectAttributeGroup
s:metadata [0..1]xsd:IDREFSfrom group s:SimpleObjectAttributeGroup
s:linkMetadata [0..1]xsd:IDREFSfrom group s:SimpleObjectAttributeGroup

Used in

Type inheritance chain