An association permits an annotation to be placed on an ordered pair of entities rather than on just one. The first and second KeySets identify the start and end of the annotated "link."

Element NameAssociation
Parent ElementsODM
Element XPath(s)

/ODM/Association 

Element Textual ValueNone
AttributesStudyOID, MetaDataVersionOID
Child Elements(KeySet, KeySet, Annotation)
Usage/Business Rules
  • Other Information:
    • The first and second KeySets child elements identify the start and end of the annotated "link."
    • The StudyOID and MetaDataVersionOID attributes provide a context for interpreting CodeList references within the Annotation. They do not affect the meaning of the KeySets.

AttributeSchema Type or Enumeration ValuesUsageDefinitionBusiness Rule(s)
StudyOIDoidrefRequiredReference to an ODM Study element.
MetaDataVersionOIDoidrefRequiredReference to a MetaDataVersion element.

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