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Parent Package: constraint_model
Class CONSTRAINT_REF

C_REFERENCE_OBJECT
   |
   +--CONSTRAINT_REF
Reference to a constraint described in the same archetype, but outside the main constraint structure. This is used to refer to constraints expressed in terms of external resources, such as constraints on terminology value sets.

Attributes
Signature	Optionality	Multiplicity	Constant	Documentation
reference : String	1	--		Reference to a constraint in the archetype local ontology.

Constraints
Name	Expression
Consistency	inv: not any_allowed
reference_valid	inv: reference <> Void