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A directed relationship represents a relationship between a collection of source model elements and a collection of target
model elements.
Description
A directed relationship references one or more source elements and one or more target elements. DirectedRelationship is an
abstract metaclass.
Generalizations
•
“Relationship? on page 79
Attributes
No additional attributes
Associations
• / source: Element [1..*] Specifies the sources of the DirectedRelationship. Subsets Relationship::relatedElement. This is a derived union.
• / target: Element [1..*] Specifies the targets of the DirectedRelationship. Subsets Relationship::relatedElement. This is a derived union.
Constraints
No additional constraints
Semantics
DirectedRelationship has no specific semantics. The various subclasses of DirectedRelationship will add semantics appropriate
to the concept they represent.
Notation
There is no general notation for a DirectedRelationship. The specific subclasses of DirectedRelationship will define their
own notation. In most cases the notation is a variation on a line drawn from the source(s) to the target(s).