Class UML 2.5::Extend
Description:
A relationship from an extending UseCase to an extended UseCase that specifies how and when the behavior defined in the extending UseCase can be inserted into the behavior defined in the extended UseCase.Direct Superclasses: NamedElement, DirectedRelationshipDirect Subclasses: Class Precedence List: Extend, NamedElement, DirectedRelationship, Relationship, ElementProperties:
condition : Constraint (0 1); -- source Extend extendedCase : UseCase (1 1); -- source Extend extension : UseCase (1 1); -- source Extend
extensionLocation : ExtensionPoint (1 *); -- source ExtendAn ordered list of ExtensionPoints belonging to the extended UseCase, specifying
where the respective behavioral fragments of the extending UseCase are
to be inserted. The first fragment in the extending UseCase is associated
with the first extension point in the list, the second fragment with the
second point, and so on. Note that, in most practical cases, the extending
UseCase has just a single behavior fragment, so that the list of ExtensionPoints
is trivial.{ordered}
clientDependency : Dependency (0 *); -- source NamedElement name : String (0 1); -- source NamedElement nameExpression : StringExpression (0 1); -- source NamedElement namespace : Namespace (0 1); -- source NamedElement qualifiedName : String (0 1); -- source NamedElement visibility : VisibilityKind (0 1); -- source NamedElement source : Element (1 *); -- source DirectedRelationship target : Element (1 *); -- source DirectedRelationship relatedElement : Element (1 *); -- source Relationship ownedComment : Comment (0 *); -- source Element ownedElement : Element (0 *); -- source Element owner : Element (0 1); -- source ElementConstraints:
No additional constraints.Operations:
No additional operations.Send questions or comments to [email protected].