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
ExtendReferences the condition that must hold when the first ExtensionPoint is
reached for the extension to take place. If no constraint is associated
with the Extend relationship, the extension is unconditional.
{
composite}
Subsets: Element.ownedElement
extendedCase :
UseCase (1 1); -- source
Extend extension :
UseCase (1 1); -- source
Extend extensionLocation :
ExtensionPoint (1 *); -- source
Extend 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.
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