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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, DirectedRelationship

Direct Subclasses:

Class Precedence List: Extend, NamedElement, DirectedRelationship, Relationship, Element

Properties:

condition : Constraint (0 1); -- source Extend

References 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

The name of the 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 Element

Constraints:

No additional constraints.

Operations:

No additional operations.



Send questions or comments to xmi-interop@omg.org.