UML Designer User's Guide


Making links between elements

Use cases can be related to requirements. They elaborate upon what the requirements entail, and in some cases they can uncover additional requirements. Each use case satisfies one or more requirements; if a use case does not satisfy any requirement, either a new requirement should be added, or the use case is outside the scope of the system and should be dropped.

In UML Designer, you can create links between model elements in order to show this "satisfies" relationship, as well as other relationships. Such links contribute to traceability. Traceability is the ability to move between elements at different levels of abstraction. For example, you can track which use cases satisfy each requirement, or which requirements are satisfied by each use case. This traceability helps to clarify why the elements in the model are what they are and how they became that way.


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