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- Use case icon: ellipse;
- Use case name: a label inside or below the ellipse icon;
- Use case documentation: textual description (optional);
- Use case generalisation to inherit behaviour;
- Use case extension stereotypes
<<include>>
(to include factored out common behaviour) and <<extend>>
(to extend into variants by adding extra behaviour)
- A typical use of a Computer System by an external user (actor) involving one or more sequences of actions in the system on behalf of the user;
- Capture of a system functionality (user requirement) in a use case;
- Use case realized by a collaboration in the system;
- Use case instance manifests as a scenario;
- A use case encompasses all possible scenarios for it.
Ananda Amatya
11/3/1999