You can add use case diagrams to models to provide various
views of the problem domain. Depending on the complexity of the
system you are modeling, you can have multiple diagrams of different
types in a single model.
Before you can add use case diagrams to a model,
you must have a UML modeling project open in the Modeling perspective.
To add a use case diagram to a model:
- In the Model Explorer view,
right-click a model; then click .
- Type a name for the diagram and press Enter.