- Open up the Visio 2013
- Search for online templates > UML Use Case.
- Drag a Subsystem shape onto the drawing page. The subsystem can represent your entire system or a major component.
- Double-click the Subsystem shape, and then type a new name for it. Click outside the shape on the drawing page.
- Drag Use Case shapes from the Use Case stencil and place them inside the subsystem boundary
- Drag Actor shapes to the outside of the subsystem boundary. And then type a new name for it by double click the actor.
- Use connector shapes to indicate relationships between use cases and actors. There are five connectors available :
- Association : Shows the relationship of an actor to a use case.
- Dependency : Indicates that one use case has a dependency on another.
- Generalization : Indicates that a use case is a specific way to achieve goals of the general use case.
- Include : Shows how a use case is broken into smaller steps.
- Extend : Shows that one use case adds functionality to another.
Example: To indicate a relationship between an actor and a use case in a use case diagram, drag an Association connector shape onto the drawing page.
- Move the Association shape to a connection point on an Actor shape until you see the end of the association line that means it connects with the object.
- Save the diagram.
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