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UML Elements | Behavioral Diagram Elements | Use Case
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To work with extension points, follow the steps below:
1. Right-click on the Use Case element. The context menu displays.
2. Select the Advanced | Edit Extension Points... menu option. The Use Case Extension Points dialog
displays, listing defined points for that Use Case.
3. Select an extension point in the list and click on the appropriate button to edit or remove the extension
point, or to add a new one.
2.1.43.2 Rectangle Notation
You can display a Use Case 146 using rectangle notation. This displays the Use Case in a rectangle, with an
oval in the top right-hand corner. Any attributes, operations or constraints belonging to the Use Case are
shown, in the same style as a Class 152 .
To show a Use Case using rectangle notation, right-click on the Use Case object on the diagram and select
the Advanced | Use Rectangle Notation context menu option. This setting only applies to the selected Use
Case, and can be toggled on and off.
Note:
Actor
94
elements can also be displayed using rectangle notation.
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