Use Case Extension Points

Use extension points to specify the point of an extended Use Case where an extending Use Case's behavior should be inserted. The specification text can be informal or precise to define the location of the extension point.


How to

To work with extension points




Right-click on the Use Case element, and select the Advanced | Edit Extension Points... context menu option.

The Use Case Extension Points dialog displays, listing defined points for that Use Case.



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.



Conditions to apply the extending Use Case, and the extension point to use, should be attached as a note to the extend relationship

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