All of the UML diagram elements share common context menu commands. To use the context menu for an element, simply right click on the element in the Diagram view. To view the common context menu commands, see Common Element Context Commands.
You can model use case diagrams using either UML 1.4 or UML 2.0 features.
The context menus described in this section are specific to UML 1.4 use case diagram elements.
The use case element offers a special context command named, New, with a submenu for adding an extension point to a use case:
Adds an extension point to a use case element. For more information, see Adding an Extension Point.
For more information, see Common Element Context Commands.
The system boundary element offers a special context command named, New, with a submenu for adding a use case element. For more information, see Adding Use Case Elements within the System Boundary.
The context menus described in this section are specific to UML 2.0 use case diagram elements.
The subject element offers a special context command named, New, with a submenu for adding a use case element. For more information, see Adding Use Case Elements within the System Boundary.
The use case collaboration element offers a special context command named, New, with a submenu for inserting a subject or an actor element inside of a use case collaboration:
Inserts a subject element inside of the use case collaboration element. For more information, see Adding Use Case Elements within the Subject Element.
Inserts an actor element inside of the use case collaboration element.