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Tigris.org
Open Source Software Engineering Tools
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Welcome to the new Tigris! There have been some changes to the administration of mail lists. Project and list owners should check out the Discussion Services release notes. Building a Use Case DiagramThis tutorial consists of 7 screens, each of which is described in a section of
this page:
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This is how the final Use Case diagram of the "Enroll.zargo" example will look when we are finished. Notice in the above diagram that the Explorer (top-left) is in Diagram-centric perspective rather that the default Package-centric perspective.
Open the enroll.zargo project started from the Building a Class Diagram tutorial, and change the Explorer perspective from Package-centric to Diagram-centric (see diagram above).
In the Explorer (top-left), by double-clicking on "use case diagram", you will bring up the editor pane for your use case diagram. Notice that you now have a different toolbar displayed. In the name field of the Properties tab in the Details pane (bottom-right), you can rename the diagram to "enrollment use cases". Refer to Step #3 of Building a Class Diagram.
Add three actors to your diagram by double-clicking on
Add two new use cases using
Add two new associations using
Now you have all the skills necessary to complete a use case diagram. Refer to the enroll_usecase.zargo example to see the resulting diagram.
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in the toolbar (this is a shortcut that will allow you to add
multiple actors without having to go back to the toolbar). Name the actors, from top to bottom, Administrator,
Faculty and Student. Refer to 
on the toolbar, and name them "Close a
Course" and "Open a Course".
on the toolbar. For help on naming associations,
see