Building Diagrams:

Building a State Diagram

This tutorial consists of 8 screens, each of which is described in a section of this page:
This tutorial builds the Use Case Diagram of the Enroll.argo project.
(The screenshots in this tour were made with Argo/UML v0.6.2)

• 01. The Finished Diagram
• 02. Create a State Diagram
• 03. Change to State Diagram
• 04. Add Initial and Final States
• 05. Adding States
• 06. Adding Transitions
• 07. Add a Composite State
• 08. Finish

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This is what the final appearance of the State diagram inside the Enroll.argo example will look we are finished. The Navigation, To Do, and Details panes have all been omitted in order to show what the complete diagram will look like. Every state diagram is associated with exacltly one class. In this case, the state diagram above is associated with the Grad class from the class diagram of Enroll.argo.

To create a new state diagram, you must first select the class that you would like to make the state diagram for, and then choose Create-Diagrams-StateDiagram. Once this is done, name the state diagram "Grad states". Double-click on "Grad States" to go to the state diagram editor pane.

Change the Navigation perspective to Diagram-centric. This does not have to be done to create the state diagram, but it helps keep the tutorial clear. Refer to Step #2 of Building a Use Case Diagram for more help.

Use to place the initial state, and to place the final states.

It would be easiest to double-click on , and then to place and name your seven states. Use the broom tool as needed for alignment. (Note: Pressing the Control key and dragging the mouse allows you to use the broom tool without using the toolbar).

Next, add and name the Trigger for all of the transitions .

A composite state contains other states. Place one of these in the diagram and then put the "writeDissertation" and "finalDefense" states within it.

Now your diagram is complete!