1. Working out the Details
Activity Diagrams
Working out the Details

2. Definition Activity diagrams trace sequences of activities
They can be used to give a more detailed structure to use cases
Like everything else in UML they are iterative, beginning with general description of activities and then creating more detailed diagrams to describe those details

3. Basic Symbols
Or link

4. Simple Use Case

5. Activity Diagram for Use Case

6. Another use Case

7. Activity for Buy Produce

8. Swim Lanes
Swim lanes are lines that show divide the activities into object areas or domains
They can make an activity diagram that involves several objects easier to follow

9. Activity With Swim Lanes

10. Join

11. Fork