Step 5 - Specifying method body for operation
Part of the method body of operations being assigned to transitions can be defined by editing the Exit property of a transition. To do this:
1. Right click on the transition where operation was assigned.
2. Click on the drop down menu next to the Exit field, then select Create Activity....
3. Fill in the Body. Click OK to confirm.
4. Click OK to confirm and go back to diagram.