Creation of object model diagrams in response to activity diagram changes

In activity diagrams that have swimlanes that represent classifiers, if you connect actions in different swimlanes with a control flow or object flow, an object model diagram will be created. The new object model diagram will contain the relevant elements, connected by flows.

To have an object model diagram created automatically:

1. Verify that the swimlanes each represent classifiers.
2. Connect an action in one swimlane with an action in the other swimlane, using a control flow or an object flow.