This UML Interaction Overview Diagram Example depicts the interactions between the model's various entities. It combines the activity and sequence diagrams. Communication is nothing more than units of a classifier's behavior that provide context for interactions. Interaction is a set of messages exchanged between entities in the system to accomplish specific tasks. It may include any classifier feature to which it has access. The statements and the lifeline are critical components in the interaction diagram. The interaction overview diagram in UML starts the interaction between the objects by using message passing.
