The Unified Modeling Language User Guide, 2nd Edition

Chapter 19

Interaction Diagrams

In this chapter

• Modeling flows of control by time ordering

• Modeling flows of control by organization

• Forward and reverse engineering

Activity diagrams, state diagrams, and use case diagrams are three other kinds of diagrams used in the UML for modeling the dynamic aspects of systems; activity diagrams are discussed in Chapter 20; state diagrams are discussed in Chapter 25; use case diagrams are discussed in Chapter 18.

Sequence diagrams and communication diagrams—which are collectively called interaction diagrams—are two of the diagrams used in the UML for modeling the dynamic aspects of systems. An interaction diagram shows an interaction, consisting of a set of objects and their relationships, including ...