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Sams Teach Yourself UML in 24 Hours, Third Edition by Joseph Schmuller

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Chapter 10. Working with Communication Diagrams

What You'll Learn in This Hour:

  • What a communication diagram is

  • How to apply a communication diagram

  • How to model active objects, concurrency, and synchronization

  • Where communication diagrams fit into the UML

In this hour you'll learn about a diagram that's similar to the one you covered in the last hour. This one also shows the interaction among objects, but it does so in a way that's slightly different from the sequence diagram.

Like the sequence diagram, the communication diagram shows how objects interact. It shows the objects along with the messages that travel from one object to another. So now you may be asking yourself, “If the sequence diagram does that, why does the UML need another diagram? ...

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