Designed for students and practitioners learning about object- and component-based software design and development, the book encourages a pragmatic and open-minded approach to real-life software engineering. It places UML in the context of the software engineering discipline as a whole, providing readers with a practical understanding of best practice in software design and development. Features of UML discussed in this edition include: The ball and socket notation for interfaces. New notation for sequence diagrams. UML 2`s two different kinds of state machines, and when to use them. Revised component structure and deployment diagrams. Using UML also provides a wealth of learning aids, including: Self-test questions to promote understanding. Discussion questions to encourage deeper exploration. Technical notes on specific UML features. ...