The revised edition of this very accessible book has been updated to provide a practical introduction to the design of object-oriented programs using UML. It includes detailed coverage of modelling techniques and notation, with worked examples throughout. The book contains substantial code examples in Java. Material for C++ programmers is provided at www.mcgraw-hill.co.uk/textbooks/priestley. The book clearly connects design concepts with code, and is ideal for people with programming experience who wish to learn about design. It is essential reading for computer science and software engineering undergraduates taking courses covering object-oriented techniques. All practitioners looking for a practical and accessible introduction to the subject will find it useful.