Both a tutorial and a reference guide, this manual presents a number of techniques for solving recurring software design problems in a comprehensive manner which includes many guidelines and constraints regarding practical applications.

About this Book xi

Guide to the Reader xvii

1 Patterns 1

2 Architectural Patterns 25

3 Design Patterns 221

4 Idioms 345

5 Pattern Systems 359
 
6 Patterns and Software Architecture 383

7 The Pattern Community 413

8 Where Will Patterns Go? 419

9 Notations 429

Glossary 433

References 441

Index of Patterns 455

Index 459

Pattern - Oriented Software Architecture A System of Patterns Frank Buschmann, Regine Meunier, Hans Rohnert, Peter Sommerlad, Michael Stal of Siemens AG, Germany Pattern-oriented software architecture is a new approach to software development. This book represents the progression and evolution of the pattern approach into a system of patterns capable of describing and documenting large-scale applications. A pattern system provides, on one level, a pool of proven solutions to many recurring design problems. On another it shows how to combine individual patterns into heterogeneous structures and as such it can be used to facilitate a constructive development of software systems. Uniquely, the patterns that are presented in this book span several levels of abstraction, from high-level architectural patterns and medium-level design patterns to low-level idioms. The intention of, and motivation for, this book is to support both novices and experts in software development. Novices will gain from the experience inherent in pattern descriptions and experts will hopefully make use of, add to, extend and modify patterns to tailor them to their own needs. None of the pattern descriptions are cast in stone and, just as they are borne from experience, it is expected that further use will feed in and refine individual patterns and produce an evolving system of patterns. Visit our Web Page http://www.wiley.com/compbooks/

Patterns. Architectural Patterns. Design Patterns. Idioms. Pattern Systems. Patterns and Software Architecture. The Pattern Community. Where Will Patterns Go? Notations. Glossary. References. Index of Patterns.