本书提供了一套明确无误的，经过实战检验的模式语言以及多种重构策略。

本书里介绍了大量对于应用程序架构极有帮助的模式，详细分析了用于各种最佳实践的通用模式，同时也讲解了避免不佳实践的方法。-This book provides a clear and unmistakable, after actual inspection of the pattern language and a variety of strategies reconstruction. This book describes the application architecture for a large number of very helpful model, a detailed analysis of best practices for a variety of generic models, but also on the way to avoid poor practice.