软件架构是什么。本书以全英文的方式，介绍了软件结构的定义，类型，案例分析，共享信息模型，设计步骤，常规的模型与规范定义，以及架构设计使用的工具等内容。-What is software architecture. Book to the whole English way of introduction of the definition of software architecture, type, case studies, shared information model, the design steps, the conventional definition of the models and norms, as well as architecture design tools such as the use of the content.