在概念层次，设计备选参考架构模式，比如Martin Fowler定义的那些12或其它的7,13,14。
On the conceptual level, the design alternatives reference architectural patterns, such as those defined by Martin Fowler12 and others.7, 13, 14.
对设计的低层次的关注，与之相对的是更加恰当的，利用了指导开发工作的高层次模式和约束的架构级的关注。
A low-level focus on design, as opposed to a more appropriate, architecture-level focus that imposes high-level patterns and constraints that serve to gracefully guide the development effort.
阶层式架构是一个逻辑模式、设计或蓝图，帮助相连接层次间的通讯。
A layered architecture is a logical model, design, or blueprint that AIDS in communication between interconnecting layers.
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