And observe that the transaction strategy is spread throughout the layers below the client, but not completely.
并且事务策略遍布于客户机下面的层中，但这不是绝对的。
The upper two layers represent processes selected by managers and imposed upon the lower levels for strategy and control purposes.
上面的两个层次代表过程是由管理人员选择的，他们为了策略和控制的目的强加了下面的层次。
Layers provided the overall architectural structure required to support a product-line development strategy by separating reusable and platform-specific software elements into different layers.
分层模式提供了支持某一产品线策略所必需的整个体系结构的结构，它将可重用和特定于平台的软件要素分离成不同的层。
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