RPM for Ruby on Rails拥有开发者模式，它会把原始的性能数据保存在本地，开发者可以使用这些数据在开发阶段测试他们的应用程序的性能。

RPM for Ruby on Rails has a developer Mode, the raw performance data being saved locally and can be used by developers to test the performance of their application during development phase.

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然后这个“合成”模式提供向导来帮助开发者为组件编码。

This "composite" pattern then provides guidance to developers on how to code the components themselves.

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架构规则：架构约束规则允许开发者定义基于模式的规则，拒绝不同包中类之间的引用。

Architecture rules: Architecture constraint rules allow the developers to define the pattern based rules to deny references between classes in different packages.

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