实际上，一些关系性元素已经采用某些技术让它们看起来像XML，以便利用层次化xml模型丰富的功能。

In fact, some of its relational neighbors have adapted techniques that make them look like XML in order to exploit the richness of the hierarchical XML model.

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对 Rails 模型进行单元测试，然后通过功能测试和集成测试在更高层次上确保 Rails 应用程序符合设计预期。

Unit tests test the Rails models, while functional and integration tests ensure the Rails application works as designed at a higher level.

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层次结构分解，基于企业业务模型，以确保最终的服务与当前和将来的业务功能一致。

Hierarchical decomposition, based on the enterprise business model, to ensure alignment of resulting services with current, and future, business functions.

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