用于文档编制、编译器检查和代码分析的工具可以使用这些额外信息。
This additional information is used by tools for the purposes of documentation, compiler checking, and code analysis.
当一个团队为当前的迭代确定目标之后，第一个步骤常常是分析它们的需求，并将它们编制在用例文档中。
After a team defines goals for a current iteration, the first step is often to analyze their requirements and document them in use cases.
一般来说，元数据的好处分为三类：文档编制、编译器检查和代码分析。
In general, metadata's benefits fall into three categories: documentation, compiler checking, and code analysis.
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