我们在实践中发现，除非一个项目是完全空白的，否则，除了进行自上而下的分析外，还需对预先存在的代码和业务逻辑进行自下而上的分析。

In practice, we find that unless a project is entirely green field, in addition to a top-down analysis, there is a simultaneous bottom-up analysis of pre-existing code and business logic.

youdao

我们在实践中发现，除非一个项目是完全空白的，否则，除了进行自上而下的分析外，还需对预先存在的代码和业务逻辑进行自下而上的分析。

In practice, we find that unless a project is entirely green field, in addition to a top-down analysis, there is a simultaneous bottom-up analysis of pre-existing code and business logic.

youdao