Doing that also allows for the analysis of the impact a change in requirements (or higher level of abstraction models) has on all the lower level of abstraction models.
这样做，还允许分析需求(或更高抽象级别的模型)中的变更对所有低级别抽象模型的影响。
Impact analysis is the ability to analyze the potential impact of a change to a system through all levels of abstraction, as well as within each level of abstraction.
影响分析就是分析潜在变更在整个抽象层以及抽象的每个层面对一个系统的影响的分析能力。
For this and the next installment, I tackle code reuse via refactoring and the attendant abstraction impact.
为此，在本文与此后的文章，我将通过重构以及随之而来的抽象影响来处理代码重用问题。
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