Behavior Driven Development goes further by directly associating unit tests (and test cases) with the requirements via the use of natural language.

行为驱动开发则更进一步，通过使用自然语言，直接把单元测试(以及测试用例)同需求联系起来。

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When Dan first introduced behavior Driven Development, he changed the language commonly used in TDD, using the vocabulary of examples of behavior in place of tests.

当Dan率先介绍行为驱动开发时，他改变了在TDD中广泛使用的语言，转而使用行为性词汇来代替测试词汇。

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We can use Behaviour Driven Development, and the language of scenarios, Given, When and Then, to define these. This helps when it comes to automating the scenarios.

当需要自动化这些场景时，我们可以使用行为驱动开发（BDD）和场景语言Given、When、Then来定义这些（场景）。

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