通过尽早在开发周期中开始您的测试、调试和概要分析，您可以提高完成代码的质量、性能和可伸缩性。

By starting your testing, debugging, and profiling early in the development cycle, you can enhance the quality, performance, and scalability of your finished code.

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敏捷的开发周期从客户开始。

The agile development cycle started with the customer.

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另外一种可能发生的情况，是在开发周期刚开始的阶段，您的测试团队就想测试开发中的原型。

Another possible scenario is that your testing team may want to start with testing the prototypes very early in the development lifecycle.

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