To better understand model-centric development concepts, take a step back from the code and analyze the behaviour of your system.

为了更好地理解以模型为中心的开发的概念，需要退一步回到源代码并且分析系统的行为。

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Traditional requirements engineering, the first step in the software development process, determines the functional and nonfunctional needs or conditions that must be met for a new product or system.

作为软件开发流程中的第一步，传统需求工程确定新产品或系统所必须满足的功能性和非功能性需求或条件。

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The first step in integrating Purify into your software development and testing process is to modify your build and test system.

在将Purify整合到您的软件开发和测试过程中的第一步是修改您的构建和测试系统。

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