Based on past experience, we knew that most feature and system defects we discovered in testing resulted from ambiguous requirement definitions.

根据过去的经验，我们知道通过模糊的需求定义，特性和系统缺陷会大量出现在测试结果里。

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Based on the model, this paper presents a testing requirement reduction method to generate the reduced testing requirement set, which is the basis of test suite generation, reduction and optimization.

基于此模型，提出一种测试需求约简方法，可以获得精简测试需求集，作为测试用例集生成和约简的基础，从而实现测试用例集优化。

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According to the analysis for the feature and requirement of testing fixture design, the general designing and modeling methods of testing fixture based on conventional CAD software is presented.

在分析了检具设计的特点和要求的基础上，提出了在通用CAD软件平台上进行检具设计建模的一般方法。

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