The technology of metric is an important method to ensure the software quality, but coupling is a complicate software attribute of object_oriented.

度量技术是保证软件质量的重要方法，而耦合性是面向对象系统中一个复杂的软件属性。

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Software testability is an important software attribute. Its research can help in improving software design, increasing testing effectiveness, and enhancing software quality.

软件易测性是软件的一种重要的质量属性，其研究对于改进软件设计，提高测试效力和从根本上提高软件质量具有重要的意义。

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