数据方面的质量是通过保证数据访问可靠性、数据访问可用性和支持数据存储的并发性与安全性等功能进行判断的。

The quality of data aspect is measured by the ability to ensure reliability of data accessed, availability of data accessed, being able to allow concurrency as well as security of the data in storage.

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测试是提高软件可靠性和保证软件质量的重要手段。

Testing is the most important approach to improve software reliability and assure software quality.

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需求工程是软件工程中一个不可缺少的、重要的一环，是保证软件质量、提高软件可靠性的关键。

Requirement engineering is necessary and important during software engineering, and crucial to guarantee software quality as well as improve software reliability.

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