Verification and Vaildation 辨别

Verification: Confirmation by examination and through provision of objective evidence that specified requirements havebeen fulfilled. [ISO 9000]

验证：通过检查和提供客观证据来证实指定的需求是否已经满足。[ISO 9000]

Validation: Confirmation by examination and through provision of objective evidence that
the requirements for a specific intended use or application have been fulfilled. [ISO 9000]

确认：通过检查和提供客观证据来证实特定目的功能或应用已经实现。[ISO 9000]

辨析：验证(verification) 产品是否正确的按着设计文档实现功能。确认(validation) 产品是否正确的按着客户需求被实现功能。 也就是产品通过了验证测试但是不一定会通过确认测试。这也就是为什么要提早介入测试，让设计文档尽可能准确的符合需求文档的要求。需求和设计文档之间的Gap越小，两种测试就越可能得到相同的结果。