Verification and Validation (V&V)

Trust, but always verify.

• 驗證（verification）：是在特定開發階段中，評估軟體是否符合階段開始前所定義條件(Criteira)的程式（IEEE-STD-610）。 => Do the thing right
• 確認（validation）: 是在開發階段後，評估軟體是否符合規格需求(Requirement)的程式（IEEE-STD-610）。 => Do the right thing

Reference: http://zh.wikipedia.org/wiki/%E8%BB%9F%E9%AB%94%E9%A9%97%E8%AD%89%E5%8F%8A%E7%A2%BA%E8%AA%8D

It is important to recognize that merely completing checklists with proper verification of existence and validation of proper implementation is insufficient to ensure software assurance. Checklists may help with compliance but they don't necessarily secure.All items in the checklist used that address the functionality and assurance aspect of the software must be verified and validated.