Who is the BEST person to review developed application code to ensure it has been tested and verified?

While a different developer can provide valuable peer review on code quality, their primary role typically isn't the comprehensive, independent verification and validation against all requirements that a QA member performs.

Quality Assurance (QA) members are specifically responsible for independently verifying that application code adheres to requirements, has undergone sufficient testing, and meets quality standards. Their expertise lies in ensuring the overall quality and reliability of the software before release.

The developer who wrote the code has a conflict of interest and may overlook their own errors or assumptions, making them unsuitable for an objective review of testing and verification.

Managers typically oversee project progress and resources but generally lack the detailed technical expertise required to perform a thorough code review and assess specific testing and verification processes.