Who has the authority to approve or reject changes within the change management process?

The revision manager is the individual responsible for overseeing the change management process, which includes the authority to approve or reject changes. This role typically involves evaluating proposed changes, ensuring they align with organizational goals, and assessing their potential impact. The revision manager acts as a gatekeeper, ensuring that only changes that meet the necessary criteria and standards are implemented.

Other roles, while important in the overall project or application lifecycle, do not usually hold the same level of authority over change management decisions. The application architect focuses on the design and integration of the system. The strategy designer is involved in defining business strategies and objectives, but not specifically in change approvals. The IT governance board may have oversight responsibilities, but its role is more about ensuring that changes comply with broader organizational policies rather than managing the approval process directly. Thus, the revision manager's position as the approver within the change management context makes it the correct answer.