Who maintains and updates the Work Breakdown Structure in a program?

The Work Breakdown Structure (WBS) is a crucial project management tool that breaks down a program into smaller, manageable components or work packages. It serves as a foundation for project planning, scheduling, and cost estimation. The responsibility for maintaining and updating the WBS typically falls to the program manager's office. This is because the program manager plays a central role in overseeing the project and ensuring that all components align with the overall objectives and scope.

The program manager's office is equipped with the necessary knowledge of the project's characteristics, requirements, and overall direction, making it the appropriate authority to adjust the WBS as circumstances change throughout the lifecycle of the program. This involvement also ensures that any updates are consistent with the program's vision and strategic goals.