Development of the project schedule is the project manager's sole responsibility.

• A. True
• B. False
• C. Often true
• D. Not at all

Answer: (B)

Scheduling a project is a collaborative process that the project manager leads but does not perform alone. The main idea tested here is that while the project manager coordinates and facilitates the creation of the schedule, input comes from the project team, subject matter experts, and key stakeholders who provide estimates, identify dependencies, and confirm constraints and priorities. The schedule is then reviewed with sponsors and stakeholders for alignment and approval. This collaborative approach ensures the schedule reflects realistic durations, resource availability, and critical milestones, and it stays tied to the project’s scope and goals. Therefore, stating that developing the schedule is the project manager’s sole responsibility isn’t accurate. The other perspective would imply either exclusive ownership by the PM or no PM involvement at all, both of which misrepresent how planning is typically conducted.