Which type of tool would be used for the quality planning activity?

While reviewing a project management plan for approval, one of the key stakeholders states that the project needs to be completed three weeks prior to the planned date.
How should the project manager address this issue?

A project is in the closure phase, and most activities will be completed within the next two weeks. The project manager notices that a vendor payment will be due in 120 days.
What should the project manager do?

In the Plan Stakeholder Management process, expert judgment is used to:

Which process involves subdividing project deliverables and project work into smaller, more manageable portions?