How, specifically, does the scheduling function depend on the planning of the project? Which one should be done first? Why?

Describe, with specific examples or details, how the project schedule is used throughout the phases of a project $--$ from planning to closure.

Should a project have a regular reporting period?

Should all projects have the same reporting period? Why or why not? What types of information and data should be collected from the project plan and schedule during each reporting period?

What methods were used $($or should have been used$)$ to reflect the changes and communicate the changes to the stakeholder group?

Who should be able to initiate changes to a project schedule? to approve changes? What is the role of the project manager in adjusting timelines and project schedules?