Notes

It provides a preliminary delineation of roles and responsibilities, outlines the project objectives, identifies the main stakeholders, and defines the authority of the project manager. It serves as a reference of authority for the future of the project. The terms of reference are usually part of the project charter.
Project charter - Wikipedia

Purpose. The Project Management Plan (PMP) is a formal, approved document used to manage project execution. The PMP documents the actions necessary to define, prepare, integrate and coordinate the various planning activities. The PMP defines how the project is executed, monitored and controlled, and closed.

Enterprise Environmental Factors (EEF) are any or all environmental factors either internal or external to the Project that can influence the Project's success. EEF includes culture, weather conditions, government regulations, political situation, market conditions, etc., which are usually out of one's control.Aug 14, 2014

Organizational Process Assets are “the plans, processes, policies, procedures, and knowledge bases specific to and used by the performing organization”.