Project Management Plan as an input
My understanding of the Project Management Plan is that it tells us how to manage the different processes of the project (in addition of other purposes). Hence I would expect to have it as an input of allmost all project process, but it is not the case.
e.g. Define scope, create WBS.
Is my understanding of the project management plan wrong?
Here is an extract from the pmbok 4th edition about the project management plan:
The project management plan defines how the project is executed, monitored and controlled, and closed.
Level of implementation of each selected process,
Description of the tools and techniques to be used for accomplishing those processes, and how the selected processes will be used to manage the specific project.
How work will be executed to accomplish the project objectives.