What is the function of a Quality Plan? Who must create it?

The Quality Plan effectively defines how the work is to be executed and this is complementary to the Project Plan that is concerned along with what is to be completed, when and by whom. This Quality Plan documents the methods and standards which will be used to execute the work and also to check that this meets its described quality standards. The executed plan gives a source of reference for the project team to tell them how they must be approaching their work. This Quality Plan must be created by the project manager and gives him or her with an opportunity to actually think through what methods are most suitable to this particular project.