An important input to the plan quality management process is requirements documentation. This is because:

a$.$ the organization will have a uniform set of specific quality requirements that every project must adhere to$.$

b$.$ requirements include the schedule and cost information that must be balanced against quality needs for the project.

c$.$ requirements documentation captures the stakeholder expectations that the project should meet.

d$.$ the sponsor's directives for the project's level of quality are expressed in the requirements.