The concept of integration is a very important element in the management role and in essence it illustrates much of what the project manager does in regard to tweaking the various processes to achieve the best output. The final project plan derived from the planning stage activities is the result of a complex interaction of the 10 knowledge areas (KAs). During the document review process, each of the KA subsidiary plans is validated for completeness and clarity. The project management plan is a document used to coordinate all project components and to aid in directing activities. Organization of the formal budget line items is typically standardized within the enterprise in order to fit their accounting structure. As the project plan phase reaches completion the need for communication to external entities increases. To motivate this behavior, realize that the primary core reason for project failure is judged to be communications related.