Briefly explain the relationship between the five PMBOK process groups and the four phases of the PMBOK generic life cycle (shown below).

Project Life Cycle Pre-Project Work Starting the Project Organizing and Preparing Carrying out the Work Completing the Project Timeline Noods losessment Phase Gate Business Case Project Charter Bonsfits Management Plan Project Management Plan Generic Phases Figure 1-8. Interrelationship of Needs Assessment and Critical Business/Project Documents