-          Each process group is made up of a collection of processes used throughout the project life cycle

-          PMBOK Guide groups these processes into nine categories that it calls The Project Management Knowledge Areas

-          Knowledge Areas

• Bring together processes by commonalities, whereas Project Management Process Groups are more or less the order in which you perform the project management processes
• Nine Knowledge Areas are as follows:
  • Project Integration Management
  • Project Scope Management
  • Project Time Management
  • Project Cost Management
  • Project Quality Management
  • Project Human Resource Management
  • Project Communications Management
  • Project Risk Management
  • Project Procurement Management

Reference:

PMP Project Management Professional Exam Study Guide, Includes Audio CD

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