In the previous section we briefly covered the project management process framework. This framework consists of 47 processes. Each process belongs to a project management process group AND a knowledge area. Project management process groups are the overall order of performing the project management processes (see figure 3-1). Each process in addition to belonging to one of the project management process groups (initiating, planning, executing, monitoring and controlling, and closing) is a member of a knowledge group (Project Integration, Scope, Time, Cost, Quality, Human Resource, Communications, Risk, Procurement Management, and Stakeholder Management).
Figure 3-1: Each process belongs to a Project Management Process Group AND a Knowledge Area. Point illustrated for the Process “Plan Schedule Management” 
Knowledge areas are grouping of project management processes from the project management process framework that are associated with the same knowledge area. For instance processes concerned with project cost management are grouped in the Project Cost Management knowledge area.
Knowledge areas do not necessarily have processes in all 5 project management process groups (ONLY the Project Integration Management knowledge area has processes in all 5 project management process groups). As you can see in table 3-1 the Project Cost Management knowledge area has processes in the planning and monitoring & controlling process groups only.
 Project Management Institute, A Guide to Project Management Body of Knowledge (PMBOK Guide) –Fifth Edition, Project Management Institute, Inc., 2013, Table 3-1, Page 61 [Duplicate of Table 2-3]
To summarize, Knowledge Areas band together processes by association to a common knowledge area, while project management process groups are the overall order of the processes.
Knowledge areas are as following:
- Project Integration Management (6 processes)
- Project Scope Management (6 processes) [One of the Triple-Constraints]
- Project Time Management (7 processes) [One of the Triple-Constraints]
- Project Cost Management (4 processes) [One of the Triple-Constraints]
- Project Quality Management (3 processes)
- Project Human Resource Management (4 processes)
- Project Communications Management (3 processes)
- Project Risk Management (6 processes)
- Project Procurement Management (4 processes) [If the project has procurement]
- Project Stakeholder Management (4 Processes)
The rest of this section is dedicated to explaining each of these nine Knowledge Areas at a more detailed level. Keep in mind that understanding the processes from a Knowledge Area perspective AS WELL as a project management process group is essential to your understanding of the project management process thought throughout this course.