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In every session with PMP® Aspirants, I give emphasis on the Flow of Change Requests. PMBOK® 5th edition does not explicitly inform on Change Requests (or simply CRs) flow in various Knowledge Areas in the 5 Process Groups - in a combined way. However, in each of the 47 process area the flow for various inputs and outputs, including change requests, are shown. Nevertheless, if I take all the control and executing process areas in which CRs are acting as Inputs and/or Outputs (part of ITTO - Inputs, Tools and Techniques, Outputs), it will complicate the understanding.
It is best to simplify the approach to have an easy and quick understanding on PMBOK’s approach for CR Flow. In the below diagram, the key processes from "Integration Management" knowledge area are shown along with one process from "Quality Management" knowledge area. CRs coming from other control and executing processes from rest of the 8 knowledge areas are simply shown as inputs to "Perform Integrated Change Control" (PICC) process of "Integration Management" knowledge area.
|Overall Change Request Flow|
As shown above, various control process areas such as "Control Scope", "Validate Scope", "Control Schedule", "Control Costs", "Control Communications", "Control Procurements" - all will have Change Requests as their outputs. All of these are fed to PICC of Integration Management, from where the "Approved Change Requests" will be coming as output.
|Process, Knowledge Area and Process Group Participating in CR Flow|
The cross process group, cross knowledge knowledge area flow diagram for change request is as shown below, using Microsoft Visio. Individual processes are shown in their respective knowledge areas and process groups. The various forms on change requests are shown as inputs or outputs and are color coded.
Having shown the diagrams and table representing processes in the respective 10 knowledge areas and 5 process groups, there are 10 key points to note.
10 Key Points to Understand Change Request Flow:
- Change Requests can be of these types – “Preventive Action”, “Corrective Action”, “Defect Repair”, and “Document Updates”
- No Change Requests are created in any process/process area (out of 47) under “Initiating Process Group”, “Planning Process Group” or “Closing Process Group” (barring a exception).
- All Control Processes (all of them), e.g., Control Scope, Control Schedule, Control Cost, Control Risk, will generate “Change Requests”. Most of the Executing process groups will also have change requests as outputs.
- All these “Change Requests” will be fed to “Perform Integrated Change Control” process to have “Approved Change Requests” as outputs
- Changed Requests are approved by the “Change Control Board” (or Customer Control Board), operating under "Perform Integrated Change Control" process of Integration Management.
- All “Approved Change Requests” have to be executed so that they are part of the Product/Service/Result and hence fed to “Direct and Manage Project Work” process in Integration Management in Execution Process Group.
- During Execution, further Changes and/or new Change Requests are likely and hence it also will result in Change Requests, which will be again fed into “Perform Integrated Change Control” and follow Step – 4 and 5.
- All “Approved Change Requests” are also fed to “Control Quality” process in Quality Management as “Approved Change Requests” are not only to be executed, but also have to be Quality Tested.
- “Approved Change Requests” coming out of Control Quality process are known as “Validated Changes”.
- All “Validated Changes” are fed into “Monitor and Control Project Work” process so that the changes that are validated are monitored for some time before finally accepted. During Monitor and Control, new CRs are likely too! Hence, they will be again fed into PICC.
There are few other processes where Change Requests/Approved Change Requests are part of ITTO. However,from PMP exam perspective, you need to understand the above simple points to be able to answer many questions.
Update (9th Nov, 2014): Title changed to "Change Request Flow" in place of "Life Cycle" as Life Cycle gives a different meaning.