Process Areas in Capability Maturity Model (CMM)

The Capability Maturity Model Integration (CMMI), based process improvement can result in better project performance and higher quality products.
A Process Area is a cluster of related practices in an area that, when implemented collectively, satisfy a set of goals considered important for making significant improvement in that area.
In CMMI, Process Areas (PAs) can be grouped into the following four categories to understand their interactions and links with one another regardless of their defined level:
Process Management : It contains the cross-project activities related to defining, planning, resourcing, deploying, implementing, monitoring, controlling, appraising, measuring, and improving processes. Process areas are :
- Organisational Process Focus.
- Organisational Process Definition.
- Organisational Training.
- Organisational Process Performance.
- Organisational Innovation and Deployment.

Project Management : The process areas cover the project management activities related to planning, monitoring, and controlling the project. Process areas are :
- Project Planning.
- Project Monitoring and Control.
- Supplier Agreement Management.
- Integrated Project Management for IPPD (or Integrated Project Management).
- Risk Management.
- Integrated Teaming.
- Integrated Supplier Management.
- Quantitative Project Management.

Engineering : Engineering process areas cover the development and maintenance activities that are shared across engineering disciplines. Process areas are :
- Requirements Development.
- Requirements Management.
- Technical Solution.
- Product Integration.
- Verification.
- Validation.

Support : Support process areas cover the activities that support product development and maintenance. Process areas are :
- Process and Product Quality Assurance.
- Configuration Management.
- Measurement and Analysis.
- Organisational Environment for Integration.
- Decision Analysis and Resolution.
- Causal Analysis and Resolution.