Process
Areas
(staged)

Level 2
 
REQM
 PP
 PMC
 SAM
 MA
 PPQA
 CM
Level 3
 
RD
 TS
 PI
 VER 
 VAL 
 OPF
 OPD
 OT
 IPM
 RSKM
 DAR
Level 4
 
OPP
 QPM
Level 5 
 
OPM 
 CAR

          3.5. Using CMMI Models
 CMMI Models 

CMMI models describe best practices that organizations have found to be productive and useful to achieving their business objectives. Regardless of your organization, you must use professional judgment when interpreting CMMI best practices for your situation, needs, and business objectives.

This use of judgment is reinforced when you see words such as “adequate,” “appropriate,” or “as needed” in a goal or practice. These words are used for activities that may not be equally relevant in all situations. Interpret these goals and practices in ways that work for your organization.

Although process areas depict the characteristics of an organization committed to process improvement, you must interpret the process areas using an in-depth knowledge of CMMI, your organization, the business environment, and the specific circumstances involved.

As you begin using a CMMI model to improve your organization’s processes, map your real world processes to CMMI process areas. This mapping enables you to initially judge and later track your organization’s level of conformance to the CMMI model you are using and to identify opportunities for improvement.

To interpret practices, it is important to consider the overall context in which these practices are used and to determine how well the practices satisfy the goals of a process area in that context. CMMI models do not prescribe nor imply processes that are right for any organization or project. Instead, CMMI describes minimal criteria necessary to plan and implement processes selected by the organization for improvement based on business objectives.

CMMI practices purposely use nonspecific phrases such as “relevant stakeholders,” “as appropriate,” and “as necessary” to accommodate the needs of different organizations and projects. The specific needs of a project can also differ at various points in its life.



Process
Areas
(continuous)


Process
management  
 
OPF
 OPD
 OT  
 
OPP  
 OPM

Project
management
 
PP
 PMC 
 REQM 
 
SAM  
 
IPM
 RSKM
 
QPM

Engineering
 
RD 
 TS
 PI
 VER 
 VAL
Support
 
CM
 PPQA
 MA
 
DAR
 CAR