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Four approaches are shown in
the left column. The four right columns represent model experience and process
improvement experience. An entry with a + sign indicates a positive impact and a
??“ sign a negative impact.
The two representations are not mutually exclusive! Each representation contains
the same basic information??”it is just structured differently. Each representation
promotes process improvement and can be used in appraisals. The continuous
representation allows the organization to choose which process areas to focus on,
as well as which discipline to focus on (software engineering, systems engineering,
hardware engineering). The CMMI also suggests that tailoring of the model may
be done but ??¦
Caveat: The more tailoring of the model done, the less likely an organization is to
achieve its improvement goals. The CMMI contains best practices of organizations.
If you deviate from a best practice, you must strongly justify why, and substitute
another practice that satisfies the intent of the CMMI practice originally listed.


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