The authors of this book do not make any claims as to these arguments. We
believe the reader should be able to make up his own mind.
1. CMM Maturity Level 2 is the same as CMMI Maturity Level 2.
Because several of the process areas are named the same, uninitiated users
feel that the two models are not significantly different. We disagree. For
example, Requirements Management under the CMM only included requirements
as they related to building your software. So while you may have had
some systemwide requirements, the only responsibility you had toward them
was to use them as the basis for initially deriving software-related requirements.
You did not have to ensure that the higher-level requirements had
been met. Now, Requirements Management under CMMI includes all
requirements??”from the systems engineering people, the hardware people,
the software people, and any other requirements that need to be met. So the
scope has been greatly expanded. In addition, a few more process areas have
been added. For example, Measurement and Analysis is now its own process
area (PA), and includes not only metrics to collect, but describes different
activities recommended/required to be instituted.
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