24 n Interpreting the CMMI
What??™s the difference between the CMM and ISO? Well, both were developed
to improve the quality of systems. ISO was developed in Brussels, Belgium, and
related originally to the manufacturing arena. The CMM was developed in the
United States for managing the development of software systems. Over the years,
the CMM made its journey across the ocean and is now used almost as much internationally
as within the United States alone. ISO also crossed the pond making
inroads into the United States in manufacturing businesses, concentrating most
often in the Midwest.
ISO focuses mainly on broader issues of quality within an entire enterprise or
company. Executives of these organizations are often interviewed. The main product
of ISO is the creation of a quality manual that discusses quality initiatives to
be implemented throughout the enterprise. The CMM takes a much more limited
view. The CMM focuses on only software-intensive projects. It does not look at
an entire enterprise or company. It describes an organization (admittedly, ambiguously)
as several projects managed under one director (an example).
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