what is the difference between CMM and CMMI?

Answer Posted / vijaya

The first CMM (CMM v1.0) was developed for software and
released in August 1990.
Based on this success and the demand from other interests
CMMs were developed for other
disciplines and functions:
a. Systems Engineering
b. People
c. Integrated Product Development
d. Software Acquisition
e. Software Quality Assurance
f. Measurement

While organizations found these various CMMs to be useful
they also found them to be:
1. Overlapping
2. Contradicting
3. Lacking clean, understandable interfaces
4. Lacking standardization
5. Displaying different levels of detail

In addition, many organizations also had to deal with ISO
9001 Audits or TickIT audits based on ISO 9000-3

This resulted in expensive, confusing and conflicting
process improvement programs.

CMMI:
The CMM Integration Project was formed to:
1. Establish a framework to integrate current and
future models
2. Build an initial set of integrated models
The source models that served as the basis for the CMMI
include:
1. CMM for Software v2.0 Draft C
2. EIA ? 731 Systems Engineering
3. IPD CMM (IPD) v0.98a




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