Capability Maturity Model Integration (CMMI), is a process improvement
approach, provided by Carnegie Mellon University, United States, whose goal is
to help organisations improve their performance. CMMI can be used to guide
process improvement across a project, a division, or an entire organisation.
Currently supported is CMMI Version 1.3.
In CMMI Certification
Provider models with a staged representation, there are five maturity
levels designated by the numbers 1 through 5.
Initial
–
Process unpredictable, poorly controlled and reactive approach.
Managed
–
Process characterized for projects and adopts reactive approach.
Defined –
Process characterized for the Organization and adopts proactive approach
Quantitatively
Managed
–
Process measured and controlled.
Plan
–
Focusing on Continual process improvement.
CMMI
CURRENTLY ADDRESSES THE FOLLOWING THREE AREAS
Product and service
development —
CMMI for Development (CMMI-DEV),
Service establishment,
management —
CMMI for Services (CMMI-SVC), and
Product and service acquisition
—
CMMI for Acquisition (CMMI-ACQ).
APPRAISAL
·
An organization cannot be certified in CMMI; instead, an organization is
appraised. Depending on the type of appraisal, the organization can be awarded
a maturity level rating (1-5) or a capability level achievement profile.
·
Many organizations find value in measuring their progress by
conducting an appraisal. Appraisals are typically conducted for one or more of
the following reasons:
·
To determine how well the organization’s processes compare to CMMI
best practices, and to identify areas where improvement can be made
·
To inform external customers and suppliers of how well the
organization’s processes compare to CMMI best practices
·
To meet the contractual requirements of one or more customers
Appraisals of organizations using a CMMI
Certification model must conform to the requirements defined in the
Appraisal Requirements for CMMI (ARC) document. There are three classes of
appraisals, A, B and C, which focus on identifying improvement opportunities
and comparing the organization’s processes to CMMI best practices. Of these,
class A appraisal is the most formal and is the only one that can result in a
level rating. Appraisal teams use a CMMI model and ARC-conformant appraisal
method to guide their evaluation of the organization and their reporting of
conclusions. The appraisal results can then be used (e.g., by a process group)
to plan improvements for the organization.
The Standard CMMI Appraisal Method
for Process Improvement (SCAMPI) is an appraisal method that meets all of the
ARC requirements. Results of an SCAMPI appraisal may be published (if the
appraised organization approves) on the CMMI Web site of the SEI. SCAMPI also
supports the conduct of ISO/IEC 15504, also known as SPICE (Software Process
Improvement and Capability Determination), assessments etc.
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