CAPABILITY MATURITY MODEL (CMM): CMM is a strategy for improving
the software process, irrespective of the actual life cycle model used.
Software Engineering Institute (SEI) of Carnegie-Mellon University developed
CMM in 1986. CMM is used to judge the maturity of the software processes of an
organization and to identify the key practices that are required to increase
the maturity of these processes.
Different levels of CMM:
1) Initial (maturity level 1)-At this, the lowest
level, there are essentially no sound software engineering
management practices in place in the organization. Instead everything is done
on adhoc basis. In maturity level 1 organization, the software process is
unpredictable.
2) Repeatable (maturity level 2)-At this level,
policies for managing a software project and procedures to
implement those policies are established. Planning and managing new projects is
based on experience with similar projects. An objective in achieving level 2 is
to institutionalize effective management processes for software projects, which
allow organizations to repeat successful practices, developed on other
projects. The software process capability at level 4 organizations can be
summarized as disciplined.
3) Defined (maturity level 3)- At
this level, the standard process for developing and maintaining
software across the organization is documented, including both softwareengineering and management processes. Processes
established at level 3 are used to help the software managers and technical
staff to perform more effectively. The software process capability at level 4
organizations can be summarized as standard and constituent.
4) Managed (maturity level 4)-At this level, the
organization sets quantitative quality goals for both software
products and processes. Productivity and quality are measured for important
software process activities across all projects as part of an organizational
measurement program. The software process capability at level 4 organizations
can be summarized as 'predictable'.
5) Optimizing (maturity level 5)-At this level, the
entire organization s focused on continuous process improvement.
The organizations have the means to identify weaknesses and strengthen the
process proactively, with the goal of preventing the occurrence of defects. .
The software process capability at level 4 organizations can be summarized as
continuously improving.
ISO 9001 and CMM:
1: Management responsibility: ISO 9001 requires that the quality policy be defined, documented, understood,implemented,andmaintained.Whereas in CMM, management esponsibility for qualitypolicy and verification activities is primarily addressed in software quality assurance.
2: Document control:ISO 9001 requires that the distribution and modification of documents be controlled. In the CMM, the configuration management practices characterizing document control are described in software configuration management.
3: Purchasing: ISO 9001 requires that
purchased products conform to their specified requirements. In the CMM, this is addressed in software subcontract
management.
4: Training: ISO 9001 requires that
training needs to be identified and that training be provided.
Records of training are maintained.
In
CMM, specified trainings are identified in the training and orientation
practices in the ability to perform common feature.
5: Internal quality audit: ISO9001 requires that the audits be planned and performed. The results of audits are communicated to management, and any deficiencies found are corrected.
Specific audits in the CMM are called out in the auditing
practices of the verifying implementation common feature.
Related Topics
Privacy Policy, Terms and Conditions, DMCA Policy and Compliant
Copyright © 2018-2024 BrainKart.com; All Rights Reserved. Developed by Therithal info, Chennai.