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What is CMM

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What is CMM?

CMM (Capability Maturity Model) is a model of process maturity for software development - an evolutionary model of the progress of a company’s abilities to develop software.

In November 1986, the American Software Engineering Institute (SEI) in cooperation with Mitre Corporation created the Capability Maturity Model for Software.

Development of this model was necessary so that the U.S. federal government could objectively evaluate software providers and their abilities to manage large projects.

Many companies had been completing their projects with significant overruns in schedule and budget. The development and application of CMM helps to solve this problem.

The key concept of the standard is organizational maturity. A mature organization has clearly defined procedures for software development and project management. These procedures are adjusted and perfected as required.

In any software development company there are standards for processes of development, testing, and software application; and rules for appearance of final program code, components, interfaces, etc.

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The CMM model defines five levels of organizational maturity:

Initial level is a basis for comparison with the next levels. In an organization at the initial level, conditions are not stable for the development of quality software. The results of any project depend totally on the manager’s personal approach and the programmers’ experience, meaning the success of a particular project can be repeated only if the same managers and programmers are assigned to the next project. In addition, if managers or programmers leave the company, the quality of produced software will sharply decrease. In many cases, the development process comes down to writing code with minimal testing.

Repeatable level. At this level, project management technologies have been introduced in a company. That project planning and management is based on accumulated experience and there are standards for produced software (these standards are documented) and there is a special quality management group. At critical times, the process tends to roll back to the initial level.

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