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2 (the current version) is that common
features are no longer defined. Common features was a term used to categorize the
generic practices. Chapter 4 discusses this idea in more detail. Removing the term
common feature makes it easier for the user to understand the model structure.
Figure 3.2 shows the CMMI model components in the continuous representation.
The continuous representation has specific goals that organize specific practices
and generic goals that organize generic practices. Each specific and generic
practice corresponds to a capability level. Specific goals and specific practices apply
to individual process areas.
Model Structure for the Staged representation
The staged representation is organized by assigning process areas to maturity
levels.
Maturity Levels
A maturity level signifies the level of performance that can be expected from an
organization. For example, Maturity Level 1 organizations have ad hoc processes.
Maturity Level 2 organizations have a basic project management system in place.
There are five maturity levels.


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