To support those who use the continuous representation, all CMMI models reflect capability levels in their design and content.

The four capability levels, each a layer in the foundation for ongoing process improvement, are designated by the numbers 0 through 3:

0.      Incomplete

1.      Performed

2.      Managed

3.      Defined

A capability level for a process area is achieved when all of the generic goals are satisfied up to that level. The fact that capability levels 2 and 3 use the same terms as generic goals 2 and 3 is intentional because each of these generic goals and practices reflects the meaning of the capability levels of the goals and practices. (See the Generic Goals and Generic Practices section in Part Two for more information about generic goals and practices.) A short description of each capability level follows.