The tools and methods related to CMMI can be grouped into models, appraisal methods, and other useful documents:

CMMI Models

The following are model documents that can be used for process improvement. SEI-sanctioned translations of CMMI models into languages other than English are available.To see comparisons of CMMI models to other standards and models, see CMMI Mappings and Comparisons.

CMMI for Services, V1.2

Released in February 2009, this model is designed for service provider organizations that want to improve their ability to establish, manage, and deliver services.

CMMI for Acquisition, V1.2

Released in November 2007, this model is designed for acquisition organizations that want to improve their ability to acquire products and services.

CMMI for Development, V1.2

Released in August 2006, this model is designed for development organizations that want to improve their ability to develop products and services.

Appraisal Methods

More information about CMMI appraisal methods is available on the Appraisal Program webpages.

Other Documents

The following are a few of the CMMI-related documents you will find when you investigate one or more of the CMMI models or SCAMPI Method Definition Document:

CMMI for Acquisition Primer, Version 1.2

Released in May 2008, this document is an abbreviated version of the CMMI for Acquisition, V1.2 model. 

Understanding and Leveraging a Supplier's CMMI Efforts: A Guidebook for Acquirers

Released in March 2007, this document explains how to use CMMI appraisal ratings when evaluating suppliers.