Standard CMMI Appraisal Method for Process Improvement
The Standard CMMI Appraisal Method for Process Improvement (SCAMPI) is the official Software Engineering Institute (SEI) method to provide benchmark-quality ratings relative to Capability Maturity Model Integration (CMMI) models. SCAMPI appraisals are used to identify strengths and weaknesses of current processes, reveal development/acquisition risks, and determine capability and maturity level ratings. They are mostly used either as part of a process improvement program or for rating prospective suppliers. The method defines the appraisal process as consisting of preparation; on-site activities; preliminary observations, findings, and ratings; final reporting; and follow-on activities.
Class A, B, and C Appraisals 
The suite of documents associated with a particular version of the CMMI includes a requirements specification called the Appraisal Requirements for CMMI (ARC), which specifies three levels of formality for appraisals: Class A, B, and C. Formal (Class A) SCAMPIs are conducted by SEI-authorized Lead Appraisers who use the SCAMPI A Method Definition Document (MDD)  to conduct the appraisals. Class A, the most formal, is required to achieve a rating (Level 1 (lowest) to Level 5 (highest)), using the Staged Representation, for public record or for response to U.S. Department of Defense requirements.
See also 
- Capability Maturity Model
- Capability Maturity Model Integration (newer)
- People Capability Maturity Model
- ISO 29110: Software Life Cycle Profiles and Guidelines for Very Small Entities (VSEs)
- Ahern, Dennis; Jim Armstrong, Aaron Clouse, Jack Ferguson, Will Hayes, Kenneth Nidiffer (2005-03-02). CMMI SCAMPI Distilled: Appraisals for Process Improvement. Addison-Wesley Professional. p. 240. ISBN 0-321-22876-6.
- SCAMPI Upgrade Team (April 2011). Appraisal Requirements for CMMI, Version 1.3 (ARC, V1.3) (PDF). Technical Report CMU/SEI-2011-TR-006. Software Engineering Institute. Retrieved 2011-04-01.
- SCAMPI Upgrade Team (March 2011). Standard CMMI Appraisal Method for Process Improvement(SCAMPI) A, Version 1.3: Method Definition Document (PDF). Handbook CMU/SEI-2011-HB-001. Software Engineering Institute. Retrieved 2011-03-01.