What is the difference between SCAMPI Class A, B and C appraisals?
The differences boil down to the level of rigor, and, as reflection of the level of rigor, to what the outcomes can be. A SCAMPI class A is the appraisal most people think of when they think about CMMI appraisals. It is the only class of SCAMPI that can result in a level rating. And, as one might imagine, it requires the most rigor: an authorized lead appraiser, a minimum number (4) of people on the appraisal team collectively having explicit qualifications, very specific types of evidence, and certain minimum number (and type) of projects to characterize the process improvement of the organizational unit. SCAMPI classes B & C have much wider ranges in terms of team composition and evidence, as well as how they’re used and the level of rigor one wants to apply. Although a SCAMPI B can’t provide an offical (or otherwise) level rating, one can conduct a SCAMPI B with all the rigor and “fanfare” of a SCAMPI A. Many organizations use SCAMPI B as a means of preparing for a SCAMPI A and/or a
