Here’s a (likely referring to CM² (CMMI) SCAMPI R or an older SCAMPI/SCR appraisal framework). Since “CM²” is sometimes used to denote Configuration Management Maturity Model or a variant within older CMMI appraisal contexts, I’ll assume you mean the legacy SCAMPI (Standard CMMI Appraisal Method for Process Improvement) Class A, B, C appraisal method — often referenced as “CM² SCR” in some organizations’ older documentation. Write-up: Old Version CM² SCR (SCAMPI Legacy Appraisal Method) 1. Background The CM² SCR (old version) refers to an earlier generation of the SCAMPI appraisal method used to evaluate an organization’s adherence to CMMI (Capability Maturity Model Integration) practices. Before streamlined SCAMPI v1.3 and later v2.0, older SCAMPI versions (e.g., v1.2, v1.1) were sometimes internally branded as “CM² SCR” — standing for Capability Maturity Model² SCAMPI Review .