a software engineering method, has been evaluated with CMM/CMMI (Nawrocki et al., 2002). For example, the XP requirements management approach, which relies on oral communication, was evaluated as not compliant with CMMI. CMMI can be appraised using two different approaches: staged and continuous. The staged approach yields appraisal results as one of five maturity levels. The continuous approach yields one of four capability levels. The differences in these approaches are felt only in the appraisal; the best practices are equivalent resulting in equivalent process improvement results. See also Capability Immaturity Model Capability Maturity Model Enterprise Architecture Assessment Framework LeanCMMI People Capability Maturity Model Software Engineering Process Group References External links Maturity models Software development process Standards Systems engineering Carnegie Mellon University software