A model to optimize development processes. How. minutes. DeveloperIT governance frameworksIT strategy. Integrating the CMMI Capability Maturity Model is helpful. The Capability Maturity Model Integration, CMMI, is a successor to the CMM and is a more evolved model that integrates the best components of individual disciplines. The emphasis between the two differs by huge margins. Six Sigma uses statistical analysis and data graphics to detect manufacturing waste and defects, and to do the same, CMMI uses technical processes. The difference between CMM and CMMI. Key differences. The CMM, developed over the years by the Software Engineering Institute, provides organizations with a model for improving software development processes. It mainly focuses on software development and maintenance. CMMI, introduced in the 1990s, is growing. The fundamental difference between CMMI and ISO is conceptual. CMMI is a process model and ISO is an auditing standard. CMMI is a set of related best practices derived from industry leaders and. Main differences between CMMI and ASPICE CMMI is considered the successor of CMM while ASPICE is the first version of the International Organization for Standardization, known as ISO. CMMI is a model or program developed by Carnegie Mellon University as a project while some German automakers were creating CMMS use cases. The main functionality offered by a CMMS is the automation of the maintenance process. This includes order management, spare parts inventory control, maintenance planning based on historical information captured over the life of the asset, automated approvals and recalls, and team on duty,