The full name of CMMI is capability maturity model integration, that is, software capability maturity model integration (also known as software capability maturity integration model), which is an idea of the US Department of Defense. 1994 was founded by the U.S. Department of Defense and the Institute of Software Engineering under Carnegie Mellon University. SEISM) and National Defense Industry Association of America * * *, they plan to integrate all existing and upcoming capability maturity models into a framework. The prerequisite for applying for this certification is that the enterprise has a valid software enterprise certification certificate.

Its purpose is to help software enterprises manage and improve the software engineering process, enhance the ability of development and improvement, and thus develop high-quality software on time within the budget. It is based on the idea that as long as we concentrate on establishing an effective software engineering process infrastructure and constantly carry out management practice and process improvement, we can overcome difficulties in software development. CMMI provides a single integrated framework for improving various processes of an organization. The new integrated model framework eliminates the inconsistency between various models, reduces the duplication between models, increases transparency and understandability, and establishes an automatic and extensible framework. Therefore, the quality and efficiency of the organization can be improved as a whole. The main focus of CMMI is cost-effectiveness, clear focus, centralized process and flexibility.