CMMI (Capability Maturity Model Integration) is a system of improving the efficiency and throughput of various business processes. Although computer software is involved, CMMI is not strictly just a computer program but a way of obtaining and evaluating data overall. It was developed in the 1990's by a consortium of government and business people working in conjunction with the Software Engineering Institute at Carnegie Mellon University. It is highly flexible across a range of uses including pinpointing and solving specific problems within an organization or simply monitoring a wide range of business processes for constant evaluation. Since CMMI by definition is a process, one does not really "achieve" CMMI. There is no set endpoint where you have completed the task. It is an ongoing process to monitor and constantly improve an organization's workflow.