CMMI is a quality model developed by the Software Engineering Institute (SEI) of Carnegie Mellon University in 1987 to improve the software development process. CMM is recognized as the international standard for quality software development, and the de facto model for assessing an organization’s process capability.SEI introduced CMMI (Capability Maturity Model Integration) to increase the emphasis on how organizations integrate the software development process with other related elements in an organization. CMMI is also applicable to a broader scope – e.g. system integration, or IT operation.CMMI is becoming very fast the new requirement for firms looking for the quality model in process improvement.