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P-CMMi stands for Process – Capability Maturity Model Integration. It is a part of Capability Maturity Model (CMM). CMM is a process improvement methodology that depends on a process model. CMM was developed in the 1980s by the Software Engineering Institute (SEI). A process model is comprised of a set of best practices that are the features of the most effective processes. Each of the processes is judged against five levels of maturity: initial, repeatable, defined, quantitatively managed, and optimizing. These maturity levels are analyzed in specified process areas.

P-CMMi has 22 key process areas: Requirements Management, Project Monitoring and Control, Project Planning, Supplier Agreement Management, Configuration Management, Measurement and Analysis, Process and Product Quality Assurance, Product Integration, Requirements Development, Technical Solution, Validation, Verification, Organizational Process Definition, Organizational Process Focus, Process Organizational Training, Integrated Project Management, Integrated Supplier Management, Integrated Teaming, Risk Management, Decision Analysis and Resolution, Organizational Environment for Integration, Organizational Process Performance, Quantitative Project Management, Organizational Innovation and Deployment, and Causal Analysis and Resolution. Each of these process areas belong to a particular type in the software development framework. These types are policy, standard, process, procedure, and legal overview.

There are various representations of the process areas. When functional area is used to organize process area it is known as continuous representation. In staged representation organizational levels of maturity levels are used to organize process areas. In the initial maturity level the organization is not in a stable state as the process areas are ad hoc. In the repeatable maturity level some of the processes can be repeated successfully. In the defined maturity level the processes are standardized and improved over time. In the quantitatively managed level metrics are developed for the standardization of the process areas. In the optimizing level a stage has been reached where the process areas can be continually improved upon. The four disciplines benefited by P-CMMi are Systems Engineering (SE), Software Engineering (SW), Integrated Product and Process Development (IPPD), and Supplier Sourcing (SS).

The fundamental advantages of P-CMMi are integration of separate organizations, setting of priorities and goals for process improvement, provision of guidance for process quality improvement, and establish performance appraisal processes. From the business point of view time taken for system integration and testing is reduced considerably and principles of system engineering can be applied to software engineering. From the technical point of view systems design and development, risk management, and metrics of the processes gain consistency. Bosch Gasoline Systems saw that their on-time delivery was improved by 15% when P-CMMi was implemented. Rework was reduced by 10% and error was reduced by one order of magnitude. JP Morgan has invested $ 4 million in P-CMMi.

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