Differences between Capability Maturity Model(CMM) and Capability Maturity Model Integration(CMMI)

Capability Maturity Model (CMM)

The Capability Maturity Model for Software (CMM) is a framework that describes the key elements of an effective software process. There are CMMs for non software processes as well, such as Business Process Management (BPM).
- The CMM describes an evolutionary improvement path from an ad hoc, immature process to a mature, disciplined process.
- The CMM covers practices for planning, engineering, and managing software development and maintenance.
- When followed, these key practices improve the ability of organizations to meet goals for cost, schedule, functionality, and product quality.
- The CMM establishes a yardstick against which it is possible to judge, in a repeatable way, the maturity of an organization's software process and compare it to the state of the practice of the industry.
- The CMM can also be used by an organization to plan improvements to its software process.
- It also reflects the needs of individuals performing software process, improvement, software process assessments, or software capability evaluations; is documented; and is publicly available.

Capability Maturity Model Integration (CMMI)
- CMMI is a process improvement approach that provides organizations with the essential elements of effective processes.
- It can be used to guide process improvement across a project, a division, or an entire organization.
- CMMI helps integrate traditionally separate organizational functions, set process improvement goals and priorities, provide guidance for quality processes, and provide a point of reference for appraising current processes.