Carnegie Mellon Rate of Maturity:
Capability Maturity Model Integration (CMMI) is a process level improvement training and appraisal program. Administered by the CMMI Institute, a subsidiary of ISACA, it was developed at Carnegie Mellon University (CMU). It is required by many U.S. Government contracts, especially in software development. CMU claims CMMI can be used to guide process improvement across a project, division, or an entire organization. CMMI defines the following maturity levels for processes: Initial, Managed, Defined, Quantitatively Managed, and Optimizing.
The final part to this maturity index is the culture of your enterprise. While all this is critical to defining a CMMI, culture may define or deter your ability to become fully mature surrounding the acceptable level of risk you as an organization is willing to take. The purpose of this is for the enterprise to measure the variable nature of risk within your organization which leads to more of a defined output towards considering your liability responsibility across your entire enterprise.