Difference Between CMM and CMMI

Difference Between CMM and CMMI

It’s the twenty-first century, and every business is attempting to outperform its competition. For businesses to be successful, they have to offer more than just a good product. They also have to make themselves stand out in the marketplace. This means that they need to offer something valuable. To compete, businesses must enlist the assistance of software and hardware services.

Behavior analytics software helps to measure the success and growth of your software business, helping you make the most of resources. CMMI and CMM are software maturity tools that help guide organizations in the field of software maturity. They provide insight into the current state that an organization is in, and provide guidance on how to improve its development practices.


CMM is a process-related framework for describing and measuring the quality of any product or service. Whereas CMMI is often used to determine the overall architecture for a process relating to software development. CMM is a popular product quality framework- it helps companies determine how their organizations’ products compare to similar ones on the market. While CMM can help define software development processes, CMMI focuses on overall architecture- most typically used when supporting software development projects.

The name of the software engineering institute assessment model is CMM (Software Engineering Institute’s Cost Model). It was created in 1990 and updated in 2009. The main reason a software testing agency uses this model is to assess the maturity of a development process, whether it’s done well or not. The Capability Maturity Model is a five-stage assessment of a company’s software practices. It was created by the Software Engineering Institute.

Capability Maturity Model Integration (CMMI) is the acronym for Capability Maturity Model Integration. It is the successor of CMM and a more advanced approach to software development. It allows your business to put their necessary skills in the hands of their developers who can implement features and updates based on what they need. This system contains five stages that are separate from the stages of the previous model.

What is CMM?

CMM was created in 1990 by the Software Engineering Institute as a behavioral model for assessing software maturity and determining how it should be developed further. As technology is continually changing, staying up to date with the latest developments is critical. If you want your company to stay competitive, then CMM can help. It was originally created to aid the United States military system, but it gradually made its way into the wider software industry as well.

CMM identifies a number of particular operations that the organization must carry out. This model assumes that if an organization meets all of the required success standards, it will be successful. This obstructs the true evaluation because progressing a task doesn’t guarantee a company’s success.

There are many different types of CMMs including software and people. This results in a disjointed process and the development and a rise in workload. The model is all about paperwork which consumes a lot of time.

The five stages of this model are listed below, including a short overview:

  • Defined (defines a company with a set of established procedures)
  • Repeat (defines a company that performs some of the same tasks over and over again)
  • Optimized (defines a company that employs quantitative methods to improve processes)
  • Initial (defines an inexperienced organization that lacks a process)
  • Managed (defines a company that is in charge of these processes)

What is CMMI?

The CMMI was created in 2006 as a replacement for the CMM. It’s designed to measure and improve the software development process. Carnegie Mellon University developed the CMMI to address some of the inherent problems in the CMM.

This system not only involves a series of steps but also considers their success rate and performance. It assesses how well a company performed even after the tasks were completed and makes recommendations for improvement. This model unifies all of CMM’s branches, resulting in a more inclusive approach.

The five steps of this model are as follows:

  • Managed (defines a company that has taken care of all of its needs and resources).
  • Initial (defines a company with inefficient and unreliable processes).
  • Quantitively managed (defines a company that meets all of the prior objectives).
  • Defined (defines a company with more intricate processes).
  • Optimized (aims to improve procedures on a regular basis).

Difference Between CMM and CMMI

  • CMM was created in 1990, whereas CMMI was created in 2006.
  • CMM is an acronym for Capability Maturity Model. CMMI, on the other hand, is an acronym for Capability Maturity Model Integration.
  • CMM was the very first significant software maturity assessment paradigm, with CMMI emerging as its successor to address CMM’s faults.
  • CMMI and CMM both feature five phases in their models, although the stages are not the same. CMM has the following features: Repeat, Initial, Managed, Defined, and Optimized. Managed, Initial, Defined, Optimized, and Quantitively Managed are all CMMI terms.
  • CMM assesses an organization’s overall performance by looking at particular tasks it completes. It pays little attention to the outcomes. While CMMI evaluates the levels of maturity, it measures the outcomes.


When a business gives targeted benefits to clients in an organized manner, it thrives on a larger scale. And, as technology advances, businesses must not only concentrate on their products and services but also on the means by which they are delivered. To accomplish so, you’ll need to create software that achieves the desired effects, which can be difficult. As a result, software maturity level assessment models were developed. CMMI and CMM are two examples of such models, both of which are widely used in the software industry.

CMM is an earlier paradigm that argues that in order to succeed, a company must accomplish certain defined responsibilities. However, it pays little attention to the evaluation and adjustment of actual results. CMMI, as the sequel to CMM, offers greater benefits. It not only includes chores but also focuses on the outcomes. While CMMI outperforms CMM in terms of software development, CMM is still useful for sequence-based activities.