Process

A Software process

Difference between Capability Level and Maturity Level

The Concept of capability level and maturity level

The ISO 15504 defines a capability level and CMMI defines both capability
level and maturity level. Now what exactly is the difference between capability
level and maturity level. I shall try to explain the difference using an
analogy.

 

Maturity levels in real life

Consider a person named M. When he was a child just one year old, just like
any other one year old, he could barely walk and speak. For our analogy purpose
we consider this stage as level one.

Now we look at person M again when he is a five year old child. At this stage he
can walk and run, and has basic reading and writing skills. This stage is level
two

When M is a 15 year old student, his reading and writing skills have developed
significantly, has knowledge in a variety of subjects and is developing his
analytical and problem solving skills. This is level three stage.

At 25 years of age, he has completed his professional education and has started
working in an organization. He is now applying his writing, speaking and
analytical skills for his professional purpose and now he also has the skills to
drive a vehicle. This stage is identified as level four for our analogy.

Years pass by and Mr.M now runs his own business. He has successfully applied
his planning and decision making skills to make his business venture a success.
We identify this stage as level five for our analogy.

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