The attribute capability of a process is the ability of that process to consistently give an attribute as a product or service, or give an attribute to a product or services. The attribute capability of a process is the ability of that process to give good, consistent attribute data.

This equation was cut out from the IASSC Reference Document.

 

The discrete capability of a process is the ability of that process to consistently give the desired result. The discrete capability of a process is the ability of that process to give good, consistent discrete data.