CPK Class

Identify the reasons for using process capability studies and the limitations of these studies
Compare the applications of the three types of process capability studies (potential, short term and long term)
Determine whether a process is capable of meeting specified tolerances by using Cp and Cpk indexes
Estimate inherent variability in a process
Use calculations to determine whether a process is centered
Evaluate the potential and short term capability of a process

Welcome to Process Capability Studies. In this lesson, we will cover the following topics:
What is Process Capability?
Pittfalls of Process Capability Studies.
After completing this lesson, you should be able to:
Identify examples of real world situations in which a process capability study could be used
Identify the equations associated with process capability studies
Select the times during the life of a process where a process capability study can be run
Identify the appropriate equation for long term studies vs. single time studies
Select the common pitfalls or limitations associated with conducting a process capability study
Identify the factors that contribute to the limitations of process capability studies
Analyze a scenario that describes a process capability study.
"It is good management to reduce variation of any quality characteristic, whether this characteristic be in a state of control or not, and even when few or no defectives are being produced."
---- Dr. W. Edwards Deming

The intent of this lesson is to prepare an individual for developing a process capability study, analyzing the results from a process capability study and interpreting and using the results from a process capability study.

Welcome to What is Process Capability?

Process capability is generally thought of in terms of long term variation. That is, the total inherent variation that can be expected from a process over a long period of time, such as days, weeks or