Common cause variation is fluctuation caused by unknown factors resulting in a steady but random distribution of output around the average of the data. It is a measure of the process potential, or how well the process can perform when special cause variation removed.
Common cause variability is a source of variation caused by unknown factors that result in a steady but random distribution of output around the average of the data. Common cause variation is a measure of the process's potential, or how well the process can perform when special cause variation is removed. Therefore, it is a measure of the process technology. Common cause variation is also called random variation, noise, noncontrollable variation, within-group variation, or inherent variation. Example: Many X's with a small impact.
Common cause variation is the remaining variation after removing the special causes (no normal causes) due to one or some of the 6M causes (Man power, Mother nature, Materials, Method, Measurements or Machine).
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© 2008 Six Sigma Terminology - This dictionary provides useful terms and definitions for Six Sigma understanding.
This dictionary provides useful terms and definitions for Six Sigma understanding.
