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Process Capability

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Definition

An index that describes how well a process is performing (potential or actual) as compared to the upper and lower specification limits and the target specification. Cp, Cpk, Pp, Ppk, Sigma Level, Zst, Zlt and Zbench are all process capability indices.

See Also

Cp, Cpk, Pp, Ppk, Sigma Level, Zst, Zlt and Zbench

External Links

Capability Indexes: Mystery Solved by Gregory Roth II - http://www.asq.org/pub/sixsigma/past/vol4_issue3/ssfmv4i3roth.pdf Process Capability Indices from the StatSoft Online Textbook - http://www.statsoft.com/textbook/stprocan.html#pprocess Capability Analysis with Non-Normal Data by Keith M. Bower - http://www.keithbower.com/SQA/Non-Normal%20Capa%20-%20html.htm Process Capability Overview - American Society for Quality (ASQ) - http://www.asq.org/learn-about-quality/process-capability/overview/overview.html Process Capability: Understanding the Concept Help employees grasp the basics of process potential and performance by Jack Meagher, Quality Progress Magazine, January 2000. - http://www.asq.org/pub/qualityprogress/past/2000/0100/136one_good_idea_jan2000.html