Control Chart

Control Chart - A graphical device for reporting process performance over time for monitoring process quality performance.

[Category=Data Quality ]

Source: Larry English, http://www.iaidq.com/main/glossary.shtml , 17-Jan-2009 13:06

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Control Chart - A chart with upper and lower control limits on which values of some statistical measure for a series of samples or subgroups are plotted. The chart frequently shows a central line to help detect a trend of plotted values toward either control limit.

[Category=Quality ]

Source: American Society for Quality, 14 September 2010 08:19:42, http://www.asq.org/glossary/

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Control Chart - graphical tool for monitoring changes that occur within a process, by distinguishing variation that is inherent in the process(common cause) from variation that yield a change to the process(special cause). This change may be a single point or a series of points in time - each is a signal that something is different from what was previously observed and measured.

[Category=Data Quality ]

Source: iSixSigma, 10 January 2011 10:16:29, https:web.archive.org/web/20111109014246/http:www.isixsigma.com/index.php?option=com_glossary

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Control Charts - Based on the statistical variation of any process - control charts help focus on stability of a process.

[Category=Quality ]

Source: The Quality Portal, 04 April 2011 07:54:59, http://thequalityportal.com/glossary/b.htm