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Tollgate - The Six Sigma DMAIC problem solving methodology is accomplished in five phases, or steps: Define, Measure, Analyze, Improve and Control. Between each phase or step many companies employ a "tollgate" to control the process. Only when the person leading the project has satisfactorily accomplished the previous phase may they pass the tollgate and move to the next phase. Tollgates are usually reviewed by a higher authority, such as the Master Black Belt for a Black Belt, or a Business Quality_ Council.
[Category=Data Quality ]
Source: iSixSigma, 28 February 2011 10:19:24, https:web.archive.org/web/20111109014246/http:www.isixsigma.com/index.php?option=com_glossary
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