Journal of the Korea Safety Management & Science (대한안전경영과학회지)

Korea Safety Management & Science (대한안전경영과학회)
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Calculation of Z Sigma Level, PCI, and PPI By SPC Charts in the Discrete Process

계수이산 공정에서 SPC 관리도에 의한 Z 시그마 수준과 PCI 및 PPI의 산출

  • Published : 2009.03.31
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Abstract

The research develops the calculation steps of Z sigma level, process capability index(PCI) and process performance index(PPI) applicable to the discrete process in the service industry. The paper presents three following topics used related process indexes according to the precision and accuray in the continuous process. The contents include diverse process indexs for nonconformities by SPC attribute control charts and bias coefficient. The same technique of the nonconformites is also used in the nonconforming units. The practical examples are provided to help easier understanding for users.

Keywords

References

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