IntroductionofSixSigma(ppt 47)

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1、IntroductionofSixSigmaBeltonGroupRexWongScopeofModuleWhatisSixSigmaWhytheneedforSixSigmaHowtoapplySixSigmaWhatisSixSigma?SixSigmaisacomprehensiveandflexiblesystemforachieving,sustainingandmaximizingbusinesssuccess.Itisuniquelydrivenbycloseunderstandingofcustomerneeds,disciplineduseoffacts,dataand

2、statisticalanalysis,withdiligentattentiontomanaging,improvingandreinventingbusinessprocesses.PeterSPande,RobertPNeuman,RolandRCavanaghTheSixSigmaWay(McGrawHill,©2000)SixSigmaIsThreeThingsAstatisticalmeasurementAbusinessstrategyAphilosophy1)SixSigma—AStatisticalMeasurementItprovidesaquantitativepe

3、rformanceassessmentofourproducts,servicesandprocesses.Itallowsforcomparisonsagainstothersimilarordissimilarproducts,servicesandprocesses.Itprovidesfeedbackonhowfaraheadorbehindweare.SixSigmahelpstoestablishourcourseandtogaugeourpaceintheracefortotalcustomersatisfaction.SixSigma–AbusinessstrategyI

4、mprovedSigma-RatingofProcessImprovedProductorProcessQualityReducedCostofOperationsGreaterCustomerSatisfactionCostOfPoorQuality(COPQ)TraditionalQualityCosts(tangible)LostOpportunityHiddenFactoryAdditionalCostsofPoorQuality(intangible)(Difficultorimpossibletomeasure)COPQisafunctionofSigmaCapability

5、InspectionWarrantyScrapReworkRejectsMoreSetupsExpeditingCostsLostsalesLateDeliveryLostCustomerLoyaltyExcessInventoryLongCycle-TimesEngineeringChangeOrdersCostOfPoorQuality(COPQ)ProfitTotalCosttoManufactureandDeliverProductsProfitTheoreticalCostsCostofPoorQualityCOPQPriceErosionTheoreticalCostsCos

6、tofPoorQualityCOPQProfitTheoreticalCostsCOPQ3)SixSigma–AphilosophySixSigmaisaboutworkingsmarter,notharder.DiscoverandneutralizeharmfulsourcesofvariationMistakesarereduced(oreliminated)ImprovedprocesscapabilitySigmaratinggoesupQualityBreakthroughTimeRejectRateHistoricalLevel(0)NaturalVariation

7、under0(±30)SpecialVariationOptimumLevel(1)NaturalVariationunder1(±31)WhyneedsofSixSigma?ThegoalofSixSigmaisnottoachievesixsigmalevelsofquality(i.e.3.4dpmo).6s=/DefectsSixSigmaisaboutimprovingprofitability;improved