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SixSigmaChao-TonSuDepartmentofIndustrialEngineering&ManagementNationalChiaoTungUniversityChao-TonSu名詞Example假設品質特性符合Normaldistribution製程標準差:製程平均值:yT=100U=112L=88若則稱此製程具有6-sigmaqualitylevel。2,Ty若,則稱此製程具有4-sigmaqualitylevel。3,TyChao-TonSuSixSigmaquality首先由Motorola(1987)提出Motorola於1988年獲美國國家品質獎GE公司把發揚光大6Chao-TonSuSix-sigmaprocessconceptNormaldistributioncentered99.73%Y3636Spec.LimitPercentDefectivePPM68.2731730095.454550099.73270099.99376399.9999430.5799.99999980.0024532163Chao-TonSuSix-sigmaprocessconceptNormaldistributionshiftedY3636Spec.LimitPercentDefectivePPM30.2369770069.1330870093.326681099.3790621099.9767023399.9996603.44532165.15.15.1Chao-TonSuThebusinessprocessmodelY=f(X)Organization/ProcessXInputsXXX$YProductsYYChao-TonSuThebusinessprocessmodelYStrategicgoalCustomerrequirementProfitsCustomersatisfactionOverallbusinessefficiencyChao-TonSuThebusinessprocessmodelXEssentialactionstoachievestrategicgoalsQualityoftheworkdonebythebusinessKeyinfluencesoncustomersatisfactionProcessvariablessuchasstaffing,cycletime,amountoftechnology,etc.Qualityoftheinputstotheprocess(fromcustomerstosuppliers)Chao-TonSuAsimpleexampleEvaluateyour“process”forgettingtotheclassOntime:06:30p.m.Leaveyourplaceat06:10p.m.Thetargetcommutetime:20minutesChao-TonSuWhySixSigma?CustomerexpectationsTechnologicalchangeGlobalcompetitionMarketfragmentationWorkforcechangesChao-TonSuSixSigmaquality製造業服務業飛機失事0.5ppm?維護時間、服務時間收帳的時間Chao-TonSuBlackBeltTrainingSessionOneUnderstandingSixSigmaDevelopingthelanguageofSixSigmaandstatisticsHowtocomputeandapplybasicstatisticsHowtoestablishandbenchmarkprocesscapabilityChao-TonSuBlackBeltTrainingSessionTwoUnderstandingthetheoryofsamplingandhypothesistestingHowtoapplythekeystatisticaltoolsfortestinghypothesesUnderstandingtheelementsofsuccessfulapplicationsplanningHowtoapplyandmanagethebreakthroughstrategyHowtoidentifyandleveragedominantsourcesofvariationHowtoestablishrealisticperformancetolerancesChao-TonSuBlackBeltTrainingSessionThreeUnderstandingthebasicprincipleofexperimentationHowtodesignandexecutemultivariableexperimentsHowtointerpretandcommunicatetheresultsofanexperimentHowtoplanandexecuteavariablesearchstudyChao-TonSuBlackBeltTrainingSessionFourUnderstandingthebasicconceptsofprocesscontrolHowtoconstruct,use,andmaintainchartsforvariablesdataHowtoconstruct,use,andmaintainchartsforattributedataHowtoimplementandmaintainPrecontrolandPositrolPlansHowtoplanandimplementprocesscontrolsystemsChao-TonSuBlackBeltCertificationTobecomeaSixSigmaAcademyBreakthroughStrategyCertifiedBlackBelt,eachcandidatemustprovidetheSeniorMasterBlackBeltInstructorandhisorhermanagementleaderwithacompletedprojectandfinalreport,anddemonstratetheuseofSixSigmatoolsandtechniquesandthedollarsavingsandbenefitsachieved.Chao-TonSuSixSigmavisionGENuclearEnergyWewanttomakeourqualitysospecial,sovaluabletoourcustomers,soimportanttotheirsuccessthatourproductsbecometheironlyrealvalechoice.John.F.Welch,Jr.Chao-TonSuSixSigmaprojectsGENuclearEnergySixSigmaprojectscompleted/year60040020001996199719981999Chao-TonSuPhilosophyGENuclearEnergyEveryonewillalwayshaveanactive6project.Objective:Projectslinkto:CustomersatisfactionandGE/supplierQualityimprovementSixSigma:ChangingthegamewithqualityCasestudyGeneralElectricCompanyCompetitiverealitiesofthe‘90sFierce,globalcompetitionAcceleratingpaceofchangeQuality:increasingexpectationsCost:onlythelowcostmanufacturerswillsurviveSpeedtomarket:mustcutnewproductintroductiontimeby50%NewinitiativesQualitySpeedCostQuality&Sigma“Quality”isthedegreeofexcellenceofaproduct,processorservicefromthecustomer’sviewpoint.“Sigma”isameasureofthestatisticalvariationaboutanidealortargetvalue.Quality&SigmaAcceptablewindowor“Speclimits”Y262622QualityTargetDefects:308,000permillionopportunitiesQuality&SigmaAcceptablewindowor“Speclimits”Y6666QualityTargetDefects:3.4permillionopportunitiesWhyisSixSigmasomuchbetter?20,000lostarticlesofmailperhour200,000wrongdrugprescriptions/yearNoelectricityforalmost7hours/monthSevenarticleslostperhour68wrongprescriptions/yearOnehourwithoutelectricityevery34years99%Good(3.8)99.99966%Good(6)WhyisSixSigmasomuchbetter?Capability67,000dpmoHistoricalstandard3Capability6,200dpmoCurrentstandard4Capability3.4dpmoNewstandard6GE’squalitygoalGE1996:3.535,000dpmo96.5%goodresultsGE2000:63.4dpmo99.9997%goodresultsThechallengeisenormous,butsoistheopportunityWhydoesGEneedaqualityinitiative?Costofpoorquality30%25%15%10%5%0%20%%ofsalesDefectspermillion3.42336,21066,807308,537Sigma65432QualitylevelAve.UScompany;GE‘96World-classcompanyHowGEisdoingSixSigmaDecisiontohaveacompany-widequalityinitiativemadeatthetopSet“stretch”goal:6byyear2000Chose“SixSigma”approachandtoolsetCreatedSixSigmaorganizationineachbusinessAchievingGE’squalitygoal:TheSixSigmaapproachQuantitative,data-drivenmethodology,basedonstatistics,processunderstandingandprocesscontrolApplicabletomanufacturing,services
本文标题:SixSigma(推荐PPT57)
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