吴立信-Six Sigma复习进程.ppt

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1、吴立信-SixSigmaOverview-FourQualityGurusHistoricallycompanieshavefocusedonqualityissuesforcustomersatisfactionPriortosixsigmatherewerefourkeyqualitygurusthatmostcompanies’qualityprogramsfollowedDemingJuranCrosbyTaguchi2DemingDemingtaught:Importanceofund

2、erstandingvariationinworkprocessesRoleofmanagementinleadingforqualityApplicationofstatisticsPlan-Do-Check-Act3Deming’sContributiontoProfitabilityEXTERNALINTERNALCUSTOMERSATISFACTIONMARKETSHAREPROFITPRODUCTIVITYQUALITY-Betterproducts&services-Improved

3、processes-CompetewithvaluePRICE-CompetewithPrice-Decreasedcycletime-Eliminateset-uptimesCOST-OpportunityforprofitPRODUCTQUALITYPROCESSQUALITY-Reducerework-Eliminatein-processinspection-Reducescrap-Increaseproductlife-EliminateincomingtestingPlanDoChe

4、ckAct4JuranJurantaught:BreakthroughperformanceParetoeffectImportanceofmanagementprinciplesQualitybydesignandplanning5Juran’sContributionPlanningCostofPoorQuality(Percentofoperatingcosts)ProductionBeginsOriginalzoneofprocesscontrolNewzoneofprocesscont

5、rol020400ControlTimeImprovementLessonsLearnedSporadicspikefromobservedproblemChronicWaste(anopportunityforimprovement)ControlSpecialcausevariationCommoncausevariation6CrosbyCrosbytaught:CustomerrequirementisperformancestandardQualitymaturityisajourne

6、yPreventiveactionasbasicapproach7TaguchiTaguchitaught:CostofpoorqualityislosstosocietyasawholeRobustqualityisdesignedforconsistentproductionDesigncontrolismoreimportantthanproductioncontrol8Taguchi’sContributionLowerSpecificationLimitUpperSpecificati

7、onLimitNominalValueRegionofCustomerComplaintsRegionofCustomerComplaintsRegionofQuestionablePerformanceRegionofQuestionablePerformanceRegionofSpecifiedPerformanceMeanLowerControlLimitUpperControlLimitRegionofDesiredPerformanceCost9WhatAretheLimitstoIm

8、provement?2Sigma3Sigma4Sigma5Sigma6SigmaBasicQualityToolsStatisticalToolsDesignforSixSigma(DFSS)BasicToolsWallDesignWallCleanSheet10ChallengeinthemillenniumQuestionconfrontingbusinessleadersandmanagers:Itisnot:“Howdowesucceed?”It’s:“Howdowestaysucces