Lean and Six Sigma(PPT 32)9694.pptx
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1、Lean and Six SigmaWDHIMSSMay 5th,2005Presented by:Tanner Holst,Systems&Process Consultant,Franciscan Skemp Healthcare,LaCrosse,WIAgendanFocus on Six SigmaDefinition,use of data,roles,six sigma road mapnFocus on LeanDefinition,The House of LeannLean Six SigmanQuestionsPart I:Six SigmaSix Sigma Define
2、dnSix Sigma is a customer-focused,well defined problem solving methodology supported by a handful of analytical tools with a goal to reduce variationnKey is:Customer-focusednCustomer is always the“next step”in the flow of worknInternal customers have to be served well for external customers to be se
3、rved wellQuality Initiatives-Where does lean/six sigma fit?nTQM Total Quality ManagementnCQI Continuous Quality ImprovementnJIT Just in TimenMBO Manage by ObjectivesnMBWA Manage by walking aroundnRightsizingnPDSA Plan Do Study ActnLean and Six Sigma all of the above+Focus on Six Sigma ApproachnUses
4、statistics solely as tools for interpreting and clarifying data rely on the factsnRequires not just statistics,but changes in the culture of the organizationnRequires commitment of managementnRequires a tolerance for questioning sacred company beliefsnOutside in thinking,look at customers perspectiv
5、e,not oursWhat is sigma?nThe sigma value indicates how often defects are likely to occurnAccording to Motorola,a performance level of six sigma equates to 3.4 defects per million opportunities(4.5)nAs the sigma level increases,cost and cycle time go down while customer satisfaction goes upExample of
6、 ObjectivenKey objective is to reduce variability butIf you are making parachutes and find that on average 90%+/-2%open,changing that to 90%+/-1%wont help customer satisfactionnFirst goal:Must be on target Process must be in controlnPrecision versus AccuracyControl Chart:Precision vs.AccuracyAccurat
7、e but not precise:Acceptable ProjectPrecision and AccuracyTraditional vs.6 Sigma qualitynTraditional 99.73 percent(3 sigma)yields54,000 incorrect drug prescriptions per year40,500 newborn babies dropped each yearnSix sigma quality(99.9996%)yieldsOne incorrect drug prescription every 25 years3 newbor
8、n babies dropped each centuryData:driving force behind six sigmanLevels of dataIntuition/gut feelingQualitative brainstorming toolsQuantitative brainstorming toolsBasic chartsBasic statisticsInferential statisticsSix sigma Project Milestoney=f(x)Determine key variablesY=outputs,effects,symptoms,depe
9、ndentX=inputs,causes,control,independentSix Sigma RoadmapnMajor Steps in process(DMAIC)Recognize(executives)Define(Champions,Finance,MBB,BB)Measure(SMEs,BB,GB,TM)Analyze(SMEs,BB,GB,TM)Improve(SMEs,BB,GB,TM)Implement(SMEs,BB,GB,TM)Control(SMEs,BB,GB,TM)Realize(Finance,SMEs)Six Sigma ToolsnDefineProce
10、ss AnalysisFlow ChartingCheck SheetsFishbonePareto Analysis(few important/many trivial)Cause/Effect diagramsFailure Mode Effects AnalysisnMeasureProcess Capability%non-conformingCapability IndicesMeasurement SystemsCost of QualityDetectionFailureControl ChartsCommon vs.special cause variationTools c
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