six sigma level ii training-5

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1、2003SixSigmaLevelIITraining(Improve-DOE)1TheFocusoftheImprovePhaseAtthispointinthesixsigmaprocess,weshouldhave：Anunderstandingofthemagnitudeandscopeoftheproblem，includingdefectsperunit(DPU)andcostofpoorquality(COPQ).Concretegoalsandadjective,includingprojectsDPUreductionsandcostsavings.Ay

2、variablewithareliablemeasurementsystem.AcapabilityanalysisofYwithanunderstandingofthenatureofprocessdeficiencies--isthereaproblemwithmean,variance,distributionshape,orsomecombinationofthethree?AshortlistofthepotentialXvariablesobtainedthroughanalysisofprocessdemographic,multi-varianalysis

3、,andothergraphicandstatistictechniques.Y=(X)WillNowBeginToFinalizeOurIdentificationOfCriticalXVariablesAndToBeginOurInvestigationsOftheNatureOf“F”,TheTransferFunctionInTheEquationAbove.ExperimentsAn“experiment”is…Anytestinginwhichtheinputsareeithercontrolledordirectlymanipulatedaccordingt

4、oaplan.A“designexperiment”is…Addsstructuretotheplanandaspecificmethodologytotheanalysisoftheresults.ExperimentationstrategyDefinetheproblem.Establishtheexperimentobjective.Selecttheoutput(response)variables.Selecttheinput(independent)variables.Choosethelevelsfortheinputvariables.Selectthe

5、experimentaldesign.Executetheexperimentanddatacollection.Analyzedata.Drawstatisticconclusions.Replicateorvalidatetheexperimentsresult.Drawpracticalsolution.implementthesolution.HierarchyofExperimentationOnefactoratatimeScreeningdesigns(fractional-Factorials)CharacterizationDesigns(Full-Fa

6、ctorials0)Optimizationdesigns(responsesurfacemethods)Aswemovedownthislist,theexperimentsgeneratemoreandmorepowerfuldata.Usually,thiscomesatthepriceoflargerexperimentaldesigns,moresamples,orincreasedcomplexity.Wemustdetermine,asapartofourplanningactivities,thequalityofinformationweneedtoim

7、proveourprocessorproduct.ProcessdesignproblemHowtolunchaballaspecificdistance?ExecutingtheExperimentStrategyDefinetheproblem--Setupanaccuratecatapult.Establishtheexperimentalobjective-Lunchtheball5meterswithminimalvariability.Selecttheoutput(response)variables-Dista