七顆鉆石流程

17DiamondProcess

七顆鉆石流程2Whatisthe7DiamondProcess?

七顆鉆石的流程是什么？The7DiamondProcessisoneofmanytoolsthatcanbeusedintheproblemsolvingprocess.七顆鉆石流程是可以用來解決質(zhì)量問題的工具之一。Thistoolisusedtoinvestigatediscrepanciesdiscoveredbythefollowing:它可以用來調(diào)查以下方面發(fā)現(xiàn)的差異

GlobalCustomerAuditSystem(GCAS)全球顧客評(píng)審

YardWalkAudits生產(chǎn)線上巡檢

VerificationStations檢驗(yàn)工位3

Purposeofthe7DiamondProcess

7顆鉆石流程的目的

The7DiamondProcess

isastructuredwayofassessingourmanufacturingprocesstodeterminewhetherofnotithasfailedtomeetthequalitystandarddemandedbyourcustomers.7顆鉆石流程是一個(gè)構(gòu)建好的評(píng)價(jià)我們的制造流程是否滿足了顧客所要求的質(zhì)量標(biāo)準(zhǔn)的一個(gè)方法

47Diamond

Process流程Responsibility責(zé)任Production第一步

¨1Production第二步¨2Production第三步¨3Rel.Engineer/SQA/Supplier負(fù)責(zé)的SQDE工程師/供應(yīng)商

¨4CorrectProcess?正確的工藝CorrectTool?正確的工具CorrectPart?正確的零件PartsQuality?零件質(zhì)量Responsibility責(zé)任ProcessControlManagers工藝控制負(fù)責(zé)人¨5aIsEngineeringsupportrequired?是否需要工程方面的支持ProblemIdentifiedBeginInterrogation問題定義(開始調(diào)查)Responsibility責(zé)任QETPST(Lead)¨5bSMTRGM(Lead)¨6StatisticalEngineering(RedXStrategies)統(tǒng)計(jì)工程(紅-X方法)¨7WillProcessChangeResolve?工藝更改能解決問題嗎ProductChangeRequired?產(chǎn)品更改需要嗎？HardyPerennialorExtremelyComplexProblem非常復(fù)雜的問題SQA -SupplierQualityAssuranceQET -QualityEngineeringTeamPST -PlantSupportTeamSMT -SystemsManagementTeamRGM-ReliabilityGrowthManagement5ReviewofResponsibility

職責(zé)回顧

Diamonds1-4 Production&Reliability鉆石1-4生產(chǎn)&可靠性

Filter5a ProcessControlManager(PCM)5a過濾工藝控制負(fù)責(zé)人

Diamond5b-7 ProductEngineering鉆石5b-7產(chǎn)品工程6InsertSampleCountermeasureCardHere此處插入對(duì)策卡樣卡77DiamondProcessStages

流程的各步驟Stages1&2oftheprocessareusedtodetermineiftheProductionorganizationisrunningtheassemblyprocesstodesignintent.1、2步是用來確定生產(chǎn)部門運(yùn)行的裝配流程滿足設(shè)計(jì)內(nèi)容。

Theinitialinvestigation(Stage1)isdonewherethedefectwasidentified.最初的調(diào)查(第一步)應(yīng)在發(fā)現(xiàn)缺陷的地方開始Stage2isonlyusedwhentheinvestigationinStage1determinedthatthecauseoftheproblemwasfromanupstreamsource.第2步只能當(dāng)?shù)谝徊降恼{(diào)查,確定問題是來源其他方面時(shí),才可開始Iftheprocessisn’tbeingmanagedtodesignintent,thenitmustbecorrectedandvalidated,priortoaskingforEngineeringassistance.如果工藝沒有滿足設(shè)計(jì)內(nèi)容，當(dāng)需要工程方面的協(xié)助前，必須進(jìn)行糾正并要有效。Engineeringreferral(Stage3)occurswhenthemanufacturingprocessdoesmeetdesignintentandtheproblemstillexists.當(dāng)制造過程滿足設(shè)計(jì)內(nèi)容并且問題依然存在時(shí)，第3步開始。8¨1-CorrectProcess正確的過程

ArethecorrectBestPeoplePracticesheetsposted?是否有正確的操作指導(dǎo)文件？

AretheBestPeoplePracticesbeingfollowed?是否執(zhí)行操作文件？

IstheoperatorsKeyPointChartbeingfollowed?是否滿足關(guān)鍵操作點(diǎn)控制圖

Arethecorrectdocumentspostedontheoperationcertificationboard?是否在操作示板上有正確的文件

IsthejobbeingperformedtothePAD’s?是否按照PAD操作

Cananyofthesecausetheproblem?以下的問題有可能產(chǎn)生問題嗎？Stages1&2ProductionCorrects正確的生產(chǎn)Production¨2Production¨3Rel.Engineer/SQA/Supplier

¨4CorrectProcess?正確的工藝過程CorrectTool?正確的工具CorrectPart?正確的零件PartsQuality?零件的質(zhì)量8¨1-CorrectProcess正確的過程

Hasamandatorysequencebeenidentified?Isitbeingfollowed?是否強(qiáng)制的操作序列號(hào)已識(shí)別，是否執(zhí)行了

Isthejobbeingdonethesameonbothshifts?在各班次中操作工作是否一致

Doestheoperatorunderstandwhattheproductstandardsare?操作者是否理解產(chǎn)品標(biāo)準(zhǔn)

Isittheregularoperator?Hastherebeenalotofturnoveronthejob?是否為固定操作工？是否此操作有很多輪換人員

Hastheoperatorbeenproperlytrained?操作者是否正確培訓(xùn)過

Arethevisualaidscurrent?目前是否有目視化的輔助措施

Doestheoperatorunderstandthequalityoutcomesofher/hisjob?操作者是否知道他/她的崗位的產(chǎn)品的輸出質(zhì)量

Doestheoperatorknowhowtocommunicatewhenhe/shehasaproblem?操作者是否知道當(dāng)他/她的崗位出現(xiàn)質(zhì)量問題時(shí)如何傳遞溝通信息？Cananyofthesecausetheproblem?以下的問題有可能產(chǎn)生問題嗎？Stages1&2ProductionCorrects正確的生產(chǎn)Production¨2Production¨3Rel.Engineer/SQA/Supplier

¨4CorrectProcess?正確的工藝過程CorrectTool?正確的工具CorrectPart?正確的零件PartsQuality?零件質(zhì)量9

Arethecorrecttools&fixturesbeingused?(bothshifts)

是否使用正確的工具/夾具(各班次)

Arethetoolssettothespecifiedtorque?

工具是否設(shè)置成規(guī)定的扭矩

Aretheyproperlycalibrated?是否進(jìn)行適當(dāng)?shù)男?zhǔn)

Arebothshiftsusingthesametool?

是否各班次用同樣的工具

Arethebitsorsocketsworn?是否螺絲刀或套筒已磨損

Hasanextraairhosebeenattachedtothetool?

是否在工具上有多余的空氣管

IsthetooltiedtotheAndonsystem?工具是否與暗燈相連

HasthetoolbeenputonBypass?是否工具被旁路

Dothetools&fixtureshavemutilationprotection?是否工具/夾具有損毀保護(hù)

Hastheworkstationbeenerrorproofed?

工位是否有防錯(cuò)設(shè)施

Doestheworkstationlayoutallowtheoperatortoworkeffectively?

是否工位的布置適合操作者有效的工作

HasthePreventiveMaintenancebeendone?(checklog)

是否進(jìn)行了預(yù)防性維修(檢查表)

Aretoolsfunctioningcorrectly?

工具功能是否正確Stages1&2ProductionCorrectsProduction¨1Production¨3Rel.Engineer/SQA/Supplier

¨4CorrectProcess?正確的工藝過程CorrectTool?正確的工具CorrectPart?正確的零件PartsQuality?零件質(zhì)量¨2-CorrectTool正確的工具Cananyofthesecausetheproblem?10IsthePartsRoutingcurrent?零件的的路徑徑是否否正確確Arethecorrectpartnumbersidentifiedonthematerialracks?是否在料架上上標(biāo)識(shí)有正確確的零件號(hào)Arepartsstockedincorrectlocationontherack?在料架上擺放放位置是否正正確Dothepartnumbersontheboxesagreewiththerack?包裝盒上零件件號(hào)與料架上上是否一致Areallpullcardsavailable?拉動(dòng)卡是否有有效HasaPAAbeenissuedchangingpartusage?是否有零件用用途改變的PAAHasthePAAexpired?PAA是否過期Iserrorproofingneeded?是否需要防錯(cuò)錯(cuò)措施Isexistingerrorproofingdeviceworkingcorrectly?是否已有的防防錯(cuò)設(shè)備運(yùn)行行正確Stages1&2Production¨1Rel.Engineer/SQA/Supplier

¨4CorrectProcess?正確的工藝過程ProductionCorrectsCorrectPart?正確的零件Production¨2CorrectTool?正確的工具PartsQuality?零件質(zhì)量¨3-CorrectPart正確的零件Cananyofthesecausetheproblem?11TheReliabilityEngineerisresponsiblefordeterminingifpartshavechangedandoverallpartquality.Ifpartsquality(outofspecification)isdeterminedtobetheproblem’’srootcause,thentheREwill:writePR&R’’stonotifythesupplierthatthereisaproblem.可靠性工程師師確定零件是是否更改過并并對(duì)產(chǎn)品全部部質(zhì)量負(fù)責(zé)。。如果由于零零件質(zhì)量(超超差)是根本本原因，那么么應(yīng)：填寫PR&R通知供應(yīng)商：：workwithSupplierQualitytovalidatethecorrections.同供應(yīng)商共同同確認(rèn)糾正措措施setupsortingoperationsandproductionwillsupportsortingofmaterialattheoperation.采取篩選措施施，制造應(yīng)支支持在工位上上的物料篩選選workwithGroupLeaderstovalidatecountermeasuresorcontainment.同工段長共同同確認(rèn)對(duì)策和和遏制措施Ifpartvariationwithinspecificationistherootcause,thentheREwill:如果果確確認(rèn)認(rèn)零零件件在在規(guī)規(guī)范范內(nèi)內(nèi)，，那那么么RE應(yīng)：：workwiththesupplierandSQAtomovethepartbacktotheneededrangewithinthespecification同供供應(yīng)應(yīng)商商共共同同工工作作，，SQA將零件返返回到規(guī)規(guī)范內(nèi)需需要的范范圍workwithQualityEngineeringtodetermineifanEngineeringChangeisrequiredtoprovideirreversiblecorrectiveaction同質(zhì)量工工程師合合作，確確定是否否需要工工程更改改這種不不能消除除的糾正正措施Stages1&2Production¨1CorrectProcess?正確的工工藝流程程Rel.Engineer/SQA/SupplierPartsQuality?零件質(zhì)量量Production¨2CorrectTool?正確的工工具CorrectPart?正確的零零件Production¨3¨4-PartQuality零件質(zhì)量量12Diamonds1-4inReview鉆石1-4步回顧Diamonds1-4areforevaluatingthestabilityoftheprocess.1-4步用來評(píng)評(píng)價(jià)工藝藝過程的的穩(wěn)定性性O(shè)nceaproblemhasbeenidentified,theautomaticresponsemustbetoimmediatelystepthrudiamonds1-4.當(dāng)問題被被定義后后，1-4步的的負(fù)責(zé)人人員就自自動(dòng)確定定下來Itmustbecomeinherentinourproblemsolvingthoughtprocess.這些步驟驟是問題題解決過過程中固固定的流流程Responsibility職責(zé)ProcessControlManagers過程控制制負(fù)責(zé)人人¨5aIsEngineeringsupportrequired?是否需要工程的支持13¨5a-EngineeringFilter5a-工程過濾濾IsEngineeringsupportrequired?需要工程程方面的的支持嗎嗎5aisasteptofilteroutandresolveless-complexissuesbeforeseekinghelpfromQualityEngineering.5a是一步過過濾出并并將不復(fù)復(fù)雜的問問題在尋尋求質(zhì)量量工程幫幫助前解解決TheProcessControlManagerisresponsibleforconductinginitialstudiespriortoescalatingtheissue.過程控制制負(fù)責(zé)人人負(fù)責(zé)在在提升問問題前指指導(dǎo)初始始研究Thesestudiesmayincludebutarenotlimitedto:這些研究究應(yīng)包括括但不局局限在:ProblemDefinitionTree問題定義義樹5Whys5個(gè)為什么么StatisticalProcessControl統(tǒng)計(jì)過程程控制DesignofExperiment(DOE)試驗(yàn)設(shè)計(jì)計(jì)ShaininTechniques(quick&dirty)技術(shù)(快快速&臟臟)Ifaftertheinitialstudiesthecauseofvariationhasnotbeendetermined,theissueisreferredtoProductEngineering.TheproblemdefinitiontreeistheminimumexitcriteriatogofromDiamond5ato5b.如果經(jīng)過過初始研研究，變變差的產(chǎn)產(chǎn)生原因因還沒有有確定，，就需要要產(chǎn)品工工程的支支持。問問題定義義樹是從從5a-5b的基本方方法。QualityEngineering質(zhì)量工程5aProblemSolvingToolbox問題解決工具箱Projecttitle:PooradjustmentofRRdoorpanel805-830Leader:PedroArandaAlfaroSponsor:JuanCarlosLiceaArea:VAETCoach:LeonardoCháávezsalcedoInitialdate:oct-04-2002Finaldate:oct-29-2002Problemdescription:ThismonthitwasreportedbytheshippinglotinUSAaproblemofqualityexistedinthe805/830vehicles.TheproblemisthepooradjustmentinRRdoorpanel.Projectsstatement:FindandimprovetheRedXthatproducethepooradjustmentintheRRdoorpanelforthemodel805/830inSilaoAssemblyplant.Strategy:Weinitiatedthisprojectusingthemodeltomodelstrategy,becausetherewasagoodcontrastandgoodleveragebasedonmulti-variseepag6.Measurementsystem:AsmeasurementsystemaForcegagewasused.ThismeasurementsystempassedtheisoplotwithDR=13.6,DM=1.0lbs,andDP=13.6lbs(seepage4)Cluegeneration:Stage1showsthattheRedXdoesn’tliveintheprocess.Thestage2showsthattheRedXlivesinthedoorpanel.Thepaircomparisonshowsthatthedoormoldingisthepartwiththebestcontrast.Statisticalconfirmation:OncewedetectedtheRedXcandidate,IdecidedtodoaBvsCsixpacktrial,inordertoconfirmthedoormoldingistheinfluencetomakethecustomersatisfaction.Thesixpackpassedwith95%ofconfidenceandendcountof6.Irreversiblecorrectiveaction:Tomodifiedtheflange1.5mminlengthtokeepabetterpositionandavoidthatthedoorpaneltakeoutofposition.Improvements:Reducewarrantycosttorepairthedoorpanelcausedbypoorfit(loose)andeliminatetheconditionin100%invehicles805/830models.Theamountofmoneyfromjul01tojul02was11,084.77USD.Lessonslearned:Welearnedthatisnecessarylookingotheralternativesusingotherstrategywhenisnotpossibleinvestmoneybutalwaysfocustoguaranteethecustomerenthusiasm,thereforethisprojectisanexampleofthis.ExecutiveSummary執(zhí)行總結(jié)項(xiàng)目題目：右后門板調(diào)調(diào)整不好(805/830車型)。。領(lǐng)導(dǎo)；PedroAdrandaAlfaro發(fā)起人：JuanCarlosLicea區(qū)域：VAET教練：LeonardoChavezsalcedo起使日：2002年10月4日截止日：2002年年10月29日問題描述：本月收到報(bào)告告，在美國有有關(guān)于門飾板板的質(zhì)量問題題，右后門飾板調(diào)調(diào)整不好。(805/830型)項(xiàng)目綜述：針對(duì)Lilao裝配廠805/830車車型的右后門門飾板，發(fā)現(xiàn)現(xiàn)并解決其配合不不好的問題。。策略：我們起初應(yīng)用用車型對(duì)車型型策略，因?yàn)闉槎嘬囍g有有很好的對(duì)比比度和平衡關(guān)關(guān)系。(見見見第6頁)測量系統(tǒng)：用測力計(jì)作為為測量系統(tǒng)。。這種測量系系統(tǒng)通過等量量圖。(DR=13.6,M=1.0lbs,P=13.6lbs見第4頁線索產(chǎn)生：階段1表明紅紅X不在過程中。。階段2表明明紅X產(chǎn)生在門飾板板處。成對(duì)比比較表明門型型是成對(duì)比較較點(diǎn)。統(tǒng)計(jì)確認(rèn)：一旦我們查到到了候選的紅紅X，我們決定做BvsC六組數(shù)據(jù)比較較，這是為了了確認(rèn)門型影影響客戶滿意意度。用6對(duì)對(duì)數(shù)據(jù)進(jìn)行比比較具有95%的可信度度和最大累加加值為6.不可撤銷的糾糾正措施：為使門邊緣加加長1.5mm以保證正確的的位置不偏離離。改進(jìn)措施：減少保修費(fèi)用用來修復(fù)由于于配合不好產(chǎn)產(chǎn)生的門飾板板問題，并且且100%消消除803/805車型型的缺陷。學(xué)到的經(jīng)驗(yàn)：我們學(xué)到了當(dāng)當(dāng)投資不會(huì)會(huì)太多的情況況下，用其它它策略以尋求求可選擇的方方法解決問題題。但始終要要關(guān)注顧客熱熱忱。此項(xiàng)目目便是一個(gè)這這樣的例子。。ProjectDefinitionTree/項(xiàng)目定義樹Problemcharacterization問題描述Warrantycondition/保修條件Theproblemispresentedonlyinthereardoor問題只是在后后側(cè)車門出現(xiàn)現(xiàn)BASED:DISTRIBUTONLOTCAMPAINGCURRENT:100%doorpanel805830modelsloose目前狀態(tài)：805/830型車門飾飾板100%松動(dòng)。GOAL:eliminate100%thepoorfit.目標(biāo)：100%消除不良良的配合Projectstatement項(xiàng)目綜述Needenergytoreleasethetrimdoorpanel需要用力才能能卸下門飾板板Customeriscallingtheprobleminbothsides客戶現(xiàn)在對(duì)兩兩側(cè)都在抱怨怨Efforttorelease(lbs)/釋放力(磅)Frequency頻率CURRENT現(xiàn)有DESIRED希望Solutiontree項(xiàng)目解決樹TARGET:Eliminatecondition100%目標(biāo)：100%消除除現(xiàn)有問題PASSEDISOPLOTDR=15.2SEEPAG4通過等量圖驗(yàn)驗(yàn)證DR=15.2參見第4頁P(yáng)ASSEDSTAGE1SOTHEREDXDOESN’TLIVEINTHEPROCESSSEEPAG#7.通過第一階段段驗(yàn)證，因此此紅X不在裝配過程程中，參見第第7頁。THECOMPONENTSEARCHSTAGE2SHOWSTHATTHEREDXDOESNOTLIVEINTHETRIMDOORPANELSOLIVESINTHERESTOFTHEDOORPANEL.SEEPAG#7./零部件分析階階段2顯示紅紅X不是由車門內(nèi)內(nèi)飾板造成的的,所以應(yīng)是是由車門板的的其余部分引引起的,見7頁.PAIRCOMPARISONSHOWSTHATTHEDOORPANELMOLDINGHASTHECHARACTERISTICTHATPRODUCETHEDIFFERENCESEEPAG9/配對(duì)對(duì)比顯示示車門飾板飾飾件有造成差差異的特征，，參見第9頁頁THISISTHEBESTSTRATEGYBASEDONMULTIVARISEEPAG5.這是基于多多重變換比比較得出的的最佳策略略，參見第第5頁。PASSEDBvsCWHEREITSHOWSTHATTHEDOORMOLDINGKEEPINPOSITIONTHEDOORPANELSEEPAG10,BUTWECHOICEOTHERCHARACTERISTICTHATKEEPINPOSITIONTHEDOORPANELANDWITOUTINVESTMONEYSEEPAG11&13.通過BC對(duì)比試驗(yàn)，，顯示車門門飾板飾件件能夠使車車門飾板保保持正確位位置，見第第10頁。。但是我們們選擇能夠夠保證車門門飾板位置置并且不用用增加投資資的其它特特性，參見見第11和和13頁。。Frequency頻率GREENYRUNCHARTSEEPAG17/綠Y字流程圖參參見第17頁。DESIRED希望CURRENT現(xiàn)有BASED:DISTRIBUTONLOTCAMPAINGEfforttorelease(lbs)釋放力(磅磅)DM=1.0lbsDP=13.6lbsDR=13.6PassedIsoplotIsoplotAForcegagewasusedasthemeasurementsystem拉力計(jì)作為為測量工具具通過ISOPLOT評(píng)估POINTTOPOINTTherearenocontrastinthisstrategytherearenodifference.Thereisagoodcontrastbuttheleverageisnotenoughbecausewedon’thavetoolstomeasureit.Thisstrategyprovidegoodcontrastandthebestleveragebasedonmulti-varichartseepag6TherearenocontrastthroughthetimeStrategydiagramPLANTTOPLANTMODELTOMODELTRUCKTOTRUCKSIDETOSIDESAMEPANELSAMEPLANTSAMEMODELSAMETRUCKThereisacontrastbetweentrucktotruckandgoodleveragebutthecontrastisnotenoughbasedonmulti-variseepage6.EVENTTOEVENTSAMEPOINTTherearenocontrastinthisstrategytherearenodifferenceeventtoevent.策略略圖圖事件件對(duì)事件件同一一個(gè)個(gè)點(diǎn)點(diǎn)點(diǎn)對(duì)點(diǎn)同一一塊塊扳扳同一一側(cè)側(cè)對(duì)同一一側(cè)側(cè)同一一臺(tái)臺(tái)車車車對(duì)車同一一型型號(hào)號(hào)型號(hào)號(hào)對(duì)型號(hào)號(hào)同一一個(gè)個(gè)工工廠廠工廠廠對(duì)工廠廠在這這個(gè)個(gè)對(duì)對(duì)比比中中,無無差差異異.在這這個(gè)個(gè)對(duì)對(duì)比比中中,無無差差異異.在這這個(gè)個(gè)對(duì)對(duì)比比中中,有有差差異異.但但無無測測量量工工具具.在車車與與車車的的對(duì)對(duì)比比中中,有有差差異異.但但不不能能滿滿足足MULTI-VARI的要要求求..在這這個(gè)個(gè)對(duì)對(duì)比比中中,有有差差異異.且且能能滿滿足足MULTI-VARI的要要求求..在這這個(gè)個(gè)對(duì)對(duì)比比中中,無無差差異異.Multi-variNOTE:Thisgraphicshowsthatthebestcontrastismodeltomodel.SideTruckEFFORTTOTAKEOFF(lbs)RLRLRLRLRLRLRLRLRLRLRLRLRLRLRLRLRLRLRLRLRLRLRLRLRLRLRLRLRLRLRLCustomersatisfactionlimitBOBWOWModelCCCCAAAAAAAAAAASSSSSSSSSSSSSSSSNOTE:S:SUBURBAN830MODELA:AVALANCHE805MODELC:CADILLAC806MODEL注:S\A\C三種車型最好最壞顧客的滿意底底線注:此圖顯示示出在型號(hào)與與型號(hào)的對(duì)比比中有最大的的差異.松脫力(磅)ComponentsearchNOTE:ThisgraphicshowsthattheRedXsuspectdoesnotliveintheprocessbecauseitpassedthestage#1.Thestage2showsthattheRedXsuspectdoesnotliveinthesealwindow.SotheRedXsuspectlivesinthemoldingdoorpanel.Effort(lbs)BOBWOWSTAGE1STAGE2第一階段第二階段最好最壞原狀態(tài)第一次拆裝第二次拆裝第三次拆裝門窗密封條門飾板門飾板飾條鉸鏈注:這個(gè)圖顯顯示因?yàn)橥ㄟ^過了第一階段段的試驗(yàn),所所以REDX不是由操作造造成.第二階段的試試驗(yàn)顯示門窗窗密封條不是是REDX,門飾板飾條是是REDX要素查找規(guī)則Rule1.TherearecompleteseparationbetweentheBOBandWOWvalues.將最好和最壞壞的值完全分分開規(guī)則Rule2.DY>V1R設(shè)Where:R=RBOB+RWOW2那么thenRBOB=1.9RWOW=1.2R=1.9+1.2=3.1=1.55.22DY=YBOB-YWOW=46.8-8.1=38.7如果ifDY>V1R那么then38.7>(0.89)(1.55)所以so38.7>1.38所以滿足規(guī)則則1和規(guī)則2的要求sopassedRule1andRule2通過問題為每每個(gè)單元設(shè)定定判定極限Setdecisionlimitsforeachunitbyusingthequestions:DLBOB=YBOB+V2RDLWOW=YWOW+V2R那么Thenudl=48.83DLBOB=46.8+1.31(1.55)=ldl=44.77udl=10.13DLWOW=8.1+1.31(1.55)=ldl=6.07結(jié)果Results~~~~~~~PairedComparison備注NOTE:WeconsiderthatthedoorpanelmoldingistheRedXcandidateinthepaircomparisonbecauseistheonlydifferencebetweenpaneltopanel.In805/830vs806models.我們認(rèn)為門板板裝飾件是可可能的RedX,因?yàn)樵谠谲囆托?05/830和和車車型806對(duì)比比后只只有門門板有有差異異。WOWBOBDOORMOLDINGREDXCANDIDATEPassedBvsCwith95%ofconfidencethatthemoldingdoorpanelistheRedXwithcompleteseparationandendcountof6.在完完全分分離，，Endcount為5的的情況況下，，以以95%的的置信信度通通過BvS表明門板板裝飾件件是RedXBvsCSixpackB=有門飾件件的車Vehicleswithdoormolding.C=沒有飾件件的車Vehicleswithoutdoormolding.Req:置信度confidence=95%OnceconfirmedthattheREDXislivinginthedoorpanelmolding,wedecidedtochangeourstrategyfrom““modeltomodel”to““trucktotruck”becausethedoorpanelmoldingisuniqueforCadillacmodels.Inotherwords,findonecharacteristicinthesamedoorpanel805/830modelthatmakesthedifference,becausetherearesomedoorpanelsthatrequirealmost20lbstopulledoutofitpositionfromthedoorandthereareotherswithlessthan10lbstopulledoutofitposition;Thecustomerenthusiasmlimitis18lbs.thisisenoughtokeepthedoorpanelinpositionatlowcost.一旦確定定RedX為門外板板裝飾件件，我們們決定改改變策略略，從從車型到到車型變變到卡車車到卡車車，因?yàn)闉殚T外板板裝飾件件對(duì)Cadillac車型來說說是唯一一的。換換句話說說，，同同樣的門門板裝在在805/830車車型上卻卻產(chǎn)生了了差異，，原因是是一些門門板從門門上拽出出需要20磅的的力，二二另一些些只需要要小于10磅的的力;顧顧客的的要求是是18磅磅，這已已經(jīng)足夠夠保證門門板以較較低的成成本固定定到相應(yīng)應(yīng)的位置置。BOBWOWBIGCONTACTAREASMALLCONTACTAREA大間隙BIGGAP小間隙SMALLGAP門邊緣DOORFLANGE門邊緣DOORFLANGEThemaincharacteristicthatcausedifferencebetweenthedoorpanels805/830modelisth