質(zhì)量功能展開第四節(jié)

質(zhì)量功能展開第四節(jié)質(zhì)量功能展開將客戶的要求及愿望(即客戶的心聲)轉(zhuǎn)變?yōu)楫a(chǎn)品/服務(wù)的要求.識別并控制主要的制造過程參數(shù).產(chǎn)品特性、過程參數(shù)及控制變量的文檔關(guān)系。為什么需要使用QFD?更短的開發(fā)時間更少的工程更改提高客戶的滿意度更好的過程理解，取得更佳的執(zhí)行成效降低制造成本將最好的產(chǎn)品及服務(wù)提供與客戶改善組織內(nèi)溝通及分配任務(wù)執(zhí)行客戶要求及重要度保證措施關(guān)系矩陣市場競爭性評估措施重要度相互矩陣質(zhì)量功能展開的四大主要階段質(zhì)量屋階段1:產(chǎn)品規(guī)劃質(zhì)量屋階段2:零件配置質(zhì)量屋階段3:過程計劃質(zhì)量屋階段4:工藝/質(zhì)量控制矩陣產(chǎn)品及過程的規(guī)劃階段執(zhí)行成效測量CustWants質(zhì)量屋1質(zhì)量屋2PerfMeas產(chǎn)品特性質(zhì)量屋4控制方法ProcChar質(zhì)量屋3ProdChar過程特性客戶的心聲質(zhì)量功能展開質(zhì)量屋1產(chǎn)品規(guī)劃執(zhí)行成效測量客戶需求關(guān)系矩陣客戶需求–如掛墻墊如：沒有任何的污點/油漬；

適合一般市場要求；獨立式掛靠；穩(wěn)固于墻上；易于從墻上取下；容易打開；有防護；客戶需求：由客戶確定的一系列產(chǎn)品及服務(wù)的特性.房屋1–掛墻墊例子

PerformanceMeasures各項需求的重要度沒有任何的污點/油漬適合一般市場要求獨立式掛靠穩(wěn)固于墻上易于從墻上取下容易打開有防護客戶需求對各需求項進行重要度評分據(jù)客戶對各項要求的重要性，進行100分值范圍內(nèi)評分質(zhì)量屋1–掛墻墊

執(zhí)行成效測量需求項的重要度評分沒有任何的污點/油漬15適合一般市場要求25獨立式掛靠10穩(wěn)固于墻上20易于從墻上取下15容易打開5有防護10客戶需求執(zhí)行成效測量這是一種對客戶要求的產(chǎn)品執(zhí)行情況的技術(shù)評估，進行測量及控制，并不是實際的測試。掛墻墊的執(zhí)行成效測量沒有任何的污點/油漬

適合一般市場要求獨立式掛靠；穩(wěn)固于墻上；

以12類筆書寫，后檢查污漬情況以12類筆書寫，后檢查污漬情況檢測靠背板的硬度檢測穩(wěn)掛于墻上的時間及其粘住墻上的程度客戶要求執(zhí)行成效測量質(zhì)量屋1–掛墻墊執(zhí)行成效測量Importance以12類筆書寫，后檢查污漬情況檢測靠背板的硬度包裝測試易掉落程度檢測穩(wěn)掛于墻上的時間粘住墻上的程度沒有任何的污點/油漬15適合一般市場要求25獨立式掛靠10穩(wěn)固于墻上20易于從墻上取下15容易打開5有防護10客戶要求將客戶要求與執(zhí)行成效的測量結(jié)果聯(lián)系起來執(zhí)行成效的測量對客戶于各個要求項的滿意度的測算度如何？用如下的等級描述填寫矩陣。:1–星期,3–中等的,9–強度大,空白–即指沒有任何關(guān)質(zhì)量屋1–掛墻墊執(zhí)行成效測量Importance以12類筆書寫，后檢查污漬情況檢測靠背板的硬度包裝測試易掉落程度檢測穩(wěn)掛于墻上的時間粘住墻上的程度沒有任何的污點/油漬153適合一般市場要求259獨立式掛靠109穩(wěn)固于墻上20393易于從墻上取下159容易打開59有防護101客戶要求WeightedImportanceWeightedimportanceisacalculationusedtoprioritizetheinformationinaQFDmatrix=thesumoftheproductsoftheimportanceandrelationshiplevelsforeachcolumnintheQFDmatrix.InHouse1,theweightedimportancedetermineswhichPerformanceMeasuresarethegreatestpredictorsofcustomersatisfaction.WeightedImportanceforHouse1DemandedQualities(15x3)+(25x9)=270TheRoofoftheHouseComparestheeffectthatachangeinonePerformanceMeasurewouldhaveontheotherPerformanceMeasures.Doesnotinteractwithotherportionsofthehouse.Usesascaleof:strongpositive,positive,none,negative,andstrongnegative.RoofoftheHouse(House1)++strongpositive+positive-negative--strongnegative---Improvingpeelenergymayhaveastrongnegativeimpactonthetimethesheetsstickonawall.DesirabletodecreaseDesirabletoincreaseNopreferenceDirectionforimprovementChartA-1TheQualityTableCustomerDemands(What)QualityCharacteristics(How)ANPlanPBCDTotal

Total%

CompanynowCompetitorxCompetitory

PlanRateofimportanceCompanynowCompetitorxCompetitoryPlanRatioofimprovementSalespointAbsoluteweightDemandedWeightCorrelations:

9=strongcorrelation

3=somecorrelation

1=possiblecorrelationSalespoints=1.5,1.2,or1D=AxBxCB=PN4242692074439613219171EasytoholdDoesnotSmearPointlastsDoesnotroll10546533921911229413019995”3pgs3g70%5’5pgs2g80%4”2.5p4g60%5.5”6pgs2g80%34334113144545511.24.823545351.251.59.444333341.33141921.2100LengthTimebetweensharpeningLeaddustgeneratedHexagonalityQFDHouse2ProductQualificationProductCharacteristicsPerformanceMeasuresRelationshipMatrixProductCharacteristicsAttributesthatareobservableand/ormeasurableonthefinalproduct.Exles:thickness,color,weight,size,rawmaterialattributesProductCharacteristicsWhataretheProductCharacteristicsoftheEaselPad?HowmuchwillchangesinthosecharacteristicsaffectthePerformanceMeasures?Useascaleof1forweak,3formediumand9forstrongtoratetheeffects.House2-ProductQualificationMatrixPerformanceMeasuresProductCharacteristicsStrong9Medium3Weak1None0PerformanceMeasuresQFDHouse3ProcessPlanningProcessCharacteristicsProductCharacteristicsRelationshipMatrixProcessCharacteristicsStagesintheprocessthataffectthequality,composition,andcharacteristicsoftheproduct.Observablewhiletheprocessisrunning.

Exles:Adhesivecoatingmethod,coatingthickness,ovenorwebtemperature,viscosity,melttemperatureUnwindPrintedPaperReleaseCoatingDryingOvenPrimerCoatingDryingOvenAdhesiveCoatingDryingOvenJumboWind-up

ReleaseCoatPrimerAdhesiveCoatedJumboSheeting

Cutting

PaddingBackcardApplication

PackagingBacksheetPaddingCompoundBackcardEaselPadProcessFlowProcessCharacteristicsWhatarethestagesinthemanufacturingprocessforEaselPads?Whichproductcharacteristicsareimpactedbyeachstage?Usealevelof1,3,9toratetheimpactHouse3-ProcessPlanningMatrixProductCharacteristicsProcessCharacteristicsStrong9Medium3Weak1None0ProductCharacteristicsQFDHouse4ProcessControlPlanningControlMethodsProcessCharacteristicsRelationshipMatrixControlMethodsThevariablesinaprocessstepthatcanbeadjusted.Exle:linespeed,pumpspeed,oventemperature,nippressure.ControlMethodsInwhichkeystageoftheprocesswouldimprovementeffortshavethegreatestimpactonproductquality?

Whatadjustmentsareyouabletomakeinthisstage?

WhatistheimpactofeachadjustmentontheProductCharacteristics?ProcessCharacteristicsControlMethodsStrong9Medium3Weak1None0House4-ProcessCont