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1、本科毕业设计(论文)外文翻译原文:SPCin‘non-product’applicationsIntroductionThetitleisunfortunate,butisbasedonawidely-usedphrase.Itsuggestsaseparationbetweenthebusinessofactualmanufactureandthemanysupportingfunctionsessentialtoproduction.Itfailstoreflectthephilosophyof‘t
2、otalquality’withoutwhichSPC,JIT,MRP,etc.,cannotyieldrealbenefitsincosts,productivityandattitudesaswellassimplyproductquality.Itmayperpetuatethe‘us-and-them’divisionsthatSPC,workingwithin(forexample)theDemingmanagementstyle,shoulderode.However,inprocess-s
3、upportandbusinessareas,thereoftenneedstobeachangeofemphasisinthetechniquesused,andhenceofrelevanttrainingmaterial.Forthisreasonalone,andnotbecausetheyaredistinctcompartments,itisusefultoreviewsomeofthestatisticalmethodsappropriateinthreemainspheresofacti
4、vity.Intheorderinwhichtheyoftendevelop,thesespheresofactivityareasfollows.ThepurposeofSPCistousecontrollimitstoimprovetheprocessbasedontheprocessbehavior.Whencontrollimitsareutilized,weonlyadjusttheprocesswhenthereisatruestatisticalsignal.Themostcommonst
5、rainofthecontrollimitsvirusoccurswhenmanagementsetscontrollimitsbasedontheiropinionofwheretheprocessshouldbeinsteadoftherealityoftheprocess.Thedoublelimitvisionvirussettlesintheopticnervecreatingavisiondistortionthatcausesonetoplacebothspecificationandco
6、ntrollimitsonacontrolchart.Symptomsofobsessivecompulsivedatagatheringincludeaddingchecksheetsornewdatacollectiontocombatanyproductionissue.Symptomsoftamperfeverincludeanunnaturaldesireto“improve”aprocessthatisincontrol.ProductsThisiswhereSPCoftenbegins,w
7、ith(typically)thex,Rorattributechart.Itmustleadontoproblemdiagnosisandateameffort,management-led,tosolvetheseproblems.ThiswillinvolvetheuseofmethodslikeParetoanalysis,brainstormingandcause-effectdiagrams,simplebuteffectivedatacollectionandpresentation,an
8、dthencetomeasurementofcapabilityintermsofcustomer'srequirements.Duringtheseactivitiesattentionwillincreasinglyfocusontheprocess.ProcessSPCwithintheprocesswillneedcarefulconsiderationofthetypeofmeasurementthatwillbeuseful,m