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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'totalquality"withoutwhichSPC,JIT
2、,MRP,etc.,cannotyieldrealbenefitsincosts,productivityandattittidesaswel1assimplyproductquality.Itmayperpetuatethe"us-and-them"divisionsthatSPC,workingwithin(forexample)theDemingmanagementstyle,shoulderode.However,inprocess-supportandbusinessareas,thereoftenneedstobeachangeofemphasisin
3、thetechniquesused,andhenceofrelevanttrainingmaterial•Forthisreasonalone,andnotbecausetheyaredistinctcompartments,itisusefultoreviewsomeofthestatisticalmethodsappropriateinthreemainspheresofactivity.Intheorderinwhichtheyoftendevelop,thesespheresofactivityareasfollows.ThepurposeofSPCist
4、ousecontrollimitstoimprovetheprocessbasedontheprocessbehavior.Whencontrollimitsareutilized，weonlyadjusttheprocesswhenthereisatruestatisticalsignal.Themostcommonstrainofthecontrollimitsvirusoccurswhenmanagementsetscontrollimitsbasedontheiropinionofwheretheprocessshouldbeinsteadoftherea
5、lityoftheprocess.Thedouble1imitvisionvirussettiesintheopticnervecreatingavisiondistortionthatcausesonetoplacebothspecificationandcontrollimitsonacontrolchart.Symptomsofobsessivecompulsivedatagatheringincludeaddingchecksheetsornewdatacollectiontocombatanyproductionissue.Symptomsoftampe
6、rfeverincludeanunnaturaldesireto“improve"aprocessthatisincontro1.ProductsThisiswhereSPCoftenbegins,with(typically)thex,Rorattributechart.Ttmustleadontoproblemdiagnosisandatearneffort,management-led,tosolvetheseproblems.ThiswillinvolvetheuseofmethodslikeParetoanalysis,brainstormingandc
7、ause-effectdiagrams,simplebuteffectivedatacollectionandpresentation,andthencetomeasurementofcapabilityintermsofcustomer'srequirements.Duringtheseactivitiesattentionwi11increasinglyfocusontheprocess.ProcessSPCwithintheprocesswillneedcarefulconsiderationofthetypeofmeasurementthatwillbeu
8、seful
