程序基线管理方案分析

,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,*,),Planning Process Baselining,1,程序,基,基线,2,CollectingDatatoCharacterizetheCurrentProcessOutput(Y),The objective is toreport howtheprocess isperforming atpresent.,ShortTermVariation,Longtermprocess capability,Variation,Centering,Stability,How are the independent variables changing astheprocess runs its course?,Datacollectionwillbe designed toanswer these questions,3,收集数据用,以,以描述目前,程,程序结果(,Y),以汇报目前,程,程序运行情,况,况为目标,。,短期,差异,长期程序能,力,力,差异,集中,稳定,各独立的变,量,量是如何在,程,程序运行过,程,程中发生,差异,的。,数据收集专,为,为回答这些,问,问题而设计,。,。,4,The Effects ofVariation,Therearetwo typesof variation.,Common Cause Variation,Variationthatis inherent inthe existing process,Assignable(Special)Cause Variation,Variationthatcan be segregated and assignedto aspecificcause.,Our process analysismethods will be plannedto enableus toseparateand evaluate both kinds of variation.,5,差异,的影响,差异,存在两种。,常规原因,的差异,差异,固定存在于,现,现有程序中,。,。,（特殊）原,因,因,的差异,差异,可以被隔离,并,并被归因于,一,一特定原因,。,。,程序分析方,法,法将使我们,能,能有效分离,及,及评估两种,差异,。,6,Common Cause Variation,Thisvariationis presentin everyprocess.,It cannotbe controlled or reducedwiththe existing technology.,It limitsthe process capability.,In processbaselining,wemeasure this variation by theamount ofvariationin the short term subgroups,oftencalled rational subgroups.,s,ST,willrecord thecommon cause variation and Z,ST,willreport theShort Term Capability.,Another term for Common CauseVariationis Residual.,Sincethisvariationis related toprocess technology,a poor Z,ST,willgenerallyindicate aneedforaddressingpartor process design issues.,7,常规原因的,差异,此,差异,存在于每一,程,程序中。,运用现有技,术,术是不能控,制,制或减少此,差异,。,此,差异,限制了程序,能,能力。,在程序基线,内,内，我们运,用,用短期子群,内,内的,差异,量来测量,差异,，短期子群,即,即为通常所,称,称的合理子,群,群。,s,ST,记录常规,差异,，,Z,ST,报告短期能,力,力。,常规原因的,差异,的另一术语,为,为残差。,由于,差异,与程序技术,相,相关联，因,此,此一个相对,差,差的,Z,ST,会显示需要,重新描述部,分,分程序设计,。,。,8,AssignableCause Variation,Thisvariationis the result of outsideinfluenceson aprocess that causeit toshift anddrift.,It ispotentially controllablewiththeexisting technology,It will affectthe process performance over time.,We plan the processbaseliningin such awayas tomaximizethe opportunityforcapturingthe affectof assignablecausevariation.,s,LT,willrecord thetotal assignable cause variation.Z,LT,willreport thetotal long term capability.,In order to addressthisvariation,well need toknowhow the variousvital factorscontributeto causing it.This will bethe objective of Analyze.,9,可归属,原因的,差异,这种,差异,是外来因素,影,影响程序运,行,行的结果。,运用现有的,技,技术有潜在,的,的可能来控,制,制此,差异,。,随着时间的,推,推移，此,差异,将会影响到,程,程序运行。,我们所计划,的,的程序基线,是,是以最能捕,获,获,可归属,原因的,差异,为基本。,s,LT,记录总体,可归属,原因的,差异,，,Z,LT,能报告总体,长,长期能力。,为了描述此,差异,，我们需要,知,知道各种对,于,于引起此,差异,起相当作用,的,的重要因素,。,。这就是分,析,析的目的。,10,Examples of Assignable Cause Variation,Transportation,TypevehicleType Roads,Location of TerminusWeather,Raw Materials/Supplies,Percent RegrindMaterialProperties,People,ExperienceTraining,Environment,TemperatureHumidity,Manufacturing,ToolWearShut height,Commercial,Internet connectionspeedKeystrokes,11,特殊原因变,化,化举例,运输,车辆类型,道,路类型,终点,位置,天气,原料/供应,再研磨百分,率,率原料,属,属性,人,经验培,训,训,环境,温度,湿,湿度,制造,工具磨损,模具冲压尺,寸,寸,商用,互联网连接,速,速度,键击,12,Rational Subgroup Data,A Rationalsubgroupis asmallcollection ofsamples taken over ashort period of time orin similarconditions.We believethe data is asfreeas possible from multiplelevels ofassignable causes.,It isa snapshot ofthe process.,Multiple Rational Subgroup samplesare the basis for quantifyingprocess variation toreflect both shorttermand long term capability,.,Collectingdatain this mannerallows usto characterize:,Technology(Short Term)vs Control(LongTerm),Centeringvs.Spread,Characterizingthe issuesis aGiant Step towardsresolvingthem,13,合理子集数,据,据,合理子集指,的,的是在短时,期,期或在相似,条,条件下获得,的,的一小组样,本,本的集合。,我,我们认为这,些,些数据可以,自,自由获取于,不,不同级别,可归属,的原因。,这是对程序,的,的快照。,多重合理子,集,集样本是量,化,化程序,差异,的基本，可,同,同时反映短,期,期和长期的,能,能力。,这样的数据,收,收集方式使,我,我们能够描,述,述：,技术（短期,）,）,vs,控制（长期,）,）,集中,vs.,离散,描述问题是,解,解决问题的,重,重大步骤,14,ShortTermCapability,Z,ST,(Z Short Term)is a measure oftechnological capability.,Internal process variation drives shorttermcapability.,Z,ST,is calculated assuming the processis centered onthe process target.,The goal for Z,ST,is 6.0.,ShortTermCapability isalsoknownas,Process Entitlement,Process Potential,Technologyof the Process,The measure Z,ST,is the best your processcan be.,15,短期能力,Z,ST,(Z,短期）是,技,技术能力的,测,测量方法。,内部程序变,化,化驱动短期,能,能力。,Z,ST,的计算基于,下,下列假设，,即,即该程序是,集,集中以程序,目,目标为中心,。,。,Z,ST,的目标值为6.0。,短期能力应,被,被概括为,程序应有能,力,力,程序潜能,程序技术,Z,ST,能使你的程,序,序最优化,16,LongTermCapability,Z,LT,(Z Long Term)is a measure ofthe totalvariationof the processoutput over time.,Datacollectionperiod must belongenough orunder a rangeof conditions that allowopportunity forexternalfactors toinfluencetheprocess.,BothProcess Variation and ProcessControl drive long term capability.,Z,LT,is calculated usingthe actualmeasuredmeanof the data.,The Long Term Capabilityrepresentswhatthecustomer sees.,The goal for Z,LT,is 4.5,Z,LT,is also calledProcess Performance,17,长期能力,Z,LT,(Z,长期,),是程序结果,总,总体,差异,的测量方法,。,。,数据收集时,期,期必