六西格玛-绿带教程-测量-项目指标

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1、ProjectMetrics(计划指标)1ModuleObjectives(章节目的)•ProjectMetrics(计划指标)•TheBasics(基础)•Non-SixSigmaMetrics(非SixSigma指标)•DefectivePartsperMillion(每百万个的缺陷数)•First(Final)TestYield一次性(终检)成品率•SixSigmaMetrics(SixSigma指标)•DefectsperUnit(单位缺点数)•DefectsperMillionOpportunities(每百万个机会缺点数)•InProcess&RolledThroughput

2、Yield(平均生产成品率)•RTYvs.FTY•TheHiddenFactory(隐形工厂)2TheBasics(基础)•Defective(次品)–Aunitthatcontainsatleastonedefect(一件包含至少一个缺陷的产品)•Defect(缺陷)–Anoutputofaprocessthatdoesnotmeetadefinedspecification-MustbeMeasurable!(一个流程未满足规定标准(长度,颜色,表面光滑度等)的输出指标-必须可测量)•Opportunity(机会)–Occurseachtimetheproductishandled–

3、apointatwhichacustomerrequirementiseithermetormissed(客户要求任何不符合或错失在产品任何制程中发生的机率)3Defects(缺陷)vs.Defectives(次品)•CustomerSpecifications:(顾客规格)HowmanyDefectives•Color(颜色):Blue(蓝色)arethere?这里有多少次•Shape(形状):Round(圆形)品•Text(原文):MHowmanyDefectsarethere?这里有多少缺陷MMMMMMMMM4ProjectMetrics(计划指标)•Metricsareusedt

4、otracktheprogressofyourproject.They…(指针用来追踪你的计划进度)•Determinepriorities(决定优先次序)•Allowyoutotrackimprovements(允许你追踪改进)•Establishaformatforreporting(建立一个报告版本)•Provideacommonlanguage(提供一个共通语言)5Non-SixSigmaMetrics–DPPM(不是SixSigma指标-DPPM)•DefectivePartsperMillion(每百万个次品数)CountsDefectivesnotDefects(算次品而

5、不是缺陷)Usedtodeterminehowmanybadunitsreachthecustomer(用来决定有多少不良品送到客户)DefectivePartsDPPM,1000,000TotalUnitsProcessedStep1Step2Step3Customer6Non-SixSigmaMetrics–FTY(不是SixSigma指标-FTY)•FinalTestYieldorFirstTimeYield(终检成品率或一次成品率)Safetynetforcatchingdefectiveunitsbeforetheyreachthecustomer(在送到客户之前找到次

6、品的安全网)Onlyaseffectiveasyourinspectionprocess(只有有效的提高你的检验过程)Doesnotcapturethe“whole”picture(不是捕获“整体”画面)Doesnotidentifyspecificareasforimprovement(不是确定特殊区段进行改进)UnitsPassingFinalTestFTYTotalUnitsTestedFTYisnotaSixSigmaMetric!!!7SixSigmaMetrics(SixSigma指标)Havenofear…Safewatersareahead!!!8SixSigma

7、Metrics–Dpu(SixSigma指标-Dpu)•DefectsperUnit(单位缺陷数)CapturesDefectsnotDefectives(捕捉缺陷而非次品)Focusedonin-processdefectsnotfinaldefectives(焦点在制程缺陷而非最终次品)Idealforimprovement(改进的意见)TotalDefectsObservedDpuTotalUnitsProcessed