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CTQ requirements in all process steps Define Defect Opportunities ? Any step in the process where a Defect could occur in a CTQ Arrive at DPMO ? Use the SIGMA TABLE Convert DPMO to Sigma ? Defects Per Million Opportunities 2 3 4 5 6 308,537 66,807 6,210 233 PPM ? Defects per Million of Opportunity Sigma Level Well 謝謝觀看 /歡迎下載 BY FAITH I MEAN A VISION OF GOOD ONE CHERISHES AND THE ENTHUSIASM THAT PUSHES ONE TO SEEK ITS FULFILLMENT REGARDLESS OF OBSTACLES. BY FAITH I BY FAITH 。?偏移 ?和 ?已知 缺點(diǎn)乃隨意分佈,且不同零件及製程相互獨(dú)立 Well 偏移177。5 ? 177。3 ? 177。1 ? 177。 Well 美國(guó)某顧問機(jī)構(gòu)調(diào)查 企業(yè)急需改善 之 10 大需求 : 1. 市場(chǎng)佔(zhàn)有率 /成長(zhǎng) 2. 全球市場(chǎng)擴(kuò)張 3. 供應(yīng)鏈管理 4. 設(shè)施合理化與效率化運(yùn)用 5. 降低製造成本 6. 資產(chǎn)管理 7. 通路領(lǐng)導(dǎo)性 8. 股東價(jià)值 9. 產(chǎn)品線合理性 material volatility Well Benefits 約 : 1 且成長(zhǎng)中 US $ 百萬(wàn)0500100015002023250030001996 1998 2023(E)成本 獲利改善服務(wù)水準(zhǔn) 加速回應(yīng)速度 在 GE顧客端之專案 : 增進(jìn)業(yè)務(wù)營(yíng)收 生產(chǎn)邊際效應(yīng)增加 奇異公司推行 6Sigma之成本與效益 Well Statistics Meaning of 6 Sigma Well What’ s the meaning of Sigma How to measure the data ? Which one is better ? 100, 90, 110, 120, 80, Mean = 100 100, 110,110, 90, 90, Mean = 100 Well ????????????????xNxNxNiiNiiNiiN122121( )( )平均值 變異數(shù) 標(biāo)準(zhǔn)差 ? 從群體 N 中取樣 n xxnSx xnSx xniiniiniin?????????????12212111( )( )樣本平均值 樣本變異數(shù) 樣本標(biāo)準(zhǔn)差 Well Measurement System A Graphic/Quantitative Perspective on Variation Average Value Many Data Sets Have a Normal or Bell Shape Number of People Arriving at CRD Time 7:00 7:15 7:30 7:45 8:00 8:15 8:30 8:45 9:00 9:15 Well Z Scale of Measure Z = A Unit of Measure Equivalent to the Number of Standard Deviations that a Value is Away from the Target Value Z Values USL LSL ? ? ? = Process Mean 181。 ? 1992提出 Six Sigma and Beyond: 所做的每一件事不但要達(dá)到 Six Sigma,並且超越它。Well 『 6 Sigma 概念與