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This document contains lecture notes on quality management. The notes cover topics such as quality management components and DMAIC cycle. The notes are from Yonsei University.
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0 1. ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ 1. ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ Six Sigma 도입 2. 2. 2 2. 3. Six Sigma 도입 ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ▪ ▪ ▪ ▪ (Baldrige Criteria) 4. Appraisal Costs Prevention Costs Internal External Failure Costs...
0 1. ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ 1. ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ Six Sigma 도입 2. 2. 2 2. 3. Six Sigma 도입 ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ▪ ▪ ▪ ▪ (Baldrige Criteria) 4. Appraisal Costs Prevention Costs Internal External Failure Costs Failure Costs 4. Appraisal Costs Prevention Costs Internal External Failure Costs Failure Costs 5. 5. 0 1. ✓ ✓ 1. ✓ ✓ 1. ✓ ✓ ✓ 𝐶𝑝 ✓ 𝐶𝑝𝑢 𝐶𝑝𝑙 ✓ 1. 𝑪𝒑 ✓ ✓ 𝑪𝒑 ✓ 𝑪𝒑 ✓ 𝑪𝒑𝒖 𝑪𝒑𝒍 𝑪𝒑𝒖 𝑪𝒑𝒍 ✓ 𝑪𝒑𝒖 𝑪𝒑𝒍 3𝜎 3𝜎 𝝁 𝟑𝝈 𝝁 𝟑𝝈 2. 𝐶𝑝 ✓ 𝑪𝒑 ✓ 𝑪𝒑 ✓ ✓ 𝑪𝒑 = = 𝑪𝒑 𝑪𝒑 𝐶𝑝 LSL USL LSL USL 6𝜎 6𝜎 𝑪𝒑 𝑪𝒑 – 𝑪𝒑 𝑪𝒑 : 𝑼𝑺𝑳−𝑳𝑺𝑳 𝟒 𝑪𝒑 = = 𝑼𝑺𝑳 − 𝑳𝑺𝑳 = 8σ 𝟔𝝈 𝟑 4σ 𝑃 𝑍 < −4 + 𝑃 𝑍 > 4 = 0.000063 63ppm 𝑪𝒑𝒖 𝑪𝒑𝒍 𝜇 − 𝐿𝑆𝐿 𝐶𝑝𝑙 = 3𝜎 𝑈𝑆𝐿 − 𝜇 𝜇 − 𝐿𝑆𝐿 𝑪𝒑𝒖 = 𝑪𝒑𝒍 = 3𝜎 3𝜎 - 𝑪𝒑𝒖 𝑪𝒑𝒍 : 𝑼𝑺𝑳−μ 11.53−11.5 𝑪𝒑u = 𝑪𝒑u = = 0.5 3𝝈 3×0.02 μ−𝐿𝑆𝐿 11.5−11.47 𝑪𝒑𝑙 = 𝑪𝒑𝑙 = = 0.5 3𝝈 3×0.02 3. ✓ ✓ 𝜇 − 𝐿𝑆𝐿 𝐶𝑝𝑙 = 3𝜎 𝜇 − 𝐿𝑆𝐿 𝐶𝑝𝑙 = 3𝜎 𝜇 − 𝐿𝑆𝐿 𝐶𝑝𝑙 = 3𝜎 𝜇 − 𝐿𝑆𝐿 𝐶𝑝𝑙 = 3𝜎 0 1. ✓ ✓ 2. ✓ ✓ 𝜇 − 𝐿𝑆𝐿 𝐶𝑝𝑙 = 3𝜎 𝜇 − 𝐿𝑆𝐿 𝐶𝑝𝑙 = 3𝜎 𝜇 − 𝐿𝑆𝐿 𝐶𝑝𝑙 = 3𝜎 𝜇 − 𝐿𝑆𝐿 𝐶𝑝𝑙 = 3𝜎 𝜇 − 𝐿𝑆𝐿 𝐶𝑝𝑙 = 3𝜎 𝜇 − 𝐿𝑆𝐿 𝐶𝑝𝑙 = 3𝜎 3. ✓ ✓ ✓ 𝜇 − 𝐿𝑆𝐿 𝐶𝑝𝑙 = 3𝜎 𝜇 − 𝐿𝑆𝐿 𝐶𝑝𝑙 = 3𝜎 ഥ 𝑿 ന 𝑿 𝒁 𝑋ധ 𝜇 − 𝐿𝑆𝐿 𝑋ധ + 𝑍 ⋅ 𝑆𝑋ത 𝐶𝑝𝑙 = 𝑺 𝑋ധ − 𝑍 ⋅ 𝑆𝑋ത 3𝜎 𝑿ഥ 𝜇 − 𝐿𝑆𝐿 𝐶𝑝𝑙 = 3𝜎 ഥ 𝑿 𝑋ത ന 𝑿 σ 𝑋ത 𝑋ധ = 𝑛 𝑋ധ𝜇=− 𝐿𝑆𝐿mm 49.76 𝐶𝑝𝑙 = 3𝜎 𝑺𝑿ഥ 𝑆𝑋ത 𝑆𝑋ത = 5/ 5 = 0.56 mm 𝑈𝐶𝐿 = 𝑋ധ + 𝑍 ⋅ 𝑆𝑋ത = 49.76 + 3 ⋅ 0.56 = 51.43 mm 𝐿𝐶𝐿 = 𝑋ധ − 𝑍 ⋅ 𝑆𝑋ത = 49.76 − 3 ⋅ 0.56 = 48.08 mm 𝜇 − 𝐿𝑆𝐿 𝐶𝑝𝑙 = 3𝜎 𝜇 − 𝐿𝑆𝐿 𝐶𝑝𝑙 = 3𝜎 𝒑 ഥ 𝒑 𝒏 (𝑝)ҧ 𝜇 − 𝐿𝑆𝐿 𝒁 𝑝ҧ + Z 𝑝ҧ 1−𝑝ҧ 𝐶𝑝𝑙 = 𝑛 3𝜎 𝑝ҧ 1−𝑝ҧ 𝑝ҧ − Z 𝑛 𝜇 − 𝐿𝑆𝐿 𝐶𝑝𝑙 = 3𝜎 𝒑 𝒑 ഥ σ𝑝 𝑝ҧ = = 0.05 𝜇 −𝑛 𝐿𝑆𝐿 𝐶𝑝𝑙 = 3𝜎 𝑝ҧ 1−𝑝ҧ 0.05 1−0.05 𝑈𝐶𝐿 = 𝑝ҧ + Z = 0.05 + 3 = 0.116 𝑛 100 𝑝ҧ 1−𝑝ҧ 0.05 1−0.05 𝐿𝐶𝐿 = 𝑝ҧ − Z = 0.05 − 3 = −0.016 𝑛 100 𝜇 − 𝐿𝑆𝐿 𝐶𝑝𝑙 = 3𝜎 𝜇 − 𝐿𝑆𝐿 𝐶𝑝𝑙 = 3𝜎
