订单交货与周期改善 .ppt

DOE Analysis and Interpret Step5 :Check for possible transformations No need to perform transformation Step6: Romove non-significant terms/Refit reduced Model Reduced Model-step2: create the Model Reduced Model-step3: Fit the model 兰线在红线的下方 DOE Analysis and Interpret The resulting best fit reduced model for the y data set is then the following: Y=152.29737+2.1 x1+1.69375 x2+ 0.9875x4+ 0.8625x2*x4 Where x1,x2,x4 are the coded levels of pio code , max code, and large code respectively. DOE Analysis and Interpret Reduced Model-step4: Perform Residual diagnostic Residuals vs. Predicted Y Residual vs. Predicted Y Normal quantile plot of residuals Residual vs. input factors Reduced Model-step5: Check for transformations Reduced Model-step6: Remove non-significant terms No need to perform transformation DOE Analysis and Interpret Step7: Choose improved model. The predicated response is significant at the level of 0.05 because all confidence curves cross horizontal line. Y=152.29+2.10piocode +1.69maxcode +0.98 largecode+0.86maxcode*largecode DOE Analysis and Interpret Step8: Interpret chosen model: 当pio speed=2,max county=32,large head=240时，硬盘的传输时间最短,最短时间为 148S. Step9 : No need to continue the experiment. DOE 结论 1、? 影响备料组Magic JUMBO SERIES DD-3000/CN-3000硬盘复制机的传输时间的主要因素为：PIO Speed 、max multi、large head, 而且前期的这些参数的设置（PIO Speed= 3、max multi=128、large head=256），不是最优的设置，可以更改这些输入参数的设置为PIO Speed= 2、max multi=32、large head=240时，硬盘的复制时间有更小的值，最小值148S。 ? 每块dos系统的母盘的复制时间可缩短8秒，提高效率5%，同时经专业技术人员验证，对质量也没有负面影响。 对于其他非dos操作系统的母盘，应为内装的系统文件较多，占用的空间较大（如WINXP系统），复制的时间更长。（预装WINXP系统的硬盘的复制时间约17分钟），通过本试验的参数设置更改后，经验证，每块硬盘的传输时间可缩短约72秒。 Action Plan 项目对策落实计划 立即行动!!! The Six-step Problem-solving Problem STEP 1 确定和定义问题 STEP 2 分析问题并找出根本原因 STEP 3 寻求多种解决方案 STEP 4 寻求最优方案并制定行动计划 STEP 5 方案实施 STEP 6 评估结果并长期保持 主要内容 硬盘备料滞后解决方案； 标签滞后解决方案； 检验滞后解决方案 工具与方法 Histograms, Survey worksheet Brainstorming, Flowcharts, Action Planning Worksheet Responsibility Matri