DMAICI阶段(UT).ppt

UTStarcom Confidential UTStarcom Confidential 定 义 测 量 分 析 了解科学解决问题的基本思路; 掌握运用DMAIC模型中IC两阶段的方法; 掌握改进阶段和控制阶段常用的统计工具等; 为KFE小组提供问题解决的统一模型和成果展示的方法和思路. Root Cause Quantification(原因分析的量化分解) Summary of Statistical Tools 1(统计工具总结～掌握) Summary of Statistical Tools 2 (统计工具总结~选修) 4.0 改进阶段 改进阶段的常用工具 DOE实验设计（简述） 团队决策方法 优先矩阵法（推荐） 表决法 方案试运行 改进计划 防错/防呆设计 DOE实验设计（简述） DOE实验设计（简述） DOE实验设计（简述） Response （响应） a measurable outcome of interest, e.g. yield, strength, etc Factors （因子/因素） controllable variables that are deliberately manipulated to determine their individual and joint effects on the response(s), e.g. temperature, time, etc Level （水平） a value or setting of a factor, e.g. Level 1 for time = 2 hr Level 2 for time = 3 hr Treatment （处理） a set of specified factor levels for an experimental run e.g. Treatment 1: time = 2 hr and temperature = 175°C Treatment 2: time = 3 hr and temperature = 225°C Noise （噪音） variables that affect product/process performance, whose values cannot be controlled or are not controlled for economic reasons DOE实验设计（简述） To determine which factors have an influential effect on the response To determine the appropriate settings of the influential factors for optimization of the response To determine the appropriate settings of the influential factors for minimization of the response’s variability To determine the appropriate settings of the influential factors for maximization of the response’s robustness vs the noise factors DOE实验设计（简述） A sequence of experimental runs in which only one factor is manipulated while the values of all other factors are held constant, followed by a sequence of experimental runs in which a second factor is manipulated and all other factors are held constant, and so on. 每一次实验只有一个因子发生变化，而其他因子不变；然后第二个因子变化，其他因子不变… … 如A, B, C 三个因素子有两个level：level1，level2，实验设计方案有8个： （A1,B1,C1 A1,B1,C2 A1,B2,C1 A1,B2,C2 A2,B1,C1 A2,B1,C2 A2,B2,