质量管理的三部曲是质量策划、质量控制、质量改进,六西格玛管理DMAIC流程的最后一个阶段就是控制。从二十世纪三十年代中期统计质量控制诞生以来,质量控制就一直是质量管理活动中的一个重要环节。六西格玛管理强调过程活动的量化,这使得以量化分析为基础的过程控制技术有了广? The trilogy of quality management is quality planning, quality control, quality improvement, and the last phase of Six Sigma management DMAIC process is control. Since the birth of statistical quality control in the mid-1930s, quality control has been an important part of quality management activities. Six Sigma management emphasizes the quantification of process activities, which makes the process control technology based on quantitative analysis widely available.