六西格玛是一项质量管理法,是企业改进生产流程、提高产品/服务质量的一项有效工具, 它能够降低企业流程差异、提升企业绩效,从而帮助企业提高产品质量、增加盈利、提升员工士气。六西格玛法是由摩托罗拉公司的Mikel Harry开发的,并率先于摩托罗拉公司推广运用。六西格玛法聚焦于企业的流程控制,严格将标准偏差值控制在六西格玛之...
(sigma)标准偏差,描述数据距离中心值的远近。 关于sigma的数学基础知识 MEAN() 1标准偏差 测量到的特征值 特征值产生的频率 关于sigma的数学基础知识 对于给定的数据分布,和的值是特定的,可根据数据分布的变化而改变。 值描述中心值变化的趋势,值越大,曲线向右移动,分布中心发生变化;...
Six Sigma greatly refines processes, producing only 3.4 defects per million (DPMO). There are seven sigma levels that denote levels of quality. Note that not every product or business requires a Six Sigma level of quality, while some products (such as semiconductors) require a much higher sigm...
Yield: The percentage of a process that is free of defects. To calculate process yield, we use the following formula: Yield (%) = (1 − DPO) × 100 Sigma Level: Organizations determine the sigma levels of given processes (one sigma, six sigma, etc.) as a means of comparing the per...
White Belt.This first level of Lean Six Sigma certification aims to provide trainees with a fundamental understanding of Lean Six Sigma methodology, including but not limited to process improvement, variability, eliminating negative effects on process performance and deciding what roles specific team memb...
Use the conversion chart to determine DPMO and Sigma Level.Simplified Sigma Conversion TableIf your yield isYour DPMO isYour Sigma is 30.9% 690,000 1.0 62.9% 308,000 2.0 93.3 66,800 3.0 99.4 6,210 4.0 99.98 320 5.0 99.9997 3.4 6.0Print...
A Six Sigma process refers to the process short-term performance or how it is performing currently. When referring to DPMO of the process, we are referring to long-term or projected performance behavior. A Six Sigma level of performance has 3.4 defects per million opportunities (3.4 DPMO). A...
Explore the latest insights, trends, and expert opinions on Lean Six Sigma, process improvement, and more in MoreSteam's blog.
Welcome to Six Sigma DMAIC Series. I am launching this series to introduce one of most important problem-solving methodology. DMAIC is one of the most important tools in continuous improvement toolbox. It is closely associated with Six Sigma methodology, but it is also used by many other ...
Ken Feldman, PhD, is a Lean Six Sigma (LSS) Master Black Belt and Principal Consultant at Optec Consulting. He has more than 50 years of experience helping organizations improve quality and performance in a wide variety of diverse industries. ...