TOC改善实施效果是6sigma的20倍, Lean的9倍
作为全球两大热门管理方式6sigma与lean模式, 近年来国内众多大型企业先后导入这些管理模式, 取得的实际改善成果是多了一堆虚伪的6sigma? 或lean改善报告? 还是产生了实际的改善成果?
或许,只有那些企业的CFO们知道了。在2006年, 美国生产运营管理权威机构—美国运营管理协会(APICS)抽查了21家企业的100多个改善项目, 其中有11家导入了6sigma, 4家企业导入了lean, 6家企业在导入前面两种管理模式后,又导入了TOC管理模式, 结论得出:
TOC的改善效果是6sigma的20倍, 是lean的9倍, 并将研究结果在2006年5月的APICS杂志进行发表。
相关原文请参考下面网站链接:
(A study released in the May, 2006 APICS magazine demonstrates that TOC is twenty times as effective as Six Sigma, and nearly ten times more effective than lean at causing cost savings. I find this remarkable result especially interesting because cost savings are a side benefit of TOC...TOC focuses on increasing Throughput.
This is the only scientific double-blind study of its kind performed "in the wild", i.e. in actual business plants. The authors summarize the results of over 100 improvement projects, where:
11 plants applied Six Sigma
4 plants applied Lean
6 plants applied TOC, Lean and Six Sigma
The results are unequivocal:
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A little further analysis shows:
If we assume linearity (i.e. that the treatments are additive), we can estimate TOC alone. The 11 six sigma plants saved 0.63% per plant, and the 4 Lean plants saved 1.5% per plant. So, we subtract 6x(.63+1.5) = 13% for the 6 plants that did the combined, the estimated TOC alone savings is 76%, or ~13 % per plant. So, TOC is twenty times more effective than six sigma, and around nine times more effective than lean.
Lean Project Management (LPM), API's extension of CCPM, takes the same approach as the workers in these plants: combining the synergistic effects of the three improvement approaches. The combination caused savings of 14% (of the total saved) per plant, or 24 times more effective that six sigma alone, and ten times Lean alone.
Pirasteh, R. and Farah, K. (2006). Continuous Improvement Trio: The top elements of TOC, lean, and six sigma make beautiful music together. APICS magazine, May, 2006 pp. 31-36
更多TOC新闻请参见网站:www.bama.cc
该贴来自群组:TOC约束理论
我在我的博客http://poogi.blogcn.com 中,也翻译转载了一篇文章,是关于APICS与达文波特指出要用TOC指导6sigma与lean的实施的,达文波特甚至指出,6sigma正在“走下坡路”。
If we assume linearity (i.e. that the treatments are additive), we can estimate TOC alone. The 11 six sigma plants saved 0.63% per plant (共11家工厂应用6Sigma,平均每家可节省0.63%), and the 4 Lean plants saved 1.5% per plant (共4家工厂应用Lean,平均每家可节省1.5%). So, we subtract 6x(.63+1.5) = 13% (对于应用TOC的6家工厂,减去其应用Lean与6Sigma产生的效果13%) for the 6 plants that did the combined, the estimated TOC alone savings is 76% (独立应用TOC产生的效果76%), or ~13 % per plant (或者说,独立应用TOC,产生效果的范围是:13% ~ 76%). So, TOC is twenty times (用最小值0.13/0.0063,20倍以上,取值20倍) more effective than six sigma, and around nine times (用最小值0.13/0.015,约8.67倍以上,取值9倍) more effective than lean.
Lean Project Management (LPM), API's extension of CCPM, takes the same approach as the workers in these plants: combining the synergistic effects of the three improvement approaches. The combination caused savings of 14% (of the total saved) per plant (组合应用TOC、Lean与6Sigma,可产生效果是:平均每家可节省14%), or 24 times more effective that six sigma alone (独立应用TOC,可产生效果是6Sigma的24倍以上), and ten times Lean alone (独立应用TOC,可产生效果是Lean的10倍以上).
得出的结论是:建议组合应用TOC、Lean、6Sigma,可产生更佳的实际效果。
楼主啊,的确如你所说的,如果这些东西有机地结合起来,一定会产生不同凡响的效果.但是平心而论,国内又有几家能够做好其中的一项呢.当然从长远来讲,我们应该去思考如何把这些东西有机地结合起来.但是就现实而言,我们还是就致力于其中的一个吧!
TOC是最基础的管理方法-识别浪费点,建立浪费意识
Lean是关注减少浪费的方法-瘦身方法论
6西格玛是消除浪费:最高境界的管理方式,提供了识别问题,解决问题的方法和流程
这是三个层次的生产管理,因此TOC带来的改善是最大的,至少80%的节省。
适用的就是最好的。
时髦的名词,你我都不知道其真正的含义,唯一知道的就是其拼写和读音,那有什么用呢?《边城浪子》中的傅红雪一刀毙命,练就夺命绝招,不在于招式的新奇,而在于实用;在于精。
没有任何方法可以在任何企业行得通,理论是可以实践而的因地制宜!
TOC与Lean各有所长,也有所短。犹如龟兔赛跑一样,在企业内部,每个环节、部门的能力和速度都不可能一样高低,就存在着相互配合与协调的问题。
“龟”与“兔”如何配合才能赢得更快的市场订单?这是一个值得探讨的问题。 [em03]没认真研究过TOC,谁能一句话说明TOC能给企业带来什么?还有,有没有TOC的成功案例?
zjmche 发表于 2012-3-6 09:03
刚刚看完这一本,核心一句话,用LSS改进瓶颈,以TOC思考方式消除组织政策约束。
Velocity: Combining Le ...
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