is Six Sigma Dead?

摘要

There are reports from the field about the death of Six Sigma.1 The word is that it has been overused, has not brought its expected benefits and that newer methods, such as the theory of constraints and systems thinking, are replacing it. A 2007 study from the consulting firm QualPro showed that 53 of 58 large companies that use Six Sigma have trailed the S&P 500 since they implemented it.2 The quality profession needs to examine the underlying root causes so we can repair the damage being done to Six Sigma's reputation.