The name for the process methodology and philosophy of managing that focuses on eliminating defects through practices that emphasize understanding, measuring and improving processes. It can sometimes be seen as a more evolved, second generation version of Total Quality Management. (JJH)
Other Definitions
Six Sigma – Six Sigma is one of the relatively newer labels that is being used to promote the advantages of quality improvement. It is often described as a philosophy, a measurement, a goal, and a deployment methodology. (SuccessThroughQuality.com Glossary)