The Science In Six Sigma

摘要

Contrary to popular perception, some of the , less important aspects of Six Sigma are the much heralded Six Sigma concept itself-ormance quality target of 3.4 defects per million opportunities-and the sigma scale of quality. One of the more important contributions of Six Sigma is the structure it provides for managing an organization's improvement initiatives. It also prescribes a method to guide project leaders and offers an array of analysis tools. When Six Sigma was introduced by Motorola in the 1980s, it was not a completely new approach. It-built on field tested and proven principles that were developed in quality engineering, management and industrial statistics throughout the 20th century. Six Sigma's methods are based soundly in science, making a case for Six Sigma based on its core principles rather than its rhetoric.