Six Sigma is a set of practices originally developed by
Motorola to systematically improve processes by eliminating defects. A defect is defined as nonconformity of a product or service to its specifications.While the particulars of the methodology were originally formulated by
Bill Smith at Motorola in 1986, Six Sigma was heavily inspired by six preceding decades of quality improvement methodologies such as
quality control,
TQM, and
Zero Defects. Like its predecessors, Six Sigma asserts the following:Continuous efforts to reduce variation in process outputs is key to business successManufacturing and business processes can be measured, analyzed, improved and controlledSucceeding at achieving sustained quality improvement requires commitment from the entire organization, particularly from top-level management
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A methodology that provides businesses with the tools to improve the capability of their business processes. This increase in performance and decrease in process variation lead to defect reduction and improvement in profits, employee morale and quality of product.