Answer Posted / ranganadh
Six Sigma stands for Six Standard Deviations (Sigma is the
Greek letter used to represent standard deviation in
statistics) from mean. Six Sigma methodology provides the
techniques and tools to improve the capability and reduce the
defects in any process.
Six Sigma methodology improves any existing business process
by constantly reviewing and re-tuning the process. To achieve
this, Six Sigma uses a methodology known as DMAIC (Define
opportunities, Measure performance, Analyze opportunity,
Improve performance, Control performance).
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