WHAT-IS . NET
Information and answers to all your common and special questions.
Six Sigma at many organizations simply means a measure of quality that strives for near perfection. Six Sigma is a  disciplined, data-driven approach and methodology for eliminating defects (driving towards six standard deviations between  the mean and the nearest specification limit) in any process - from manufacturing to transactional and from product to  service.

The statistical representation of Six Sigma describes quantitatively how a process is performing. To achieve Six Sigma, a  process must not produce more than 3.4 defects per million opportunities. A Six Sigma defect is defined as anything outside  of customer specifications. A Six Sigma opportunity is then the total quantity of chances for a defect. Process sigma can  easily be calculated using a Six Sigma calculator.

The fundamental objective of the Six Sigma methodology is the implementation of a measurement-based strategy that focuses on  process improvement and variation reduction through the application of Six Sigma improvement projects.
Copyright ©2009 What-is.Net  All rights reserved.
Last Updated: Sep 2009
What is Six Sigma?
This is accomplished  through the use of two Six Sigma sub-methodologies: DMAIC and DMADV. The Six Sigma DMAIC process (define, measure, analyze,  improve, control) is an improvement system for existing processes falling below specification and looking for incremental  improvement. The Six Sigma DMADV process (define, measure, analyze, design, verify) is an improvement system used to develop  new processes or products at Six Sigma quality levels. It can also be employed if a current process requires more than just  incremental improvement. Both Six Sigma processes are executed by Six Sigma Green Belts and Six Sigma Black Belts, and are  overseen by Six Sigma Master Black Belts.
What is Six Sigma?
Return to HOME Page