What is Six Sigma?
Question:
Answer:
The roots of Six Sigma as a measurement standard can be traced back to Carl Frederick Gauss (1777-1855) who introduced the concept of the normal curve and it was successfully implemented in Motorola.
Six Sigma simply means a measure of quality that strives for near perfection. Six Sigma is a disciplined, stastical data-driven approach and methodology for eliminating defects in any sort of organization.To achieve Six Sigma, a process must not produce more than 3.4 defects per million opportunities (DPMO).
Sigma Performance Levels -- One To Six Sigma
Sigma Level -- (DPMO)
1 sigma -- 690,000
2 sigms -- 308,537
3 sigma -- 66,807
4 sigma -- 6,210
5 sigma -- 233
6 sigma -- 3.4
What Would This Look Like In The Real World? examples are--
1. Pieces of your mail lost per year [1,600 per year]
In 1 sigma -- 1106
In 3 sigma -- 107
In 6 sigma -- <1
2. Number of empty coffee pots at work (who didn't fill the coffee pot again?) [680 per year]
In 1 sigma -- 470
In 3 sigma -- 45
In 6 sigma -- <1
3. Number of telephone disconnections [7,000 talk minutes]
In 1 sigma -- 4839
In 3 sigma -- 467
In 6 sigma -- 0.02
4. Erroneous business orders [250,000 per year]
In 1 sigma -- 172,924
In 3 sigma -- 16,694
In 6 sigma -- 0.9
Further there are six sigma personnels like
green belt
black belt
master black belt
Six Sigma is a system that ensures that u only have 3.4 errors out of a million. It has, if i remember correctly, 5 stages which include Define, Measure, Analysis, Design and Control. But look in google.. many info on that subject.
Look what i found..
Six Sigma - What is Six Sigma?
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.
Six Sigma was pioneered by Bill Smith at Motorola in 1986. Originally, it was defined as a metric for measuring defects and improving quality; and a methodology to reduce defect levels below 3.4 Defects Per (one) Million Opportunities (DPMO). Six Sigma is a registered service mark and trademark of Motorola, Inc. Motorola has reported over US$17 billion savings from Six Sigma to date.
AlliedSignal and GE became early adopters of Six Sigma, with GE reporting benefits of over US$300 million during its first year of application. Their CEOs, Larry Bossidy and Jack Welch, played a vital role in popularizing Six Sigma. Other major organizations who claim to have benefited from Six Sigma implementation are Ford, Caterpillar, Microsoft, Raytheon, Quest Diagnostics, Seagate Technology, Siemens, Merrill Lynch, Lear, 3M and many more.
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