Six Sigma

Six Sigma simply means a measure of quality that strives for near perfection. (see chart below)

Below are three definitions of six sigma.

1. 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. A six sigma defect is defined as anything outside of a customer's specifications.

2. Six Sigma is a rigorous and disciplined methodology that uses data and statistical analysis to measure and improve a company's operational performance by identifying and eliminating "defects".   Commonly defined as 3.4 defects per million opportunities, Six Sigma can be defined and understood at three distinct levels: metric, methodology and philosophy.      

3. Six Sigma is a rigorous and a systematic methodology that utilizes information (management by facts) and statistical analysis to measure and improve operational performance, practices and systems by identifying and preventing 'defects'  in order to anticipate and exceed expectations of all stakeholders.

Thousands of companies around the world have discovered the far reaching benefits of Six Sigma.