Six Sigma is a strategy that improve customer satisfaction and shareholder value by reducing variability in various aspects of the business. Six Sigma is also a process that seeks to define the inherent variance that is present in any process.
The concept of Six Sigma is that, variations in a process leads to opportunities for error, opportunities for error then leads to product defects and product defects lead to poor customer satisfaction. Implementing Six Sigma leads to reduced variations, there by reduced defects which ultimately results in reduced costs and improved customer satisfaction.
Six Sigma works alongside other skills, experience and knowledge to provide mathematical and statistical foundation for decision making.
The Six Sigma method allows organizations to identify problems, validate assumptions, brainstorm solutions and plan for implementation to avoid unintended consequences.
It is said that for every 1 $ you spend on Six Sigma projects, you will bring 4 $ of savings.