Six Sigma is a structured problem solving methodology using statistical tools to focus on cost improvements in process and product development. Six Sigma was developed in 1986 by Motorola, and used throughout the world by different industries, governments, and applied research. The use of six sigma methods and tools has resulted in significant savings to businesses globally. Company-wide breakthroughs in productivity gains, quality improvements, and in-cycle time reduction are most commonly experienced with the use of six sigma thinking and techniques. Six Sigma methods deliver businesses the analytical tools to improve process capabilities - leading to defect reduction and vast improvement in profits. Analytical and descriptive statistics, hypothesis testing, and design of experiments are only a few of the tools used to make these improvements.