In short, Six Sigma means one standard deviation. So, in this case, Six Sigma is a method that organizations use as a tool to increase performance by reducing defects. What is it not? It's not just a slogan or an expression. It's the driving force behind every great company out there. The idea behind Six Sigma is that you can evaluate the amount of defects in a process and systematically reduce them. The goal is to bring the number of defects produced by a company as close to zero as possible. Now we all know that absolute zero is not really possible. Six Sigma strives to achieve 3.4 defects per million possibilities. Possibility refers to the possibility of a non-compliance occurring. Non-compliance causes many problems if it is not managed properly. It can cause dissatisfied customers which can lead to fewer orders which can lead to less profits which in turn leads to layoffs and foreclosures. Now, this may sound a little dramatic; however, how long do you think a company will stay afloat if it produces potentially lethal products?