ABSTRACT
Six Sigma is a method for improving the quality of the processes in an enterprise. Each time that process is executed, variation can occur with respect to the results of the previous time. With six sigma there are maximally 3.4 defects per million opportunities, where 99.9997% good products are produced. An important aspect of this method is that it departs from the wishes of the customer and the defects are based on solid measurements and not on intuition or average values. With this method, a fixed phased plan is followed to achieve the process improvements. This concerns the business processes of the enterprise, where it makes no difference whether it concerns a manufacturing or a service-providing company. Although Six Sigma almost always leads to good results, a consideration should be made with regard to the investment in time and money. The method requires time and energy from the employees of the enterprise at both high and low levels.
