Tools for the successful application of six sigma Six Sigma has prevailed in the international as well as in the German economy more and more and is an increasingly popular and no longer to be thinking away powerful management tool now in almost all industries. The reason for this is the increasing pressure on organizations to find a balance between not declining cost pressures, the ever increasing needs of the customers on quality and reliability, as well as the existence in national and international competition by backing up and removing the competitive differentiation and market share. Six Sigma for each of the mentioned problems is suitable depending on the pursued strategy and given problem in the company. Six Sigma can with the focus of the cost-cutting also used, with the focus of improving the quality and the competitiveness of customer satisfaction and customer loyalty. Why is it now that six resulted in Sigma even if processes still considerable improvements, the already were over the years with classical Qualitatswerkzeugenoptimiert? That error rates, cycle times or costs already in the framework of a single project more than can be cut in half, is not a rarity. The secret of the success of Six Sigma’s in its consequence in the approach, the intelligent use of the method associated and last but not least in the clear orientation figures, data and facts underlying the project work. You get Six Sigma DMAIC or DMADV (design for six sigma) process of the faith to knowledge! The classic six sigma process for problem-solving 5 phases. The problem to be solved with the project and the objectives associated with the project will be formulated first clear and concrete. Then the situation is in fact determined and all data necessary to solve collected and evaluated. Validated and meaningful data for the analysis on the one hand and the detailed analysis of the associated with the problem process with appropriate tools are the key elements to find the solution.