This paper introduces the reference model to structure Six Sigma. This model is a result of theory incorporation that contributes to increase the strategic power of Six Sigma for improving businesses performance. Reference model proposal points out certain primordial requirements for de Six Sigma program success. The theoretical basis to sustain the reference model was supported in studies about the influence of critical factors such as: strategic orientation and strategic alignment; business performance measurement; statistical approach (statistical thinking); people training; project implementation; and information technology use. Complementing the model proposition, this paper presents an empiric point of view about the contribution factors examined in the reference model formulation. The results show case studies carried out in four Brazilian subsidiaries of large multinationals companies. The case studies analysis indicates some positive evidences of the considerable influence of the previously mentioned factors on Six Sigma success and consolidation.
Six Sigma; Quality; Strategic alignment; Performance measurement; DMAIC; Statistical thinking
