The institutions of higher education that aim at continuous improvement, within the framework of accreditation of high institutional quality, can complement and potentiate their quality management model on philosophies such as Six Sigma and Lean Manufacturing. These philosophies enhance the possibilities of obtaining excellent quality services and effective, efficient and economical processes, which are some of the benefits that these philosophies have obtained in different industries and sectors of the economy. 

This article presents and disseminates a Lean Six Sigma model that systematically integrates these two methodologies with the DMAIC structure and establishes its own techniques and tools for the improvement of services offered by higher education institutions. The article explains in detail the steps and techniques for each phase of the DMAIC structure and how they interact each other to define clearly a problem in processes that deliveries a service in a higher education institution, measure the impact of the problem presented, analyze the root causes that originates the problem, improve the process and establish controls that assure the sustainability of the improvement actions.