Abstract: This work presents part of a result of the doctoral thesis that has been developed a computational tool, called AUXILIAR, designed to improvement of management of the teaching-learning process, to monitor courses, and to redirect the students learning process in online courses. The system shall decrease the teachers’ time and effort to manage the classes and the students learning process, measuring the students learning levels to assure the teaching quality. The system AUXILIAR is composed by two modules. The first one contains an edition, diagramming, and publication tool for online courses, called CONSTRUCTOR. The second one, called REASONING, manages the path followed by each student when exploring the courses contents. It is also responsible to automatically detect and redirect the student, depending on his/her deficiencies, detected by the followed path and by formative evaluations. To achieve this, it uses a Case-Based System which stores, adapts and reuses previous experiences to new situations.