The objective of this work is to develop a decisional information system for the operation of a model consisting of key stakeholders of the university (teachers, students and administrative). This system is based on the relationship between actors and their activities and their aggregations in a graduate level. It aims to make available to managers of the university a set of dashboards that can improve the quality of education provided. We begin by modeling the actors up and study processes on their own organizations, their activities and their aggregations. We try to answer the question: how to reproduce a set of metadata specific to multidimensional databases specific to universities based on the decision.