This research aims to identify improvements for the Integrated System for Academic Activity Management (SIGAA) based on the main factors that affect user satisfaction with academic information systems. The study presents the structural equations model and importance-performance analysis as a basis for improving system requirements. this research is exploratory and quantitative through the modeling of structural equations. A questionnaire was used to collect data, and the total sample size was 153 people. The results revealed that the most important variables to explain user satisfaction were information quality (30.33%), system quality (21.77%), and perceived benefits (21.61%). Thus, user satisfaction was explained 72.5% by the proposed structural model. The results achieved help improve the university information system. The importance of performance analysis pointed out indicated the priority of actions to be taken, and the mapping of processes presented possibilities of increasing requirements to increase the satisfaction of the system's users.