In this article we present the University of Evora's Integrated Information System (SIIUE), which is meant to model most of the information necessary for the management and day-to-day operation of an institution such as a public University. SIIUE is centered around a logicbased representation of all intervenients and processes, which is used to generate the more efficient and specific representations for the actual use. This includes extended SQL, PHP3 and Java code generation. SIIUE also interacts with an etherogenous set of partial information systems, both to supply and collect information.