A Proposal to Support an Adaptive Hypermedia System through a Multiagent System David MÉRIDA*, Mario CANNATARO+, Ramón FABREGAT* , Carlos ARTEAGA*, Pierangelo VELTRI+ * Universitat de Girona - Spain { david.merida, ramon.fabregat, carlos.arteaga}@udg.es + Univ. "Magna Græcia" of Catanzaro - Italy {cannataro, veltri}@unicz.it Abstract. The heterogeneity problem (in terms of different types of access devices, bandwidth of the network, preferences/characteristics of the user, etc.) has become one of the major problems to be solved on the Internet. Different alternatives have been developed in order to allow universal access to any type of content, and the Adaptive Hypermedia Systems (AHS) have emerged as a solution for this. At the same time there is a growing interest in Multiagent Systems (MAS), which have become one of the most powerful software engineering approaches to develop applications in multiple and complex domains. Taking into account this problem, we present a design proposal for a MAS for an AHS applying the well-known GAIA methodology. Furthermore, in order to complement the conceptual definition we graphically represent the proposed MAS using Agent UML (AUML) notation. Keywords. Multiagent Systems, Adaptive Hypermedia Systems. Introduction In the last years, there has been a growing interest in systems composed of interacting autonomous agents, the Multiagent Systems (MAS), and they are considered to be a promising software engineering approach to develop applications in multiple and complex domains. At the present, one of these domains, which can be considered with MAS, is the heterogeneity problem of the Internet. Heterogeneity in terms of types and capacities of access devices, bandwidth of the network, preferences/characteristics of the users, connections types, which are not taken into account by a server when providing web contents which are rich in images, audio and video. The lack of a good infrastructure to handle this heterogeneous growing has outlined a new objective: the necessity of generating mechanisms so that any user has universal access to the information through the Internet. In line with this, the concept of Adaptation has been widely investigated in the field of hypermedia systems [1][2][3], and it has been shown that in these areas it can provide better environments and performance. There are many groups dedicated to the task of