Resumen en español

This paper presents a proposal for the conceptual modeling of user in ubiquitous environments through agents and ontologies. The integration of these two concepts allows capturing, process, and maintaining user information of pervasive systems. The approach consists of conceptual architecture, types of agents that compose the system, basic structure of each agent and communication strategy. It also presents ontology to model users. Later presents two scenarios of interaction of agents: connection request to the system and sending a query. This proposal solves problems such as lack of standardization in the user modeling of ubiquitous systems and the lack of intelligent component for processing the user’s information to offer personal configurations that depend of the users' profile and preferences.