Abstract
Over the past years, information personalization has provided several valuable achievements on the improvement and optimization of Web searching and recommendation taking into account user's interests, preferences and contextual information. The main objective of a personalization system is to perform an information retrieval process taking into account the perception and the interest of the end-users. This paper focuses on how to model the user and his context in an extensible way that can be interpreted and used for personalization. We describe the architecture that provides personalization facilities based on the contextual user model for tourism usage(1).