In this paper, we focus on user assistance in an interactive and adaptive system. The increase in production of digital data, these last two years has raised several issues regarding the management of heterogeneous and multiple source data in the user's environment. One distinctive feature of user assistance is the user model that represents essential information about each user. We propose a modeling of a scien-tific user, who is a researcher, in a personal resource management system. Our methodology is based on the IMS-LIP standard extension and the user's trace management. Our work can assist users in the consolidated management of their resources and their environment, based on the user's profile. Experimental results obtained by the emperical evaluation in our laboratory are presented.