“…It is only during these last years that we attend the appearance of some techniques proposing a rather complete modeling of the users, and so offering them a more adapted customization to their profiles. These techniques integrate several criteria as the user preferences [12,16,18], his/her psychology [16][17][18] [32][33][34], his/her cognitive properties [9,14,16,17], his/her visual and hearing capacities [31], the context of the customization [2,9,23,30,31], the properties of the used equipment [30][31], etc.…”