Models and tools to take into account evolutivity in learners profiles

If the concept of learners profiles is now well known and treated in various ILE (Interactive Learning Environments), the taking into account of evolution in profiles do not benefit from the same advances. The subject of this paper is to define this notion and to show how it is taken into account en ILE researches. After a definition of the concept of progressive learners profiles illustrated with examples, we show how this concept changes the models of our project, notably PMDL profiles modeling language extended to PMDLe, to take into account the evolutivity of profiles.