Int. J. Cont. Engineering Education and Life-Long Learning, Vol. 17, Nos. 4/5, 2007 381 Copyright © 2007 Inderscience Enterprises Ltd. A method for modelling adaptive interactions in Intelligent Tutoring Systems Luciana B. Frigo* DAS – UFSC, CP 476 Campus Universitário, 88040-900 Florianópolis SC, Brasil E-mail: lu@das.ufsc.br *Corresponding author Janette Cardoso IRIT-UT1, 21 Allées de Brienne, 31042 Toulouse, France E-mail: jcardoso@univ-tlse1.fr Guilherme Bittencourt DAS – UFSC, CP 476 Campus Universitário, 88040-900 Florianópolis SC, Brasil E-mail: gb@das.ufsc.br Abstract: This paper proposes a method to couple the domain, student and pedagogical models in an Intelligent Tutoring System. The goal of the proposed method is to produce a personalised version of the domain model with respect to the student model, without burdening the teacher with the task of specifying how this personalisation is to be done. The pedagogical model is defined through Object Petri Net, whose transitions control the interaction decisions, according to conditions that refer to the student model and feedback. All student model management is automatically included in the pedagogical model by the authoring tool. Keywords: Intelligent Tutoring Systems; ontology; Object Petri Nets; user interaction; adaptive hypermedia systems. Reference to this paper should be made as follows: Frigo, L.B., Cardoso, J. and Bittencourt, G. (2007) ‘A method for modelling adaptive interactions in Intelligent Tutoring Systems’, Int. J. Continuing Engineering Education and Life-Long Learning, Vol. 17, Nos. 4/5, pp.381–391. Biographical notes: Luciana B. Frigo has a Master’s Degree in Electrical Engineering in the area of Intelligent Tutoring Systems and she got her PhD in the same area in 2007, at the Santa Catarina Federal University, Brazil and Paul Sabatier University, France. Janette Cardoso, gained her PhD in 1990 and was Professor at Universidade Federal de Santa Catarina until 1998. She now works on research at the Institut de Recherches en Informatique de Toulouse, teaching at the Computer Science Department of the Université des Sciences Sociales at Toulouse, France.