B. Wasson, Instructional Planning and Contemporary Theories of Learning, 1996.

R. Nkambou, R. Gauthier, and C. Frasson, CREAM-tools: An authoring environment for curriculum and course building in an ITS, Proc. of the 3d Int'l Conf. on CAL & Inst'l Sc. & Eng, 1996.

J. Kay, Accretion Representation for Scrutable Student Modelling, Proc. ITS'2000, pp.514-523, 2000.
DOI : 10.1007/3-540-45108-0_55

G. Mccalla, J. Vassileva, J. Greer, and S. Bull, Active Learner Modeling, Proc. ITS'2000, pp.53-62, 2000.

P. Goodyear, Teaching Knowledge and Intelligent Tutoring, 1991.

M. Granbastien, Teaching Expertise is at the Core of ITS Research, pp.335-349, 1999.

M. Baker, The roles of models in AIED research: a prospective view, IJAIED, vol.11, issue.2, pp.122-143, 2000.

S. Katz, G. O-'donnell, and H. Kay, An approach to analyzing the role and structure of reflective dialogue, pp.320-343, 2000.
URL : https://hal.archives-ouvertes.fr/hal-00197333

S. P. Lajoie, S. Faremo, and J. Wiseman, Identifying human tutoring strategies for effective instruction in internal medicine. IJAIED, Special Issue on Modelling Teaching, 2001.

J. Andriessen and J. Sandberg, Where is education heading and how about AI? IJAIED, pp.130-150, 1999.

P. Brusilovsky, Course Sequencing for Static Courses? Applying ITS Techniques in Large-Scale Web-Based Education, Proc. ITS'2000, pp.625-634, 2000.
DOI : 10.1007/3-540-45108-0_66

R. Mizoguchi and J. Bourdeau, Using Ontological Engineering to Overcome Common AI-ED Problems, IJAIED, Special Issue on AIED, vol.11, pp.107-121, 2000.
URL : https://hal.archives-ouvertes.fr/hal-00190087

T. Murray, Authoring intelligent tutoring systems: an analysis of the state of the art, IJAIED, vol.10, pp.98-129, 1999.
URL : https://hal.archives-ouvertes.fr/hal-00197339

D. Merrill, An integrated model for automating instructional design and delivery Automating Instructional Design: Concepts and Issues, 1993.

M. Spector, P. Polson, and D. Muraida, Automating Instructional Design: Concepts and Issues, 1993.

R. Tennyson, A. Barron, and . Eds, Automating Instructional Design: Computer- Based Development and Delivery Tools, NATO ASI Series, Series F: Computer and Systems Sciences, 1995.
DOI : 10.1007/978-3-642-57821-2

G. Paquette, Telelearning Systems Engineering ?Towards a New ISD Model, Jl of Structural Learning and Intelligent Systems, pp.319-154, 2001.

R. Mizoguchi and K. Sinitsa, Architectures and Methods for Designing Cost- Effective and Reusable ITSs, Proc. ITS'96, pp.1-21, 1996.

M. Ikeda, K. Seta, and R. Mizoguchi, Task Ontology Makes It Easier To Use AuthoringTools, Proc. of IJCAI-97, pp.342-347, 1997.

W. Chen, Y. Hayashi, L. Kin, M. Ikeda, and R. Mizoguchi, Ontological Issues in an Intelligent Authoring Tool, Proc. of ICCE'98, pp.41-50, 1998.

D. Wiley, Instructional Use of Learning Objects, 2001.

M. Jones, Instructional Systems Need Instructional Theory: Comments on a Truism. Paper presented at the NATO Research Workshop "New Directions in Education Technology, 1988.

R. Mayer, Learners as information processors: Legacies and limitations of educational psychology's second.., Educational Psychologist, vol.31, issue.3-4, pp.151-161, 1997.
DOI : 10.1080/00461520.1996.9653263

B. Seels and R. Richey, Instructional Technology: The Definition and Domains of the Field, 2001.

H. Simon, The Sciences of the Artificial, 1969.

A. Gibbons, The Practice of Instructional Technology, p.48, 2000.

D. Merrill, Instructional Design Theories, 1994.

G. Kearsley, Explorations in Learning & Instruction: The Theory Into Practice Database

P. A. Ertmer and T. J. Newby, Behaviorism, Cognitivism, Constructivism: Comparing Critical Features from an Instructional Design Perspective, Performance Improvement Quarterly, vol.2, issue.9, pp.50-70, 1993.
DOI : 10.1111/j.1937-8327.1993.tb00605.x

. Credits, This work was supported by ISIR, Osaka University, where the first author spent a three month invited stay, 2001.