(a) the problem is defined more precisely, (b) the OBOA model from which the GET-BITS model has come out is discussed, (c) the main ideas of the GET-BITS model are described, (d) we show how this model of ITSs is used in developing a practical ITS, and (e) we state the advantages of the GET-BITS model, as well as the possibilities for its further development.
Starting from a general, object-oriented model of intelligent systems (in this case, the OBOA model), it is possible to derive the model of any more specific kind of intelligent systems.
How the GET-BITS model is derived as a specific extension of the OBOA model.
The essence of the OBOA model is a unified abstraction of different knowledge representation techniques and different models of human knowledge (Devedzic & Radovic, 1999).
Applying the principles of the OBOA model, we can define appropriate class hierarchies for developing ITSs.