A Model of Reusable Educational Components for the Generation of Adaptative Courses

In the last few years the problem of developing sequencing of course material has become an important research issue, particularly the standardization of metadata for educational resources. Our work aims at providing an environment of authoring and presentation of pedagogical multimedia contents adapted to the end-user. This environment must increase the productivity of the teacher by supporting the reuse of contents already developed in other contexts (by him/her or others). This goal is achieved by means of a model of educational components. In this paper, we define a set of operators used to build courses by assembly of components. The courses thus defined are then instantiated for each learner according to his/her profile. To classify component our approach uses an ontology to describe the domain model, where each node represents a concept. There exists several kinds of hierarchical and rhetorical relationships between concepts in the domain model.