Creation of on-line courses using existing e-learning objects

The search of a specific topic in Internet provides a lot of information and much of this information has a didactic structure. However, the found "learning objects" cannot easily be reused for the creation of a new didactic work because they are usually proposed without information on their aims and the typology of users which they are destined to. Moreover, the contents are not clearly synthesized so that the reading of the whole object is often necessary to identify them. The use of Internet for the creation of a new didactic work often means just a recompilation of already existing objects using the "cut&paste" widespread practice. As a consequence, the information about the same topic is multiplied and the net is mainly used as a deposit. The action of the collective intelligence is thus only limited to archive querying and not to a real cooperation among users. We wonder whether the multiplication of information can be avoided and the collective intelligence be directed towards an optimal use of the existing information. The aim of this work is to look for a positive answer to such a question by identifying the theories, the techniques and the adequate tools for the development of a system that, through automatic extraction of learning object features, allows creation of on-line courses using existing learning objects.