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Exchanging learning resources in an Open and Managed Environment

Verônica Pimentel de SousaGérard HebuterneNazim Agoulmine

This paper discusses the interoperability among tele-training plat-forms based on a federate model. Educational institutions form a partnership and enable sharing information and data about pedagogical material among users, for the purpose of reusing, adapting and learning new contents. Our goal is to create a virtual community for the exchange of learning resources', to favor the sharing of learning resources and facilitate the searching and retrieval for teachers and students in a wide, democratic, easy and seamless way, what will improve efficiency and reduce the cost of educational institutions. The implementation of this open model must enable different educational institutions to be able to exchange their local learning resources regardless of the architecture of the their tele-training platforms and independently of the authoring tools used to build them. We also propose a way to manage exchanges by combining both HTML and XML technologies in order to overcome semantic and syntactic problems between materials. Thus, a common catalogue with agreed metadata represented in XML has been defined to structure the learning resources in such a way they could be searched, found and interpreted according to the context and agreements accomplished among the partners. The defined environment is called ENREDO (Environnement et Reseau pour l'Education à Distance et Ouvert). It represents a federate model for an open environment and enables learning systems interoperability by a metadata catalogue, which integrates all information about learning resources available in the educational institutions. The ENREDO management reposes over a business model. An application of this model is nowadays conducted within the educational environment established by the three technological institutions of the state of Ceara: Cefet-Ce, the Decentralized Unit of Juazeiro and the Decentralized Unit of Cedro. As the management of such a system is complex, some aspects of management will be observed during the actual application of ENREDO, such as: the requirement for providing an infrastructure based on the establishment of roles, on dynamic creation of new services and on the flexibility for evolution and adaptation of the system. These aspects are important in order to guarantee the safe exchange of the learning resources and their up-grading, integrity and coherence. Clique no link abaixo para buscar o texto completo deste trabalho na Web: Buscar na Web

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