Contributions of Ontology’s and Utilities of Interoperability in E_Learning Systems

E-Learning is an important pedagogical advance, it uses the Web as a support for dissemination of knowledge and interaction between the different actors of E-Learning. Several learning platforms have been developed and several are available on the open access web. Indeed, a learning system using an LMS (Learning Management System), a VLE (Virtual Learning Environment) or equivalent (with a front office and a back office present) is used and must allow to follow the "electronic course" of the learner. These systems are compatible with technical and pedagogical standards of interoperability. Thus, because of the development of computer systems a great disparity of types of hardware and software has appeared. These systems can only interact if they have a common perception of information. This aspect makes it necessary to take into account the interoperability that is also present in the databases. This aspect makes it necessary to take into account the interoperability that is also present in the databases. It consists of acquiring and integrating information, data and services from heterogeneous databases. This heterogeneity occurs for example when databases are implemented by different models, be they relational, hierarchical, etc. Indeed, since these platforms also offer communication tools, assessment tools, and the possibility of depositing educational resources. In this context, ontology’s have a primary role to play as an intelligence enhancer for knowledge sharing and reuse. This thanks to the computer mediation for the dissemination of knowledge between the different actors. In this work, we will focus on the contributions of ontologies for the description of learning preferences by considering the different aspects of interoperability in E-Learning.