Ontology Based Sharing and Services in E-Learning Repository

Although some metadata standards such as LOM and Dublin Core are defined to offer the base and guarantee for education information sharing, there are still some shortcomings in e-leaming domain, the main one being their exclusive focus on property based specifications. Semantic Web technologies allow us to enhance these specifications using classes of objects with common attributes. Another shortcoming of the standards is that they do not include any domain ontologies - which again can be specified building on semantic Web formalisms. We try to explore the e-learning repository and learner top layer ontology in our work. Based on the domain ontology, the algorithm of e-learning resource semantic query is analyzed. Some SWRL rules are defined, so that new knowledge can be deducted from OWL knowledge database. The architecture of our learning repository is also described. Our practice indicate that some intelligent and personalization services in e-learning can be achieved by using ontology and semantic web technology.