In an E-learning scenario, educational resources, such as course documents, videos, test-bases, courseware, and teacher information etc., are needed to be shared across different schools. DartGrid is a semantic grid toolkit for data integration using technologies from Semantic Web and Grid. In this paper, a Semantic Grid for E-leaning based on DartGrid is introduced, and it provides a Semantic-based distributed infrastructure for E-learning data resource sharing. We explore the essential and fundamental roles played by RDF semantics for E-learning. We also introduce a set of semantically enabled tools and grid services for E-learning such as semantic browser, ontology service, semantic query service, and semantic registration service.
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