The study of service oriented architecture of E-learning resources and personalized service model

This paper puts forward the concept of service oriented architecture of learning resources, divides learning resources into three levels that include basic layer, special layer and application layer, and builds service oriented architecture of E-learning resources with a directed graph structure data model to realize the resources dynamic organization for different objects or aims of services. Then on this condition, this paper also presents an e-learning resources personalized service model to improve the performance and flexibility of e-learning resources sharing through the Internet.