Research On Education Resource Integration Model Based On Ontology And Key Technologies Implementation Of Education Resource Database

Over the traditional management of educational resource, educational resource is lack of a unified description, and users are difficult to find the resources they needed, and it is difficult to integrate related resources. The integration model of educational resources based on ontology can provide rules, universal description methods, query tools and storage strategies for all kinds of information resources; also it can provide integration tools and ties for distributed information systems composed of many kinds of resources. The construction of education resource database based on ontology-based integration model will promote education informatization reformation, and it will be an important milestone of the construction of digital campus.This paper firstly introduces the basis of ontology and semantic web; then the paper describes learning objects, educational resources and learning object metadata, and describes the basic knowledge of the integration model; after the two national standards put forward, the paper presents the integration model of educational resources based on ontology. The integration model concludes five main parts:portal module, storage module, interoperation module, query module and the verification module. This paper describes each module from the structure, function and work process, so that every detail of the model is described clearly; The paper finally realize the key technologies of integration model of education resource based on ontology:ontology construction of education resources, ontology-based knowledge reasoning technologies and ontology-based semantic retrieval technologies of educational resources. Those technologies make the way for the contraction of educational resource database.In accordance with the objectives of this paper, the main work conclude two parts:one is to construct the integration model of educational resources based on ontology, including the structure, function and work process of various modules. The other is the implementation of key technologies to construct ontology-based education resource database. There are several innovations in this paper, including using ontology to manage privileges, designing verification module to ensure the security of resources in the integration model of resource consciously, using layers theory in the interoperation module and the separated implementation of the reasoning function.