Research And Design On XML-based And Personalized E-learning System

Applications of multimedia technology and network technology in education domain have brought profound revolutions to patterns, methods and means of education. As a new form of education pattern, network education (E-learning) begins to be widely applied. E-learning is a new pattern which combines modern information technology and teaching theory, and is built on network environment. Learners can study in a virtual classroom. E-learning breaks the time and regional limitation by fully using different kinds of education resources for teaching activity.However, standards for resource organization are not unified and personalized is simplified in the current E-learning system. So the sharing and reusing of resources becomes difficult. A solution for personalized E-learning system is presented on the basis of three related stands. The solution consists of three main components: resource repository design, learner model design and teaching reasoning design.(1) The Design of Educational Resource RepositoryEducational resource repository is the fundamental part in the E-learning system, which supports the classification, organization, mark and packaging of the educational resources. This design is based on the learning object theory of ADL (Advanced Distributed Learning Initiative). Referring to the Content Aggregation model of ADL SCORM, the method for resource organization is presented. Referring to the Chinese metadata model of educational resource, the method for resource mark is presented. Referring to the content packaging specification of IMS, the method for resource packaging is presented. Based on the three kinds of standards, analysis and designs of resource organization are presented. In this thesis XML Schema definition of metadata model and the list of resource content are presented as the result of work.(2) The Design of Learner ModelLearner model can provide important information related with learning for the personalized teaching system. Establishing a sharable and dynamic learner model can strengthen mutually operation of E-learning systems, raise the share of data and cut down needless repetition, and it can provide scientific basis for personalized teaching. In this thesis the model of learner is presented consisting of static information, dynamic information, steady information and examination information. The XML Schema definition of learner model is presented as the result of work.(3) The Design of Teaching ReasoningTeaching reasoning mainly consists of Learning Sequence Generation Algorithm. In this thesis the method for the generation of learning sequence is presented based on the Interpretative Structural Modeling Method of IMS.The purpose of this study is to provide a method and a bais for the realization of a personalized E-learning system ,meet the requirements of the developing E-learning system.