Research And Design Of E-Learning System Based On Technology Of CORBA

With the development of the computer and network technology, the degree of information society is higher and higher; information technology is gradually penetrated into all fields. The vigorous development of E-Learning is a good example. E-Learning can be referred to as online learning or network learning, that is, establishing an internet platform in the field of education, it is a new way of learning for students through the network. This approach can fully mobilize the initiative of students, and can carry out better quality education, in line with the requirements of the education forms in a new era.However, the current E-Learning systems are usually isolated and scattered and its structure is basically Client/Server model. Education resources can't be separated from the display. It is negative to the information inquiries and transfers. The advantage of using the CORBA technology in the E-Learning system is that it can not only solve"solitary island"problem because of the isomerism of heterogeneous levels, but also extends the Client/Server model in theory and implementation, making the system a good scalability, easy to the system development and upgrading.In this paper, we mainly aims at the defects existed in the current E-Learning system, uses the CORBA technology to build three-tier architecture of E-Learning system. The main contents are included as following:1. Systematic and comprehensive introduction to E-Learning system and the development status and future trends at home and abroad are discussed, the importance of the CORBA technology in the E-Learning is pointed out.2. The paper's expansion and its theoretical foundation are obtained by the description and explanation establishing related technologies about E-Learning system.3. The system adopts CORBA-based middleware technology, and information integration issue of heterogeneous data source can be solved, there form users can access information transparently, without knowing what software the information exists in, what hardware platform to use and where in the network.4. The general framework of E-Learning system has been constructed that get over the current shortcoming of E-Learning system, the reality of E-Learning system need, and the database system, technical strategy are analyzed.5. Finally, the paper research work is summarized, some ideas about further implementation and improvement of the system in the future work are proposed.