Research And Application Of Distributed System Architecture

With the development of the network technology and the enterprise informationization technology, the distributed application system booms. Nowadays, the rapid increase of the enterprise information resource and the frequent change of the business demand result in the more complexity in the application system design. New challenges arise in the application system design, such as the scalability, the reliability and the flexibility. Hence, the global software architecture needs to be focused when doing research and development on such systems. Now development based on software architecture have already become the center of software engineering domain. Opposite in the traditional computation pattern of "the algorithm + construction of data = programme" , pay great attention to the system's analysis and the design based on the software architecture .The architecture of a software system includes business model architecture and technology environment. The layered architecture emphasizes the construction of application system based on layered module, With the principal of layered architecture, this paper proposes the layered method for the Central Radio and TV University(CRTVU)'S education administration system and the Reference Model Architecture is present. This paper also discusses the distributed application system development based on J2EE. Through the development of Central Radio and TV University(CRTVU)'s education administration system based on the J2EE,the paper elaborates how to use the service, provided by the middleware , to simplify the distributed application system development. Meanwhile, in view of the complexity of traditional EJB classical high-weighted architecture, the paper draws the conclusion that this kind of high-weighted architecture, has limitation on the efficiency, the portability, and the flexibility. Hence, the paper proposes the light-weighted architecture, analyzes its kernel by an actual illustration.