Information System Framework Design Based On Software Reuse

With the rapid development of the information technology in modern society, to manage and use the information is now going deep into the people's life. People can not manage information without information system. The basic aim of information system is to manage and use the information using information technology. However, it takes long time to develop an information system using conventional method that is complex and the operation which information system can handle is stable. So it can not adapt to the requirement that the information system should manage the information in time.Software reuse is more regarded by people these years. It is an important approach to improve the software productivity and resolve the software crisis. Software reuse is a process and the basic principle of software reuse is simple. It constructs software with the reusable components produced before. The reusable components include object class, framework and architecture etc.In this paper, the information system framework based on software reuse is researched. Information system and the conventional development method are firstly introduced, and then the software reuse theory. Because of the shortage of the conventional development method, the layer primary key model is proposed that is based on the relation model and object-oriented thinking. This model has stable structure to help the developer achieving software reuse. In succession, the design method on information system framework which is based on the layer primary key model is brought forward while using the technology in existence. There is a new information system development method in this paper. It is that designing an information system framework firstly and developing information system based on the framework. This method has many excellences, such as simple development, better maintainability, better managing, strong retroactivity etc. At last it takes an education information system as example using the method to develop the information system.