The Design Of The Network Elective System Based On.net And Implementation

With the implementation of education for all-around development and the credit system, elective course has become an indispensable part of college education. However, with the increasing number of college students, the traditional way of selecting courses has been unable to meet the need of elective teaching. Nowadays, network has become an important tool of teaching work due to its freedom from geographical restrictions, broad distribution and convenience. It can save a lot of human and material resources. Therefore, it is of profound significance for modern teaching.Discussions on the related technologies used, including the Browser/Server network architecture, SQL Server2000database and ASP.NET development platform. Course-selection algorithm is the key technology of network Course Selection System. In the analysis of the common course-selection Algorithm, the system adopts draw algorithm. The algorithm achieved student course selection has nothing to do with the time, in order to ensure the fairness of elective. Pairs of entities active in the system are carried out a detailed needs analysis, given the data flow diagram of various entities, clearly the basic business processes, division of the system’s functional modules, completing the design of database and system security.Discussed in detail throughout the achieved process of the system, including databases and three-tier architecture implementation. Use Transaction-SQL script to build the database at the same time as draw algorithm has the calculation of a large quantity, using stored procedures to implement this algorithm. User interface layer of the three-tier architecture achieve that interaction with the user, and use master pages to ensure the site the appearance of consistency, business logic layer and data access layer are achieved by object-oriented thinking, all the data and methods are used to encapsulate by class, business logic layer dealing mainly with elective business logic, the data access layer provides service for business logic layer and user interface layer.During its tentative practice in schools, network selection system has well received. Now it has been put into trial operation and achieved a great result, which has met the basic needs of all the teaching functions. With the improvement of the system, it will be more used, and it will play an important role in selective courses teaching.