Designing Of The Class Selection System And Research Of System Performance Optimization

The actualization of credit system is one of important measure which is adopted in the reform of the teaching governance in the university; it will improve the quality of education and set forward the reform of advanced education. Course-selection regulation is the precondition and foundation of the credit system, and is also the elementary character in the teaching strategy of the credit system. Complete credit system is one of education innovation trends, and its core is complete course-selection regulation.For comprehensive university, with the rapid expanding of students, classes, specialties, the course-selection information increased greatly. It is difficult to implement complete course-selection. So it is necessary to design and develop a course-selection system to assist the implement of complete course-selection regulation. This system need to be based on complete credit system, and can undertake the pressure of course-selection activity in comprehensive university. The main research innovations and contributions are summarized as follows:1,We make a deep research into complete course-selection regulation, get the abstraction of course-selection activity, analyze the three entities: Student, course and teacher and their relation, give the data model of course-selection system. Make sure the object and flow of course-selection system, analyze and explain the model partition, key function design and the construction of database.2,According to the character of complete course-selection regulation and the condition of comprehensive university, we make a deep research of complexity of course-selection system, and analyze the performance problem which the complexity bring. It is multilateral for the system performance problem, including course-selection strategy, system design, development technology, system configuration and so on.3,For solving performance problem, we bring the multi-level performance optimization scheme. On the analysis of system requirements, we regulate the strategy of course-selection; optimize the system design; reduce the data process concentration. On the technical side, optimize the front-level query, database design. Bring in database connection pool to improve connection management. Take multi-level data caching to make a practical separated procession of course-selection activity. After one year's application in Xiamen University, it shows that this system meets the requirements of the complete credit system, is able to take the pressure of course-selection in comprehensive university, and meets both functional and performance requirements.