In order to improve the system reusage, extensibility, portability, J2EE and MVC model are adopted, and key technic in design and implementation of the system are discussed.

• 然后分析了实现任选课教学系统的必要性和技术可行性,系统采用了J2EE技术和MVC设计模式,以提高系统的可重用性、可扩展性及可移植性等,讨论了任选课教学系统的设计和实现的关键技术。