通过调研目前教学管理系统中的成绩管理子系统，了解成绩管理子系统的业务流程；通过分析比较，结合用户对成绩管理子系统的改进意见与实现情况，运用面向对象思想方法，设计和实现一个满足功能和性能，并有所创新的成绩管理子系统，以提高成绩管理的自动化、友好性等。本系统基于.NET平台和SQL Server数据库，通过毕业设计，可以使学生对.NET结构下开发B/S模式的分布式三层数据库系统有一个全面的了解。(Through the investigation of the performance management subsystem in the current teaching management system, the business process of the achievement management subsystem is understood. Through the analysis and comparison, and by combining the user's improvement opinion and Realization of the performance management subsystem, the object oriented thought method is used to design and implement a satisfying function and performance, and some innovation is made. Performance management subsystem to improve the automation and friendliness of performance management. This system is based on.NET platform and SQL Server database, and through graduation design, students can have a comprehensive understanding of the distributed three layer database system of developing B/S mode under the structure of.NET.)