基于UML C/S架构考试系统业务处理层设计与实现

A Design and Realization of Business of the Bussiness Processing Layer in the C/S Architecture Exanination System Baed on Uml

按面向对象的方法分析、设计并实现该系统,采用UML(Un ified Modeling Language)进行建模,RationalRose绘制本系统在各阶段的UML图形.用M IDAS,DCOM技术,实现3层C/S架构考试系统中的业务处理层,完成表示层和数据层的交互.采用随机化启发式搜索法抽题组卷,空间开销不大,时间效率高,组卷成功率高.

According to the analytic methods of the Object-Orientod, the examination system was analyzed,designed and realized by employed Unified Modeling Language（UML） for modeling. Rational Rose was used to draw the system diagrams of UML in each stage. Employed the technique of MIDAS and DCOM, the business processing layer in the examination system with the architecture of three layer C/S was realized and the interaction between presentation layer and data layer was completed t. The results indicate that use of heuristic search method at random to take out questions and combine papers has the features of small space expense, high time efficiency, and high success rate.