基于用例驱动和抽象工厂模式的J2EE考试系统设计

The Design of J2EE Exam System Based on Use Case Driven and Abstract Factory Pattern

本文对基于J2EE架构的考试系统进行了UML用例分析,阐述J2EE考试系统实现的通用性原理和设计方法。通过用例驱动,给出一种能够在网络环境下满足考生个性化学习和测试、教师出卷和评卷需求的考试系统用例设计方案。在此方案基础上对考试系统中的组卷模块进行分析,给出了多组卷算法的抽象工厂设计模式。

This paper analyzed the J2EE-based exam system with use case in UML,and elabo-rated the general principle and design method of the realization of this system.Through use case driven,a design scheme of use case of exam system for satisfying examinees＇ demands in personalized learning and test as well as teachers＇ demands in setting and marking paper under network environment was given.On this basis,the model of organizing test paper in the exam system was analyzed,and the abstract factory design pattern of multiple-organizing paper-algo-rithm was put forward.