摘要
为了在．Net平台上实现适应多种数据库和易于后期维护和升级的自动组卷系统，采用了多层软件架构及和数据访问层的设计模式，并且应用c#语言实现了系统开发。通过引入三层构架和抽象工厂设计模式，系统能够便捷的切换多种数据库访问，增强了代码的重用性，有效的提高自动组卷系统的开发效率，并且便于后期软件升级。
In order to implement automatic test paper generation system which can adapt to a variety of data - bases and easy maintenance and upgrades in the future, by introducing three -tier architecture and design pattern of abstract factory, the system is developed using C# language. The system is fast and convenient to toggle a variety of data - base access, enhance the reusability of the code, effectively improve the development efficiency of auto- matic test paper generation system and upgrade software later.
出处
《陕西交通职业技术学院学报》
2012年第4期42-46,共5页
Journal of Shaanxi College of Communication Technology
基金
基金项目：中央高校基本科研业务费专项资金（CHD2010ZY012）
关键词
三层架构
软件框架
抽象工厂
自动组卷
three - tier architecture
software frameworks
abstract factory
automat
