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基于网络的信息系统设计

【作者】 刘学文

【导师】 杜清珍;

【作者基本信息】 西北工业大学 , 机械电子工程, 2002, 硕士

【摘要】 本论文研究了基于网络的信息系统设计。在现状和发展趋势的基础上,论文分析了信息系统的总体结构形式。为了实现系统的现有功能并保证灵活性,在系统模式设计上,论文提出采用了C/S和B/S相结合的混合模式。实践证明,采用这种结构,在保证系统的简洁性的同时,大大提高了可扩展性;另外,在系统实现过程中,为提高设计质量,系统将软件工程的方法贯穿于设计始终。论文分析了实施软件工程过程中各阶段的任务,并给出了在各阶段设计内容事例,为将软件工程有效地应用于信息系统的设计过程提供了思路。 在系统设计中采用了先进的面向对象建模技术。采用ERWin和Visio作为开发工具,在提高设计效率的同时,大大提高了系统的可维护性,便于二次开发;同时,针对一般信息系统报表功能比较固定的不足,为提高系统的功能灵活性,采用面向对象技术,实现了用户后期报表格式的自由设计,并允许将用户已设计的报表存储成模板形式,这也大大提高了系统的灵活性;论文还着重论述了在系统设计中所涉及到的课程表安排问题,提出采用基于人工预分配规则和智能化搜索结合的实现方式,给出了所用算法流程,有效地解决了该问题。最后论文讨论了信息系统的安全性问题,提出分层的安全模型。论文同时论述了系统在设计过程中涉及到的其他一些关键性的技术问题:如异构数据库集成技术、数据库访问技术等; 本论文来源于新疆师范大学校园网应用软件系统,并已实现了教学管理系统、研究生管理系统、设备管理系统三个系统,目前三个系统运行良好。

【Abstract】 This paper studies the design of information system which bases onintranet. According to the situation and the development trend of information system.it analyses the overall structure of information system.It adopts the scheme that combines the C/S(Client/Server) to B/S(Brower/Server).As the result,conciseness and augmentability are reached; Also,technology of software engineering is applied in the design.All the tasks of the several phases of software engineering are shown in the paper, while many examples illustrated.The technology of softwareware engineering will greatly improve the qulity of design.The advanced modeling technology including modeling tools such as ERWin and Visio is also adopted in design,which improving not only efficiency in work but also the systemic maintenance.In order to solve the fault in designing in report, OO(Orient-Object) technology is applied.Therefore,it comes true for user to freely design report. And user can save the report designed as model for later use, which improving the flexibility.Also,this paper puts forward a new way that combining the artifical rule preassigned to intellective search to solve problem of timetabling.There is more,security of information system is dicussed.And the idea of layer security model is developed. At last,much other key technology is dicussed,such as database integration, technology access to database etc.This paper originates from practical project in which the applied software is accomplished for Xinjiang Nomal University.Teching management information system, post-graduate management information system and equipment management information system are realized about this paper.Now these systems work well.

  • 【分类号】TP393.09
  • 【被引频次】5
  • 【下载频次】157
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