DELPHI网络考试系统 毕业论文.doc

摘要软件工程在现代软件开发中的作用越来越大,并且发展出了很多行之有效的软件工程方法和建模语言。 UML ( Unified Modeling Language , 统一建模语言) 是一种非常流行的,支持面对对象建模方法的建模语言。到今天 UML 差不多已经成为建模语言的事实标准。本文就采用面对对象的方法以 UML 为建模语言, 使用 PowerDesigne r这个 cas e 工具分析设计一个分布式的 B/S 结构的基+ 和 XML 的网络考试系统。并使用 Delphi 、 VBScript 、 ADO 、 XML 、 HTML 等编程工具、语言和技术实现了这个系统。关键词: + Delphi ASP ADO XML Abstract S oftware E ngineering is increasingly important in then modern software develop ment. Today there are many functions and many software engineering methods . The UML (Unified Modeling Language) isone of they. In addition, it’sa popular and O bject- O riented based model language. The UML has almost been the international standard of model language. Using O bject- O riented Model and UML by case tools of PowerDesigner, the paper designs a distributed B/S constructed online test system, which is based + and XML. In order to realize the system a lots of tools and program language s are used, such as Delphi, VBScript, ADO, XML, and HTML etc. Key Words : + Delphi ASP ADO XML 目录 ······················································································ 4 ······················································································ 4 . 系统目标··········································································· 4 . 可行性分析········································································ 4 . 现有的数据库应用程序的分层结构···································· 4 . 传统二层结构····················································· 4 . 三层数据库应用结构············································ 5 . 多层分布式数据库系统········································· 5 . 网络分布式多层应用系统················································ 6 . XML 语言···································································· 7 . 本系统的方案选择······························································· 7 . 建模工具的选择·································································· 7 UML 的系统分析··············································