本文就采用面对对象的方法以UML为建模语言，使用PowerDesigner这个case工具分析设计一个分布式的B/S结构的基于COM+和XML的网络考试系统。并使用Delphi、VBscr ipt、ADO、XML、HTML等编程工具、语言和技术实现了这个系统。-paper on the use of object-oriented approach to UML for modeling language, PowerDesigner use this case a tool for analysis and design of distributed B / S structure of the base COM and XML in the network test system. And the use of Delphi, VBscr ipt, ADO, XML, HTML, and other programming tools, language and technology of this system.