基于DataSnap的多层网上考试系统分析与设计  

Analysis and Design of Multilayer On-line Examination System on DataSnap

作　　者：张立波[1] 顾金宝[2] 

机构地区：[1]江苏省交通科学研究院,江苏南京211112 [2]化学工业设备质量监督检验中心,江苏南京210024

出　　处：《科技信息》2009年第33期T0083-T0084,共2页Science & Technology Information

摘　　要：随着无纸化考试的广泛普及,网上考试系统的设计日渐成为人们研究的热点。为了提高网上考试系统的效率和安全、健壮性,通过对两层结构和多层结构的比较,文中基于Delphi中的DataSnap技术采用三层结构对考试系统的构成和体系结构进行了分析与设计,并对部分源代码进行了说明,实现了网上考试系统真正的"瘦客户"和增强了系统的安全性。With the wide popularization of paperless examination, the examination system on the Internet is becoming a hot topic. In order to improve the effieieney, security and robustness of the system, this article made a eomparison between three-ply frame and double-deek, and analyzed and designed the constitution and structure of the system with Delphi＇s DataSnap teelanology on three-ply frame. This paper explained part of the souree eode, and realized the real ＇thin elient＇ of the system and improved the security.

关 键 词：多层结构 DATASNAP DELPHI 网上考试 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论] G434[自动化与计算机技术—计算机科学与技术]