基于Web技术的英语网络考试系统的设计与实现.doc -- 5 元

1摘要本论文主要阐述了基于Web技术的英语网络考试系统的设计与实现。在介绍动态网页程序开发和数据访问技术基础上，提出了网络英语考试系统的组成与结构，阐述了系统的设计方案、实现方法以及所采用的开发工具和相关技术，还重点剖析了前台考试部分的程序设计。本考试系统采用B/S模式开发，不需安装客户端，被授权用户通过浏览器即可登录系统，从而开始正常的考试。本系统是基于微软公司的Windows2000操作系统、Internet信息管理器与SQLServer数据库平台构建而成。微软公司产品优异的性能为本系统提供了高效稳定的运行环境，使本系统无论在运行速度、易用性还是在数据吞吐能力方面都表现卓越。本系统采用了以下技术方案保证考试正常稳定的进行。全面的容错处理使考试作业流程得到有序的控制，对用户的误操作能够进行有效的屏蔽在考试过程中，禁止考生刷新浏览器，防止考生误操作导致答案丢失对鼠标右键操作进行限制，保证考试系统用户界面的完整性另外，系统还提供了考试时间倒计时功能，使考生随时了解考试剩余时间。在考试结束前一分钟和最后10秒种，系统会提醒考生注意保存答案，防止答案丢失。考试到时后，如果考生还未提交试卷，系统将自动交卷，保证考试严肃、公正的进行。关键字网络考试系统英语考试WebASP2AbstractThepresentpapermainlyelaboratedbasedontheWebtechnologyEnglishnetworktestsystemdesignandtherealization.Intheintroductiondynamichomepageproceduredevelopmentandinthedataaccessingtechnologybase,proposedthenetworkEnglishtestsystemcompositionandthestructure,elaboratedthesystemdesignproposal,therealizationmethodaswellasusedevelopmentkitandcorrelationtechnology,butalsoanalyzedthepartiallinksprogrammingwithemphasis.HaveanexaminationsystemadoptB/Smodedevelopment,needtoinstallthecustomerendoriginally,authorizeduserstologintothesystemthroughthebrowser,thusbeginthenormalexamination.ThissystemwasstructuredwithSQLServerdatabaseplatformbyaWindows2000operatingsystembasedonMicrosoft,Internetinformationmanagementdevice.TheperformancethattheproductsofMicrosoftareexcellenthasofferedthehighefficientandsteadyrunningenvironmentforthissystemmakethissystemnomatteratthespeed,apttobehavewiththesexorinhandlingcapacityofthedataremarkablyofoperation.Thissystemadoptagreatdealoftechnologicalschemeisithaveanexaminationnormalgoingonsteadytoguarantee.Overallfaulttoleranttreatmentmakeshavinganexaminationandgetsorderlycontrolinprocedureofthehomework,cancarryontheeffectiveshieldingtousersmistakeoperationInthecourseofexamination,forbidexamineestobreakthebrowser,preventtheexaminee3fromoperatingandcausingtheanswertolosebymistakeIsitisitlimittogoontooperatebyrightkeytomouse,isithaveanexaminationsystematicuserintegralityofinterfacetoguaranteeInadditionsystemoffertesttimecountdownfunction,makeexamineeisithaveanexaminationsurplustimetounderstandatanytime.Inexaminationoneminuteandlastonesecondkindbeforefinishing,systemwillremindexamineepayattentiontoanswerofkeeping,preventtheanswerfrombeinglost.Examinationthen,ifexamineesubmitpaperyet,systemhandinanexaminationpaperautomatically,guaranteeitisserioustohaveanexamination,justgoingon.KeyWordsNetworkExamSystem,EnglishExam,Web,andAsp4目录1引言............................................................12绪论.............................................................22.1网络考试系统与B/S结构........................................22.2数据库........................................................22.3数据库访问技术................................................32.4开发平台与开发工具............................................42.4.1系统软件..................................................42.4.2工具软件..................................................42.4.3系统硬件..................................................43系统功能分析与设计...............................................53.1系统构架分析..................................................53.2系统模块与流程说明............................................63.2.1前台部分..................................................63.2.2后台部分..................................................83.3数据的安全与保密..............................................83.4试题设计......................................................93.5数据库设计...................................................104系统实施与测试..................................................134.1前台考试部分.................................................13