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摘要
本论文主要阐述了计算机等级考试在线自动评分系统的设计与实现。介绍了系统的开
发环境以及开发工具,对于设计思想和设计流程也做出了全面的叙述,在数据库创建思想
以及各个数据表之间的具体关联等方面也做出了详细说明,并且具体剖析了系统各个功能
的实现过程以及详细设计过程,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,在绘制简单系统功能模块图的同时,力求更加清晰地表明设计思想以及对整
个程序设计的规划及具体实现。
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 Windows XP 操作系统、JSP 的开发
技术与 SQL Server 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。
本系统具有多方面特点:系统功能完备,用户使用方便简捷,人性化的用户界面,安
全保密设置齐全,大大减少了操作人员和用户的工作负担,提高了学校的信息化的水平。
关键词:考试系统;数据库;客户端
Abstract
The main thesis NCRE on-line automatic scoring system of design
and implementation . Introduced a system for environment and
development tools, the design concept and design process has also
made a comprehensive narrative, in the database to create ideological
and various data tables specific links between the areas has also
made detailed and specific analysis of the various functions of the
system to achieve process and detailed design process, described the
system design, and implementation method used by the development tools
and related technologies, in drawing a simple system function modules
map at the same time, to more clearly show that the whole design concept
and The planning and design process to achieve concrete.
The examination system using B / S model development, without
having to install client, authorized users can log in through the
browser system and begin a normal examination. The system is based
on Microsoft's Windows XP operating system, JSP technology and the
development of SQL Server database platform built on. Microsoft
products superior performance-based system provides a highly
efficient and stable operating environment, so that the system in
terms of speed, ease of use or in the data throughput capacity of
all excellence.
This system has many features: system fully functional, easy to
use simple user-friendly user interface, complete security settings,
greatly reducing the operators and users of the burden and improve
the school's information technology level.
Keywords: examination system; database; client
目 录
摘要.................................................................................................................................................................................I
ABSTRACT .................................................................................................................................................................II
前言 ................................................................................................................................................................................1
1 项目概述 ..................................................................................................................................................................2
1.1 本课题研究的意义 .............................................................................................................................................2
1.2 系统设计原理.....................................................................................................................................................2
1.3 系统目标 .............................................................................................................................................................3
2 可行性研究 ..............................................................................................................................................................4
2.1 技术可行性.......................................................................................................................................................4
2.2 经济可行性.......................................................................................................................................................4
2.3 操作可行性.......................................................................................................................................................4
2.4 法律可行性.......................................................................................................................................................5
3 需求分析 ..................................................................................................................................................................6
3.1 系统需要解决的主要问题...............................................................................................................................6
3.2 系统具备的基本功能.......................................................................................................................................6
3.3 数据流图...........................................................................................................................................................6
3.4 数据字典...........................................................................................................................................................8
3.4.1 数据存储.....................................................................................................................................................8
3.4.2
数据流
........................................................................................................................................................9
3.4.3
数据处理
..................................................................................................................................................10
4 总体设计 ................................................................................................................................................................11
4.1 概述.................................................................................................................................................................11
4.2 系统功能划分.................................................................................................................................................12
4.2.1
学生考试子系统功能划分
......................................................................................................................12
4.2.2
教师操作子系统功能划分
......................................................................................................................13
4.3 系统功能描述.................................................................................................................................................13
4.3.1
学生考试子系统功能描述
......................................................................................................................13
4.3.2
教师子系统功能描述
..............................................................................................................................14
4.4 数据库概念结构设计.....................................................................................................................................14
4.4.1
各实体属性图如下所示:
......................................................................................................................15
4.4.2
各实体之间的
E-R
图
..............................................................................................................................16
4.4.3
各实体之间的关系总
E-R
图
.............................................................................................................17
4.5 数据库设计 .......................................................................................................................................................17
4.6 安全保密设计.................................................................................................................................................20
4.6.1
登陆用户的安全性
..................................................................................................................................20
4.6.2
数据安全性
..............................................................................................................................................20
5 详细设计 ................................................................................................................................................................21
5.1 概述.................................................................................................................................................................21
5.2 程序流程图.....................................................................................................................................................21
5.3 开发工具介绍 ...................................................................................................................................................22
5.4 管理员后台系统的实施.................................................................................................................................23
5.4.1
登录页面
(login.jsp) .................................................................................................................................23
5.4.2
教师后台管理主页面
..............................................................................................................................25
5.4.3
学生信息管理模块
.............................................................................................................................25
5.4.4
填空题维户模块
.................................................................................................................................27
5.4.5
改错题维护模块
.................................................................................................................................29
5.4.6
选择题维护模块
.................................................................................................................................30
5.4.7
考试时间设定模块
.............................................................................................................................32
5.4.8
考卷信息管理模块
.............................................................................................................................33
5.5 学生子系统的实施.........................................................................................................................................34
6 测试与维护 ..............................................................................................................................................................35
6.1 测试的任务及目标..........................................................................................................................................35
6.1.1
测试的任务
..............................................................................................................................................35
6.1.2
测试的目标
..............................................................................................................................................35
6.2 测试方案.........................................................................................................................................................35
6.2.1
模块测试:
..............................................................................................................................................35
6.2.2
集成测试:
..............................................................................................................................................36
6.2.3
验收测试:
..............................................................................................................................................36
6.2.4
平行运行
..................................................................................................................................................36
6.3 实例测试 ...........................................................................................................................................................37
6.4 系统维护.........................................................................................................................................................37
结束语 ..........................................................................................................................................................................39
致谢 ..............................................................................................................................................................................40
参考文献 ......................................................................................................................................................................41
- 1 -
前言
时光飞逝,一转眼四年的大学生活就要结束了。作为对大学生活学习的总结,毕业论
文就成了最后的一门必修课。提笔之时感慨万千,回顾这几年的大学生活,感情溢于言表。
希望在这最后的大学时光里,能给母校交上一份满意的答卷。
现阶段,学校与社会上的各种考试大都采用传统的考试方式,在此方式下,组织一次
考试至少要经过四个步骤,即人工出卷、考生考试、人工阅卷和试卷分析。显然,随着考
试类型的不断增加及考试要求的不断提高,教师的工作量将会越来越大,其工作也将变成
一件十分繁琐和非常容易出错的事情。可以说传统的考试方式已经不能适应现代考试的需
要。
随着计算机应用及网络技术的迅猛发展,人们迫切要求利用这些技术来进行在线考试,
以减轻教师的工作负担以及提高工作效率、提高考试的质量。从而使考试更趋于公证!客
观!更加激发学生的学习兴趣。为了适应新形势的发展和本次毕业设计的需要,设计了这
套计算机等级考试在线自动评分系统,但由于考试多样性及时间与技术的原因,选取了后
台教师试卷管理及自动评分和前台学生考试模块进行主要课题的实施。希望此考试系统在
真正的考试中发挥高效、便捷的作用。把教师从繁重的工作中解脱出来,并希望能为进行
网络考试的发展进行有益的探索及尝试。
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