医学多媒体在线考试系统的设计与实现
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摘要
目前,许多学校的考试已经由传统的笔试转变为采用计算机考试系统进行考试。采用计算机考试与传统的笔试相比,有很多优势,可以省去试卷印刷的费用,减轻教师阅卷的负担,提高工作效率等等。为充分发挥计算机在信息处理方面的优势,以及根据医学院校的实际需要,本人开发了医学多媒体在线考试系统。
医学多媒体在线考试系统采用SQL Server 2000数据库和Delphi进行开发,对多个功能模块进行了设计,并对有关技术进行了论述和运用,包括DCOM技术,MD5加密算法,多媒体传输,事务处理,正态性检验。本系统实现了随机抽题、系统自动判卷、试题管理、用户管理、分数管理等功能,尤其在传统文本型考试的基础上,增加了多媒体题型的功能,使医学生有一个感性直观的认识和理解,适合医学考试的特点。
本文分为两部分,第一部分阐述了医学多媒体在线考试系统的设计必须考虑的问题,包括考试系统的体系结构,组成部分,功能模块和系统界面。第二部分阐述了关键技术和难点的解决。特别是对考试系统中的多媒体文件如何上传和下载进行了详细的论述。本系统的多媒体传输部分采取FTP方式,利用Indy组件库中的相关组件来实现所需功能。
经过测试,本系统性能稳定,符合医学考试的特点,能取得预期的效果。因此,医学多媒体在线考试系统的设计与实现,在医学领域考试中具有重要意义和实用价值。
Today, many school' s have converted their testing methods from paper tests to computer tests. Computer testing has advantages over traditional paper testing methods. Computer-administered tests save printing and paper costs, lighten teacher's trouble and improve efficiency. Taking advantage of computer information analysis, catering to a medical university 's needs and and the like, I developed a medical multimedia online test system.
Medical Multimedia On-line the test system was developed using SQL Server 2000 database and Delphi software. Several functional modules were designed. This paper discusses some technologies of the system including DCOM, MD5, multimedia transmission, transaction processing, and normal test. The test system supports many functions, such as: automatic exam scoring, simultaneous testing students, random selection of test questions, administration of test questions, administration of users, administration of scores and so forth. Especially on the basis of the traditional textless exam, it added multimedia functions (video, audio, picture). It is very fit for medicine test.
The paper includes two parts: the first part illustrated some problems that must be consider for design a medical multimedia online test system, including architecture of the test system, a compositional part, functional modules, and system interface. The second part illustrated important technologies and difficulty resolutions, especially how to upload and download a mutimedia file of the system. It introduced FTP fashion for this way.
An evaluation of the testing system showed that the program was stable, and met the university's needs for a computerized medical examination. The system is ready to be deployed for regular use.
医学多媒体在线考试系统采用SQL Server 2000数据库和Delphi进行开发,对多个功能模块进行了设计,并对有关技术进行了论述和运用,包括DCOM技术,MD5加密算法,多媒体传输,事务处理,正态性检验。本系统实现了随机抽题、系统自动判卷、试题管理、用户管理、分数管理等功能,尤其在传统文本型考试的基础上,增加了多媒体题型的功能,使医学生有一个感性直观的认识和理解,适合医学考试的特点。
本文分为两部分,第一部分阐述了医学多媒体在线考试系统的设计必须考虑的问题,包括考试系统的体系结构,组成部分,功能模块和系统界面。第二部分阐述了关键技术和难点的解决。特别是对考试系统中的多媒体文件如何上传和下载进行了详细的论述。本系统的多媒体传输部分采取FTP方式,利用Indy组件库中的相关组件来实现所需功能。
经过测试,本系统性能稳定,符合医学考试的特点,能取得预期的效果。因此,医学多媒体在线考试系统的设计与实现,在医学领域考试中具有重要意义和实用价值。
Today, many school' s have converted their testing methods from paper tests to computer tests. Computer testing has advantages over traditional paper testing methods. Computer-administered tests save printing and paper costs, lighten teacher's trouble and improve efficiency. Taking advantage of computer information analysis, catering to a medical university 's needs and and the like, I developed a medical multimedia online test system.
Medical Multimedia On-line the test system was developed using SQL Server 2000 database and Delphi software. Several functional modules were designed. This paper discusses some technologies of the system including DCOM, MD5, multimedia transmission, transaction processing, and normal test. The test system supports many functions, such as: automatic exam scoring, simultaneous testing students, random selection of test questions, administration of test questions, administration of users, administration of scores and so forth. Especially on the basis of the traditional textless exam, it added multimedia functions (video, audio, picture). It is very fit for medicine test.
The paper includes two parts: the first part illustrated some problems that must be consider for design a medical multimedia online test system, including architecture of the test system, a compositional part, functional modules, and system interface. The second part illustrated important technologies and difficulty resolutions, especially how to upload and download a mutimedia file of the system. It introduced FTP fashion for this way.
An evaluation of the testing system showed that the program was stable, and met the university's needs for a computerized medical examination. The system is ready to be deployed for regular use.
引文
1.陈士杰,通用的计算机考试系统的设计,复旦大学君政学者论文集,2002
2.李跃华,曹大林,丁浩,基于 B/ S 结构考试系统的设计与实现,2005(4)3:73-76
3.李一宁, 汪泉弟, 何为,基于 C/S 和 B/S 混合模式的电能管理信息系统,2003(26)6:56-60
4.毛根生,单文,分布式多层 MIS 系统在 DELPHI 中的实现,计算机应用研究,2001,(18)5:94-96
5.Navid Khosravi, Farshid Zaker, Mohammad Bakuii Katrimi, Ahmad Zarei, Ali Kamandi,An approach to building model driven enterprise systems in Nebras Enterprise Framework,Companion of the 17th annual ACM SIGPLAN conference on Object–oriented programming, systems, languages, and applications,Nov. 2002
6.Steven Teixeira, Xaier Pacheco, Delphi 7 开发人员指南,机械工业出版社,2004
7.毛根生,单文,分布式多层 MIS 系统在 DELPHI 中的实现,计算机应用研究,2001,(18)5:94-96
8.彭文波,MD5 算法原理及应用,信息网络安全,2004,5:137-139
9.Chad Z. Hower a.k.a Kudzu,Hadi Hariri,Indy in Depth,Cyprus Atozed Software,2005
10.张瑞昌,向世勇,赵嵩正,Delphi/SQL Server 事务处理编程技术,计算机应用研究,2004, 21(12):249-250
11.杨树勤,卫生统计学(第 3 版),人民卫生出版社,1999 年 6 月:35-37
12.郭祖超主编,医用数理统计方法(第三版),人民卫生出版社,1988
13.Gan.F.F,Koehler.K.J,Goodness-of-fit Test Based on P.P Probability Plots,Technometrics,1990:32(3
1、 Lúcio Cunha Tinoco,Online Evaluation in WWW-based Courseware:The QUIZIT System, Publisher: Virginia Polytechnic Institute and State University Published,Jan 1996
2、 Hammoud MM, Barclay ML. Acad Med.,Development of a Web-based question database for students' self-assessment. Sep 2002:925
3、David Arnow,Oleg Barshay,On-line Programming Examinations Using WebToTeach,Proceedings of the 4th annual SIGCSE/SIGCUE ITiCSE conference on Innovation and technology in computer science education,Porland,1999 Jun
4、于海昌,于殿昌,基于 B/S 模式的网上考试系统,信息技术,2004,28(5):88-90
5、 林成华,金敏,智能化远程考试系统的研究与实践,现代教育技术,2003,13(3):29-33
6 、 D.B.Barsky and A.V.Shafarenko, WWW and Java-based distributed examination system for distance learning applications, Aizu International Symposium on Parallel Algorithms/Architecture Synthesis, 1997,pp.356-363
7 、 Yuan Zhenming,Zhang Ling,Zhan Guohua, A Novel Web-based Online Examination System For Computer Science Education, 33rd ASEE/IEEE Frontiers in Education Conference, Session S3F, Nov 2003
8、 Toshihiko Takeuchi, Akiyuki Sakuma,Applying task-given-type examination system to the semester examination of a university, Proceedings of the International Conference on Computers in Education (ICCE’02), vol.1,Dec.2002:637-638
9、 邬群勇,王灿辉,计算机等级考试系统的设计与实现,微型电脑应用,2001,17(2):11-13
10、 成汝震,刘宏忠,于化龙,基于 Web 自适应考试系统,计算机应用,2002,22(7):122-123
11、 卢秉亮, 王沈波,一个基于 C/S 的考试考场编排 MIS 的设计与实现,微处理机,2003,1(2):122-124
12、 吴萍,蒲鹏,基于 B/S 结构的网上考试系统平台的设计与应用,微型电脑应用,2003,(6):36-38
13、 李登攀,分布式多媒体教学考试系统的设计与实现,计算机工程与设计,2002,23(9):44-47
14、 吴锦林,吴清锋,分布式计算机应用水平考试系统的设计与实现,计算机工程与设计, 2003,24(3):44-47
15、 王瑛、王豪行,客户/服务器结构的数据安全性研究,计算机工程,2000,26(11):138-140
16、 Alex Shafarenko, Dima Barsky, A Secure Examination System with Multi-Mode Input on the World-Wide Web, Advanced Learning Technologies, 2000. IWALT 2000. Proceedings. International Workshop on , 4-6 Dec. 2000:97-100
17、 高强,张晓明,边小凡,基于 COM 技术的考试系统的设计与实现,微机发展, 2002,5:47-50
18、 Zhang Yufang; Xiong Zhongyang,An MIS security strategy based on client/server architecture High Performance Computing in the Asia-Pacific Region, 2000. Proceedings. The Fourth International Conference/Exhibition on,2000,vol.2(5): 676-677
19、 谢深泉,胡宁静,试题库设计和自动组卷中的几个问题,湘潭大学自然科学学报,2002,24(3):27-31
20、 郝莹,网上考试系统中的安全机制,微机发展,2001(3):35-37
21、 CC.Ko,CD.Cheng, Secure Internet Examination System Based on Video Monitoring, Internet Research: Electronic Networking Applications and Policy, 2004,14(1):48-61
22、 潘正君,康立山,演化计算(中国计算机学会学术著作丛书),北京:清华大学出版社 1998
23、 郑志军,郑守淇,用基于实数编码自适应遗传算法进化神经网络,计算机工程与应用,2000,(9):36—37
24、 全惠云,范国闯,赵霆雷,基于遗传算法的试题库智能组卷系统研究,武汉大学学报(自然科学版),1999,45(5) :758-760.
25、石中盘,韩卫,基于概率论和自适应遗传算法的智能抽题算法,计算机工程,2002,28(1):141-143
26、 徐一峰,计算机考试系统抽题算法的哈希函数描述,佳木斯大学学报(自然科学版),2004,22(2):239-241
27、 赵永斌,范通让,谢锘,远程考试系统信息安全模型的设计,无线电通信技术,2005(31): 33-35
28、张正兰,刘明本,孟庆强,基于 EJB 设计模式的通用考试系统,计算机应用,2004,24(12):251-253
29、陈大鑫,杨路明,MVC 设计模式在远程考试系统中的应用,微机发展,2004,14(10):74 -78
30、黄红海,张洪涛,基于 B/S 结构的网络考试系统,计算机辅助工程,2003(6):50-54
31、秦炜,姚建刚,姚尧,罗滇生,基于 B/S 模式的 MIS 设计,电力自动化设备,2002,22(11):35-38
32、Gene Alloway, Nathan Bos, Kathleen Hamel, Creating an inquiry-learning environment using the World Wide Web, Journal of Network and Computer Applications, 1997, vol. 20(1): 75-85
33、 杨洋,伍控洪,林孝康,基于 B/S 结构的网上考试系统的计与实现,中国有线电视,2003,9(10):116-120
34、 李一宁, 汪泉弟, 何为,基于 C/S 和 B/S 混合模式的电能管理信息系统,重庆大学学报,2003,26(6):56-59
35、 陈玉明,邱桃荣,基于 C/S 与 B/S 国家高新技术考试管理信息系统的设计与实现,上海第二工业大学学报,2004,(1):40-45
36、 李志蜀,游洪跃,C/S,B/S 及 Distribution 在 MIS 开发中的应用研究,四川大学学报(自然科学版),2000,37(1):41-45
37、Nauman Chaudhry, James Moyne,Elke A. Rundensteiner,An extended database design methodology for uncertain data management, Information Sciences, 1999, vol. 20(1): 83-112
38、Hani Hagras, Victor Callaghan, Martin Colley,A hierarchical fuzzy–genetic multi-agent architecture for intelligent buildings online learning, adaptation and control, Information Sciences, 2003, vol. 50(1): 33–57
2.李跃华,曹大林,丁浩,基于 B/ S 结构考试系统的设计与实现,2005(4)3:73-76
3.李一宁, 汪泉弟, 何为,基于 C/S 和 B/S 混合模式的电能管理信息系统,2003(26)6:56-60
4.毛根生,单文,分布式多层 MIS 系统在 DELPHI 中的实现,计算机应用研究,2001,(18)5:94-96
5.Navid Khosravi, Farshid Zaker, Mohammad Bakuii Katrimi, Ahmad Zarei, Ali Kamandi,An approach to building model driven enterprise systems in Nebras Enterprise Framework,Companion of the 17th annual ACM SIGPLAN conference on Object–oriented programming, systems, languages, and applications,Nov. 2002
6.Steven Teixeira, Xaier Pacheco, Delphi 7 开发人员指南,机械工业出版社,2004
7.毛根生,单文,分布式多层 MIS 系统在 DELPHI 中的实现,计算机应用研究,2001,(18)5:94-96
8.彭文波,MD5 算法原理及应用,信息网络安全,2004,5:137-139
9.Chad Z. Hower a.k.a Kudzu,Hadi Hariri,Indy in Depth,Cyprus Atozed Software,2005
10.张瑞昌,向世勇,赵嵩正,Delphi/SQL Server 事务处理编程技术,计算机应用研究,2004, 21(12):249-250
11.杨树勤,卫生统计学(第 3 版),人民卫生出版社,1999 年 6 月:35-37
12.郭祖超主编,医用数理统计方法(第三版),人民卫生出版社,1988
13.Gan.F.F,Koehler.K.J,Goodness-of-fit Test Based on P.P Probability Plots,Technometrics,1990:32(3
1、 Lúcio Cunha Tinoco,Online Evaluation in WWW-based Courseware:The QUIZIT System, Publisher: Virginia Polytechnic Institute and State University Published,Jan 1996
2、 Hammoud MM, Barclay ML. Acad Med.,Development of a Web-based question database for students' self-assessment. Sep 2002:925
3、David Arnow,Oleg Barshay,On-line Programming Examinations Using WebToTeach,Proceedings of the 4th annual SIGCSE/SIGCUE ITiCSE conference on Innovation and technology in computer science education,Porland,1999 Jun
4、于海昌,于殿昌,基于 B/S 模式的网上考试系统,信息技术,2004,28(5):88-90
5、 林成华,金敏,智能化远程考试系统的研究与实践,现代教育技术,2003,13(3):29-33
6 、 D.B.Barsky and A.V.Shafarenko, WWW and Java-based distributed examination system for distance learning applications, Aizu International Symposium on Parallel Algorithms/Architecture Synthesis, 1997,pp.356-363
7 、 Yuan Zhenming,Zhang Ling,Zhan Guohua, A Novel Web-based Online Examination System For Computer Science Education, 33rd ASEE/IEEE Frontiers in Education Conference, Session S3F, Nov 2003
8、 Toshihiko Takeuchi, Akiyuki Sakuma,Applying task-given-type examination system to the semester examination of a university, Proceedings of the International Conference on Computers in Education (ICCE’02), vol.1,Dec.2002:637-638
9、 邬群勇,王灿辉,计算机等级考试系统的设计与实现,微型电脑应用,2001,17(2):11-13
10、 成汝震,刘宏忠,于化龙,基于 Web 自适应考试系统,计算机应用,2002,22(7):122-123
11、 卢秉亮, 王沈波,一个基于 C/S 的考试考场编排 MIS 的设计与实现,微处理机,2003,1(2):122-124
12、 吴萍,蒲鹏,基于 B/S 结构的网上考试系统平台的设计与应用,微型电脑应用,2003,(6):36-38
13、 李登攀,分布式多媒体教学考试系统的设计与实现,计算机工程与设计,2002,23(9):44-47
14、 吴锦林,吴清锋,分布式计算机应用水平考试系统的设计与实现,计算机工程与设计, 2003,24(3):44-47
15、 王瑛、王豪行,客户/服务器结构的数据安全性研究,计算机工程,2000,26(11):138-140
16、 Alex Shafarenko, Dima Barsky, A Secure Examination System with Multi-Mode Input on the World-Wide Web, Advanced Learning Technologies, 2000. IWALT 2000. Proceedings. International Workshop on , 4-6 Dec. 2000:97-100
17、 高强,张晓明,边小凡,基于 COM 技术的考试系统的设计与实现,微机发展, 2002,5:47-50
18、 Zhang Yufang; Xiong Zhongyang,An MIS security strategy based on client/server architecture High Performance Computing in the Asia-Pacific Region, 2000. Proceedings. The Fourth International Conference/Exhibition on,2000,vol.2(5): 676-677
19、 谢深泉,胡宁静,试题库设计和自动组卷中的几个问题,湘潭大学自然科学学报,2002,24(3):27-31
20、 郝莹,网上考试系统中的安全机制,微机发展,2001(3):35-37
21、 CC.Ko,CD.Cheng, Secure Internet Examination System Based on Video Monitoring, Internet Research: Electronic Networking Applications and Policy, 2004,14(1):48-61
22、 潘正君,康立山,演化计算(中国计算机学会学术著作丛书),北京:清华大学出版社 1998
23、 郑志军,郑守淇,用基于实数编码自适应遗传算法进化神经网络,计算机工程与应用,2000,(9):36—37
24、 全惠云,范国闯,赵霆雷,基于遗传算法的试题库智能组卷系统研究,武汉大学学报(自然科学版),1999,45(5) :758-760.
25、石中盘,韩卫,基于概率论和自适应遗传算法的智能抽题算法,计算机工程,2002,28(1):141-143
26、 徐一峰,计算机考试系统抽题算法的哈希函数描述,佳木斯大学学报(自然科学版),2004,22(2):239-241
27、 赵永斌,范通让,谢锘,远程考试系统信息安全模型的设计,无线电通信技术,2005(31): 33-35
28、张正兰,刘明本,孟庆强,基于 EJB 设计模式的通用考试系统,计算机应用,2004,24(12):251-253
29、陈大鑫,杨路明,MVC 设计模式在远程考试系统中的应用,微机发展,2004,14(10):74 -78
30、黄红海,张洪涛,基于 B/S 结构的网络考试系统,计算机辅助工程,2003(6):50-54
31、秦炜,姚建刚,姚尧,罗滇生,基于 B/S 模式的 MIS 设计,电力自动化设备,2002,22(11):35-38
32、Gene Alloway, Nathan Bos, Kathleen Hamel, Creating an inquiry-learning environment using the World Wide Web, Journal of Network and Computer Applications, 1997, vol. 20(1): 75-85
33、 杨洋,伍控洪,林孝康,基于 B/S 结构的网上考试系统的计与实现,中国有线电视,2003,9(10):116-120
34、 李一宁, 汪泉弟, 何为,基于 C/S 和 B/S 混合模式的电能管理信息系统,重庆大学学报,2003,26(6):56-59
35、 陈玉明,邱桃荣,基于 C/S 与 B/S 国家高新技术考试管理信息系统的设计与实现,上海第二工业大学学报,2004,(1):40-45
36、 李志蜀,游洪跃,C/S,B/S 及 Distribution 在 MIS 开发中的应用研究,四川大学学报(自然科学版),2000,37(1):41-45
37、Nauman Chaudhry, James Moyne,Elke A. Rundensteiner,An extended database design methodology for uncertain data management, Information Sciences, 1999, vol. 20(1): 83-112
38、Hani Hagras, Victor Callaghan, Martin Colley,A hierarchical fuzzy–genetic multi-agent architecture for intelligent buildings online learning, adaptation and control, Information Sciences, 2003, vol. 50(1): 33–57