A NOVEL WEB-BASED ONLINE EXAMINATION SYSTEM FOR COMPUTER SCIENCE EDUCATION Yuan Zhenming1 , Zhang Liang2 , Zhan Guohua3 1 Yuan Zhenming, Computer Science Department, Hangzhou Teacherrsquo;s College, No.222 Wenyi Street, Hangzhou , Zhejiang, PRC. zmyuan@cs.zju.edu.cn. 2 Zhang Liang, Computer Science Department, Hangzhou Teacherrsquo;s College, No.222 Wenyi Street, Hangzhou , Zhejiang, PRC. zhl@hztc.edu.cn. 3 Zhan Guohua, Computer Science Department, Hangzhou Teacherrsquo;s College, No.222 Wenyi Street, Hangzhou , Zhejiang, PRC. ghzhan@hztc.edu.cn. Abstract – Web-based Examination System is an effective solution for mass education evaluation. We have developed a novel online examination system based on a Browser/Server framework which carries out the examination and auto-grading for objective questions and operating questions, such as programming , operating Microsoft Windows, editing Microsoft Word , Excel and PowerPoint, etc. It has been successfully applied to the distance evaluation of basic operating skills of computer science, such as the course of computer skills in Universities and the nationwide examination for the high school graduates in Zhejiang Province, China. Index Terms – Examination system, Auto-grading system, Web-based, DCOM 1. INTRODUCTION In China, the education for basic computer operating skills has been broadly launched. The skills include the operating of Windows, MS Office, Networking skills, etc., which are the foundation of a combination of different courses, as well as of electronic-government. Now, every undergraduate must pass the course of the Computer skills, while every civil servant must pass the corresponding Computer Operating Exams. Furthermore, the basic computer education in high schools is in process. Since the late 1990rsquo;s, hundreds of thousands of people have taken part in different levels of computer education and testing in Zhejiang Province. It is necessary to build a Web-based learning and examination system for such a large number of people, as an effective solution to mass learning and evaluation of basic computer education. Several Web-based learning and testing systems have been designed, such as WebCT[1], QUIZIT[2], ASSYST[3] , and PILOT[4]. The most widely used question types of the Web-based examination system are objective tests and quizzes which assume simple answers that can be formally checked and easily evaluated online. The typical questions are limited to yes/no questions, multiple -choice/singleanswer questions, multiple-choice/multiple-answer questions, and fill-in questions with a string and numeric answer.[5] Richer types of answers in these systems need to be graded manually by the course graders or the instructors. In addition, these systems do not support testing operating skills, such as Windows printer setup operation and Word editing, etc. in the client computer. Our examination system fo r basic computer operating skills has the following characteristics: (1) The question types include not only objective questions, but also operating questions as Windows, MS Word, MS Excel, Internet skills, etc. (2) The goal of the learning and testing system is to train the practical skills. As a result, operating and testing in the actual environment of the client machine is the best learning method. (3) It is urgent to develop an automatic grading system which can grade the operating questions as well as the objective ones. However, the previous Web-based learning and testing system cannot support such functions. We have developed a novel online examination system based on a Browser/Server framework using state-of-art computer technologies, which carries out the examinations for basic computer operating skills including objective tests, Visual Basic programming, Microsoft Windows operating , Word, Excel and PowerPoint editing, Internet and Email skills, etc. It has also implemented automatic grading online. 2. SYSTEM ARCHITECTURE Our web-based examination system is a distributed collaborative system which is based on DCOM technology. It has four major components: the examination preparation system, the examination system, the examination monitor system and the auto-grading system. l The preparation system is used to manage question storage, assign test ID and schedule the test. The question database is composed of the questions, a set of possible answers, the question types and other metadata, which are indexed by several factors, such as topics, keywords, complexity and difficulty, etc. The database is open to teachers, allowing them to add questions and answers by template. l The examination System is a web-based testing interface for students, called WOES , which include the following key features: client side control, time control, security control and auto-installation. Benefiting from DCOM technology, the system can install and update itself conveniently, better than the C/S framework. Because the system is established on the Web, the systematic security faces a severe challenge. We Session S3F 0-7803-7961-6/03/$17.00 copy; 2003 IEEE November 5-8, 2003, Boulder, CO 33rd ASEE/IEEE Frontiers in Education Conference S3F-8 guarantee the security by cryptography, real-time monitoring system and data transmission encryption. The cryptography is used to validate student identification before testing. l The real-time monitoring system requires students not to leave the computer during the test by face tracking technology. The data transmission encryption system transmits the examination question and result in secret form through the network to the server. The examination monitor system is also the manager of the examination system, by which we can monitor the test processing, carry out test ID statistic and collect the answers, etc. l The auto-grading system is designed by the fuzzy matching algorithm and the macro programming technology, which is seasoned with variable question types. 3. WEB-BASED ONLINE EXAMINATION SYSTEM 3.1 The aim of the examinat
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A NOVEL WEB-BASED ONLINE EXAMINATION SYSTEM FOR COMPUTER SCIENCE
EDUCATION Yuan Zhenming1 , Zhang Liang2 , Zhan Guohua3 1 Yuan Zhenming, Computer Science Department, Hangzhou Teacherrsquo;s College, No.222 Wenyi Street, Hangzhou , Zhejiang, PRC. zmyuan@cs.zju.edu.cn. 2 Zhang Liang, Computer Science Department, Hangzhou Teacherrsquo;s College, No.222 Wenyi Street, Hangzhou , Zhejiang, PRC. zhl@hztc.edu.cn. 3 Zhan Guohua, Computer Science Department, Hangzhou Teacherrsquo;s College, No.222 Wenyi Street, Hangzhou , Zhejiang, PRC. ghzhan@hztc.edu.cn. Abstract – Web-based Examination System is an effective solution for mass education evaluation. We have developed a novel online examination system based on a Browser/Server framework which carries out the examination and auto-grading for objective questions and operating questions, such as programming , operating Microsoft Windows, editing Microsoft Word , Excel and PowerPoint, etc. It has been successfully applied to the distance evaluation of basic operating skills of computer science, such as the course of computer skills in Universities and the nationwide examination for the high school graduates in Zhejiang Province, China. Index Terms – Examination system, Auto-grading system, Web-based, DCOM 1. INTRODUCTION In China, the education for basic computer operating skills has been broadly launched. The skills include the operating of Windows, MS Office, Networking skills, etc., which are the foundation of a combination of different courses, as well as of electronic-government. Now, every undergraduate must pass the course of the Computer skills, while every civil servant must pass the corresponding Computer Operating Exams. Furthermore, the basic computer education in high schools is in process. Since the late 1990rsquo;s, hundreds of thousands of people have taken part in different levels of computer education and testing in Zhejiang Province. It is necessary to build a Web-based learning and examination system for such a large number of people, as an effective solution to mass learning and evaluation of basic computer education. Several Web-based learning and testing systems have been designed, such as WebCT[1], QUIZIT[2], ASSYST[3] , and PILOT[4]. The most widely used question types of the Web-based examination system are objective tests and quizzes which assume simple answers that can be formally checked and easily evaluated online. The typical questions are limited to yes/no questions, multiple -choice/singleanswer questions, multiple-choice/multiple-answer questions, and fill-in questions with a string and numeric answer.[5] Richer types of answers in these systems need to be graded manually by the course graders or the instructors. In addition, these systems do not support testing operating skills, such as Windows printer setup operation and Word editing, etc. in the client computer. Our examination system fo r basic computer operating skills has the following characteristics: (1) The question types include not only objective questions, but also operating questions as Windows, MS Word, MS Excel, Internet skills, etc. (2) The goal of the learning and testing system is to train the practical skills. As a result, operating and testing in the actual environment of the client machine is the best learning method. (3) It is urgent to develop an automatic grading system which can grade the operating questions as well as the objective ones. However, the previous Web-based learning and testing system cannot support such functions. We have developed a novel online examination system based on a Browser/Server framework using state-of-art computer technologies, which carries out the examinations for basic computer operating skills including objective tests, Visual Basic programming, Microsoft Windows operating , Word, Excel and PowerPoint editing, Internet and Email skills, etc. It has also implemented automatic grading online. 2. SYSTEM ARCHITECTURE Our web-based examination system is a distributed collaborative system which is based on DCOM technology. It has four major components: the examination preparation system, the examination system, the examination monitor system and the auto-grading system. l The preparation system is used to manage question storage, assign test ID and schedule the test. The question database is composed of the questions, a set of possible answers, the question types and other metadata, which are indexed by several factors, such as topics, keywords, complexity and difficulty, etc. The database is open to teachers, allowing them to add questions and answers by template. l The examination System is a web-based testing interface for students, called WOES , which include the following key features: client side control, time control, security control and auto-installation. Benefiting from DCOM technology, the system can install and update itself conveniently, better than the C/S framework. Because the system is established on the Web, the systematic security faces a severe challenge. We Session S3F 0-7803-7961-6/03/$17.00 copy; 2003 IEEE November 5-8, 2003, Boulder, CO 33rd ASEE/IEEE Frontiers in Education Conference S3F-8 guarantee the security by cryptography, real-time monitoring system and data transmission encryption. The cryptography is used to validate student identification before testing. l The real-time monitoring system requires students not to leave the computer during the test by face tracking technology. The data transmission encryption system transmits the examination question and result in secret form through the network to the server. The examination monitor system is also the manager of the examination system, by which we can monitor the test processing, carry out test ID statistic and collect the answers, etc. l The auto-grading system is designed by the fuzzy matching algorithm and the macro programming technology, which is seasoned with variable question types. 3. WEB
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