• Journal of the Korea Computer Industry Society
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• v.3 no.9
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• pp.1215-1222
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• 2002

This study is design and implementation of XML-based Item Bank System. This system can apply the student with effective assessment by creating, searching and providing of educational problems using XML. In order to supply standard problems to student, first, we analyzed the standard types of various problems and designed these types with XML DTD. Second, we extracted math problem in the elementary school by applying these standard types. Third, we constructed the Item Bank System using relational Data Base and XML parser. The result of system applying, proposed system could offer the student the standard problems at on-line environment. Therefore we shown to be applied educational assessment and integrated non-standard problems effectively.

• The KIPS Transactions:PartA
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• v.9A no.3
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• pp.301-310
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• 2002

Internet has been applied to the educational field such as data search, lecture by motion picture, realtime examination. Most questions made for these remote examinations use methods of making questions randomly using fixed questions or item pools. The designed system in this paper makes questions without knowing MARK-UP language and after undergoing examinations on Web. Also it readjusts degree of difficulty automatically on the basis of the rate of correct answers. In addition, this enables learners to perform feedback learning after examinations and subsequently learners themselves to adjust their degree of difficulty and undergo reexaminations. The automatic selection system makes it easy to select questions, possible to expect average marks and number of questions made, and to prevent that questions may be made too easy or too hard. For a remote examination, as there are much possibilities of dishonesty such as examination by proxy so different types of problems are made, and problems of the rationality caused from that can be avoided.

• Journal of The Korean Association of Information Education
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• v.6 no.3
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• pp.298-307
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• 2002

Recent advances in the Web technology have been changing our life in various aspects. These advances have brought us new paradigms of education. The Web provides teachers with many opportunities to implement wide ranges of new teaching and learning practices, which supplement the traditional classroom teaching-learning. Especially, the Web enables so-called WBI (Web-based instruction) system as a teaching aid. Now the WBI system can incorporate multimedia information with various communication and collaborative tools. In order for the WBI system to be successful, various supports are necessary. One of such supports comes from assessment. In this work, an item pool system for leveled assessment is designed and implemented. The proposed system has the following characteristics. First, the item pool is classified into three categories subject, semester, and chapter. This categorization makes lookup easier and faster. Second, any teacher can use the item pool system and enter their questions into the item pool. Third, the proposed system reflects various levels of students for each course. Thus, students can select their exams based on their progress and background. Finally, it can make difficulty of each item to be objective by repeated tests and refinements.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.13 no.8
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• pp.1608-1614
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• 2009

Many learners on E-learning databank based selection system making self-directed progress with learning by diagnosis oneself based on automatically selection questions using degrees of difficulty. This methods is most important to choose a questions using right a way for effective self-directed learning progress of learners. This paper present new question selection algorithms consider for degree of difficulty, scope of learning and keyword of questions according to examination type. This algorithm providers more effective learning diagnosis methods as compared with previous algorithm consider for only degrees of difficulty.

• 한국정보교육학회:학술대회논문집
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• 2004.08a
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• pp.687-695
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• 2004

최근 우리나라의 발달된 인터넷 인프라를 활용한 원격 강의나 WBI에서의 평가 시스템 및 웹 기반 문제은행에 관한 연구가 활발히 이루어지고 있다. 본 논문은 기존의 연구들의 구성주의에 기반한 개별화 교육 및 평가의 관점을 벗어나 기존의 평가 방범의 장점을 살리면서 평가와 동시에 결과를 참고하여 교육활동을 전개할 수 있고, 평가 문항의 자동화된 분석을 통하여 평가의 질을 개선시킬 수 있는 문제 은행 시스템을 구현하였다. 또 한 클래스의 학생 모두가 같은 수준으로 동시에 실시하는 총괄 평가 뿐 아니라 학습자의 누적된 평가 결과를 분석한 결과로 수준별 평가도 실시할 수 있는 범용성을 가지는 실시간 평가 시스템을 설계하고 구현하였다.

• Journal of Korea Multimedia Society
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• v.7 no.7
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• pp.944-955
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• 2004

The modern society as a high-level information-oriented society lays a great emphasis on lifelong education. It emphasizes all the learners' creative learning ability and various teaching-learning methods as well. We need the self-directed learning to meet these requirements, and one of the solutions is the self-directed teaching-learning process employing the web. Though many educators, so far, developed a number of teaching materials, they are no more than web-based teaching materials for simple learning activities or simple item-bank systems. So, this paper suggests an problem-solving based and self-directed learning system on web in order to overcome such simplicities, and it shows design and implementation of the system. Suggested learning system enables learners to get thinking skill though self-directed control of learning level after they learn the basic concepts and principles on the web as self-directed learning. For example, the system was applied to mathematics education for a middle school students. It supports a test of questions chosen from the item bank in a self-directed way, and helps learners to understand their learning levels for themselves and to solve their questions through on-line discussions with their instructor. The system can also be helpful in improving the learners' learning effects by sharing mutual information through the data room or the Q&A between learners and learners or between learners and instructors.

• Journal of The Korean Association of Information Education
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• v.4 no.1
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• pp.40-56
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• 2000

Web based learning has been used for many educational systems by aid of the development of internet technique. The true process of education includes not only learning contents but also learning process and the evaluation. So far, Web-based evaluation mainly consists of the evaluation of the learning products or the evaluation of the cognitive domain. But, there is lack of the appropriate feedback for learning effects. In this paper, we design and implement an evaluation system for Web-based instruction. In our system, the learners are evaluated during the process of Web-based learning. Our system provides learner-centered instruction for students with instant feedback. The questions made up by teachers are stored in the database and can be searched by a keyword, grade, semester or unit. The evaluation system can also provide the feedback to right or wrong answer for each question. Our system provides the learners with instant feedback after solving the questions and also can improve the quality of learning process using the Web.

• The KIPS Transactions:PartD
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• v.9D no.3
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• pp.511-522
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• 2002

WBI (Web-Based Instruction), a web-based tool for teaching the students at a long distance, makes possible to Interact between learners and instructors, provides a wide variety of learning materials, has an advantage of overcoming spatial constraints. In this paper, as a model of using the web for education, a web-based education-evaluation system has been designed and implemented. Web-based education-evaluation system has to be equipped with both of the online setting question mode and the upload setting question mode, the former makes questions on web and the latter uploads the setted questions on offline with settling a defeat of the existing systems on setting questions. And the system has to be equipped with the function of analyzing the questions that gives teacher several kinds of analysis information and makes possible to feedback to questions by adjusting the difficulty and revising the questions. In this paper, a system that reflects the above requirements has been designed and implemented with PHP script language and MySQL database system.

• The Transactions of the Korea Information Processing Society
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• v.7 no.9
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• pp.2846-2856
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• 2000

Recently, according to the rapid development of web technology, a lot of applications based on web techniques have been developed. However, most of web applications have been developed relying on knowledge and experiences of the developer without systematic process. Web Applications are seldom developed in isolation. For web application designers, the simple and semantically rich methodology is needed to improve design and development process. In this paper, we propose a new development process methodology to improve low level technology based application development process which do not provide high level abstraction. We also suggest a new methodology to construct applications based on web. We describe a systematic web application development process by using Navigation Diagram as a analysis, design modeling method to develop web application with productivity and Quality. We apply the new development process to the EPBS(Electronic Problem Bank System) as examples. Web application development process proposed in this thesis can be maintained through reverse development, because it can be defined as high level abstraction for modeling. It is very easy to be understood as a process based on models. Also, analysis and design models can be reused as useful component whenever similar web application is developed.

• Proceedings of the Korean Information Science Society Conference
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• 2006.06b
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• pp.244-246
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• 2006

웹 기반 교육 시스템에서 문제 집합 구성은 주로 고정 출제 방식, 무작위 출제 방식, 난이도에 따른 출제 방식으로 이루어진다. 문제 집합의 구성 시 문제 은행에서 문제 난이도에 대한 객관성을 유지하는 것이 무엇보다 중요하다. 따라서 본 논문에서는 난이도를 재조정하는데 학습자들의 문제 풀이 결과를 반영하는 새로운 난이도 재조정 알고리즘을 제시한다. 본 논문에서 제안하는 학습자 피드백 기반 문제 수준 조절 방법은 개인 시험 결과, 그룹 시험 결과 그리고 개인의 특정 섹션 시험 결과를 함께 고려하여 난이도를 조절한다. 기존 알고리즘과 비교 분석한 결과 문제 난이도의 변화율 측면에서 보다 현실적인 문제 난이도 변화를 확인할 수 있었다.