• Journal of the Korea Society of Computer and Information
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• v.14 no.6
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• pp.99-106
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• 2009

Over recent decades, concept mapping has been used as a valuable Learning and Teaching tool. A number of studies have shown a positive impact on student learning. One of the disadvantages of this technique has been that assessing them or providing feedback to students is time consuming. We aim here to introduce ways of reducing the complexity of using concept map techniques in online activities. Several types of scoring methods for the concept map based assessment have been developed. In this paper, we describe the development of an automatic assessment system that implements those techniques. We contribute a design that uses semantic web technologies for both the management and the scoring of the concept maps.

• Journal of KIISE:Computing Practices and Letters
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• v.13 no.2
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• pp.86-99
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• 2007

Packet filtering is to filter out potentially malicious network packets. In order to test a packet filtering function we should verify whether security policies are performed correctly as intended. However there are few existing tools to test the function. Besides, they need user participation when generating test cases or deciding test results. Many security administrators have a burden to test systematically new security policies when they establish new policies or modify the existing ones. To mitigate the burdens we suggest a new test method with minimal user articipation. Our tool automates generation steps of the test cases and the test oracles, respectively. By using the test oracles generated automatically, deciding test results is possible without user intervention. Our method realizes an automatic testing in three phases; test preparation phase, test execution, and test evaluation. As a result it may enhance confidence of test activities more highly. This paper describes the design and implementation of our test method and tool.

• The KIPS Transactions:PartD
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• v.14D no.7
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• pp.763-772
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• 2007

Due to increased software development cost, interest about the method and automated tool for reusing legacy system have been running high. Therefore, In this study, it proves the definition, concept and also background of legacy system by showing real market and technology trend. Automation tool is designed and developed to handle the concrete development methodology, procedure and reference. Also, we implemented the process that analyze the legacy system and extract, refine, store and reuse the candidate components by using LM(Legacy to Modern System) supporting tool presented in this paper. If LM supporting tool is applied to legacy system migration, we can expect cutting costs, shortening the developing period and succeeding the intellectual property by software re-engineering.

• Journal of Internet Computing and Services
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• v.8 no.6
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• pp.75-85
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• 2007

One of important factors for improving the learning achievement of students in computer programming education is to provide plenty of opportunities of problem-solving experiences through variety forms of assignments, However, for the most cases, evaluation of programming assignments is performed manually by instructors and automated tools for the accurate evaluation are not equipped at the present time. Under this restricted environment instructors need much work and time to grade assignments so that instructors could not deliver sufficient programming assignments to students, In order to overcome this problem. au automated programming assignment evaluation system is needed that would enable instructors to evaluate assignments easily in an effective and consistent way and also to detect any plagiarism activities among students in program source codes readily, Accordingly, in this paper we design and implement a Web-based programming assignment grading system that allows instructors to evaluate program performance automatically as well as to evaluate program styles and piagiarism easily with appropriate feedback.

• Journal of KIISE
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• v.41 no.12
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• pp.1099-1109
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• 2014

Web-accessibility evaluation tools can be used to determine whether or not a website meets accessibility guidelines. As such, many such tools have been developed for web accessibility, but most of them dynamically fetch and analyze pages and as a result, some pages maybe omitted due to the lack of access authorization or environment information. In this paper, we propose a static method that analyzes web accessibility via abstract parsing. Our abstract parsing technique understands syntactic and semantic program structures that dynamically generate web pages according to external inputs and parameters. The static method performs its analysis without omitting any pages because it covers all execution paths. We performed an experiment with a PHP-based website to demonstrate how our tool discovers more accessibility errors than a dynamic page accessibility analysis tool.

• Journal of the Korean Society for Railway
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• v.11 no.2
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• pp.139-144
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• 2008

Recent advances in embedded system technology have brought more dependence on automating train control. While much efforts have been reported to improve electronic hardware's safety, not so much systematic approaches to evaluate software's safety, especially for the vital software running on board train controllers. In this paper, we propose a new software tool to evaluate software safety for the train controller. We have reviewed requirements in the international standards and surveyed available tools in the market. From that, we identified necessary tests to meet the standards and proposed a tool that can be used during the whole software life cycle. We show the functional architecture and internal components of the tool. Our tool is unique in that it is a comprehensive tool specifically designed for software safety evaluation while other tools are not.

• KIPS Transactions on Software and Data Engineering
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• v.12 no.6
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• pp.243-250
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• 2023

Chest X-ray is radiological examination for xeamining the lungs and haert, and is particularly widely used for diagnosing lung disease. Since the quality of these chest X-rays can affect the doctor's diagnosis, the process of evaluating the quality must necessarily go through. This process can involve the subjectivity of radiologists and is manual, so it takes a lot of time and csot. Therefore, in this paper, based on the chest X-ray quality assessment guidelines used in clinical settings, we propose a tool that automates the five quality assessments of artificial shadow, coverage, patient posture, inspiratory level, and permeability. The proposed tool reduces the time and cost required for quality judgment, and can be further utilized in the pre-processing process of selecting high-quality learning data for the development of a learning model for diagnosing chest lesions.

• Proceedings of the Korean Society for Information Management Conference
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• 2011.08a
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• pp.79-85
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• 2011

웹은 디지털 정보화 시대에 정보를 제공하는 가장 보편적인 매체이며 이를 통한 정보 습득이 보편화 되어가고 있다. 대학기록관의 웹 기록은 대학이 소장하고 있는 기록물을 이용자가 웹을 통하여 보다 편리하게 이용할 수 있도록 한다. 본 연구는 국내 대학기록관 웹 사이트의 현황을 보다 정확하게 파악하기 위하여 자동화 평가 도구 K-WHA 3.0을 사용한 접근성 평가와 WebQual 4.0을 이용한 사용성 및 정보품질평가를 수행함으로써 객관성과 주관성 각각의 측면을 모두 고려하여 평가결과를 도출하였다. 또한 웹 기록에 대한 관심을 높이고 활용방안을 모색하기 위해 잠재적 이용자들을 대상으로 선정하여 사용자 경험에 기반한 설문조사를 실시하여 각 대학 별 대학기록관의 웹 기록 구축 현황에 대해 평가였으며 이러한 사용성 평가에 대한 분석을 통해 향후 대학기록관 웹 기록 관리의 발전방향을 제안하고자 한다.

• Journal of Korea Society of Industrial Information Systems
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• v.17 no.7
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• pp.199-208
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• 2012

Due to increase of interest in web accessibility and recognition of its necessity, a variety of accessibility indicators and automatic assessment tools have been developed, but previous literature indicated various problems about these indicators and tools. Thus, this research proposes and verifies the assessment model for accessibility of a frame content by considering web standards which develop the same web page for every client environment.

• Proceedings of the Korea Society for Simulation Conference
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• 1992.09a
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• pp.217-218
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• 1992

S사는 생산량 증대에 따른 물동량 증가에 대비하기 위하여 물류 시스템 개선안을 수립한 수 , 타다성을 검증하기 위해 시뮬레이션 기법을 채택하여 물류관점에서 현행 시스템 및 개선안에 대한 진단을 실시하였다. 컴퓨터 시뮬레이션 기법은 생산공정에 실질적인 물리적 변화를 가하지 않고도 "What-if" 라는 다양한 시나리오를 작성하고 이들에 대한 분석 및 평가를 통하여 그 가능성을 타진하며 최적안을 도출하는데 유용하게 이용되는 도구이다. 본 진단을 통하여 현행 시스템의 문제점을 정량적으로 파악하였다. 그리고, 물류 개선안에 대한 기대효과를 예측하고 발생가능한 문제점을 사전에 도출하여 시행착오를 최소화하는데 기여하고자 하였다.기여하고자 하였다.