• Annual Conference of KIPS
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• 2005.11a
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• pp.809-812
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• 2005

본 논문은 원격 교육 환경에서 자료구조 알고리즘을 학습자가 적극적인 상호작용을 통하여 학습자의 이해 능력에 맞추어 학습할 수 있도록 하는 시스템을 소개한다. 기존의 자료구조 알고리즘 학습 시스템들은 고정된 수치 데이터의 애니메이션을 보여주므로 여전히 일방적인 학습이며, 전시되는 예제들의 다양성이 부족하다. 본 시스템에서는 자료의 크기 및 알고리즘 실행속도의 조절과 알고리즘 실행시 코드추적 기능 등의 상호작용을 통하여 알고리즘에 대한 이해를 시각적으로 배가 시킨다. 이 시스템은 웹에서도 지원가능 하도록 플래시 액션스크립트 기반으로 구현하였다.

• Annual Conference of KIPS
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• 2019.05a
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• pp.314-315
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• 2019

소프트웨어 개발은 협업이 가장 중요시 되는 분야 중 하나로 팀 단위의 소프트웨어 개발의 품질 및 생산성 향상을 위해 팀 단위 프로젝트 방법론이 발달하였다. 방법론의 선택에 따라 개발의 결과물과 만족도에 큰 차이가 나타나게 되는데, 고전적인 폭포수(Waterfall) 방식의 대안인 애자일(Agile) 방법론은 점진적인 개발로 프로젝트 진행도중 발생하는 이슈처리를 효율적으로 해결할 수 있어 현재 많은 개발에 적용되고 있다. 그 중 스프린트 기법을 바탕에 두는 스크럼(Scrum)을 사용하는데 소규모 개발팀은 스크럼(Scurm)의 교육 부담과 스크럼 마스터의 부재로 해당 방법론을 적용하기 어려움을 겪는다. 이에 본 논문에서는 소프트웨어 공학의 애자일(Agile) 방법론 중 하나인 스크럼(Scrum)을 실제 프로젝트 관리 시스템의 도구로 사용하기 위해 웹 응용 시스템으로 구현하고자 하며 해당 서비스가 SW개발뿐 만 아닌 다양한 분야의 프로젝트에 적용될 수 있도록 한다. Spring 프레임워크를 이용하여 서버를 구축하고 AWS EC2를 통해 배포하며, BootStrap과 JQuery를 이용하여 웹을 구성하여 팀 프로젝트에 있어 효율적인 관리 도구가 될 수 있도록 한다.

• Journal of The Korean Association of Information Education
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• v.9 no.2
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• pp.231-241
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• 2005

There are two main purposes in learning map in the subject of social studies in understanding the map itself and growing the ability of construing connection and situation and reasoning by applying the map. However, the map learning leans to understanding the map itself in existing materials. Although there is an interaction between learners and the context, there is hardly any interaction between learners or between teachers. Therefore, this paper designs and implements the web-based map learning system using the constructivism to make the cooperative study possible through the interaction and to be able to teach the map learning based on learners. The characteristics of the system suggested in this paper are as below. First, learners study the basic factors of the map by themselves and enable them to give feedbacks after the evaluation. Also, it embodies to evaluate the context of study as a multiple question after studying the whole thing. Second, the participation is induced by bringing the interests of learners based on the web and the interaction between teacher and learner as well as between learners is strengthened by the bulletin board and chatting function. Third, the study of utilizing map is embodied by means of applying the study model of solving problems and suggesting useful tasks.

• The Journal of Korean Association of Computer Education
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• v.7 no.2
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• pp.57-65
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• 2004

For the purpose of an effective instruction-learning process by systematic management of knowledge between instructor and learner in e-Learning, we have developed the authoring system in which the instructor is able to author easily on various lecture frames according to the instructional design theory. The authored contents with the relations among the learning objects based on SCORM standard would help learner to conceptualize the contents. A knowledge map is constructed on the relations among the learning objects using RDF of the semantic web. We introduce the ontology in which the instructor can make a dictionary of terminology by registering the words of the teaching area. The learning activity and comprehension of students can be assessed using each student's learning map along the interaction points which are introduced to present the individual learning by considering each student's capacity of understanding and achievement.

• Journal of the Korean Society for information Management
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• v.26 no.3
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• pp.239-259
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• 2009

The study aims at investigating students' behaviors and perceptions regarding the collaborative learning based group project using the wiki environment. The study utilized Google Sites as a case, and analyzed file unloads, the use of web pages, navigation bars, and comments as well as surveys. The study discusses main characteristics of students' activities in the collaborative learning group project, which are drawn from the analysis of students' behaviors and perceptions. The study also provides implications for improvement of wiki environment to support collaborative learning in education.

• Journal of the Korea Society of Computer and Information
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• v.27 no.5
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• pp.37-45
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• 2022

As of 2020, about 500 hours of videos are uploaded to YouTube, a representative online video platform, per minute. As the number of users acquiring information through various uploaded videos is increasing, online video platforms are making efforts to provide better recommendation services. The currently used recommendation service recommends videos to users based on the user's viewing history, which is not a good way to recommend videos that deal with specific purposes and interests, such as educational videos. The recent recommendation system utilizes not only the user's viewing history but also the content features of the item. In this paper, we extract the content features of educational video for educational video recommendation based on YouTube, design a recommendation system using it, and implement it as a web application. By examining the satisfaction of users, recommendataion performance and convenience performance are shown as 85.36% and 87.80%.

• Journal of Internet Computing and Services
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• v.6 no.6
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• pp.1-12
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• 2005

The number of web contents is enormous in the billions and rapidly growing, Most contents are state, but an increasing number are generated dynamically, Therefore, Internet-based client/server architecture of Contents Delivery Service System suffers from frequent disconnections and security threats casused by dependency of the server or overload. Idle computing resources in Internet are used for sloving these issues, In this paper, We implement and design the Content Delivery Service System for cyber education system using idle Computing Power in P2P computing to share computing resources, We implement not only internet infrastructure but also satellite infrastructure system. and designed to transfer real-time or non real-time contents.

• Annual Conference of KIPS
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• 2003.11b
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• pp.765-768
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• 2003

실업계 고등학교는 산업계에 우수한 기능인력을 양성 공급하여 국가의 경제 발전에 그 동안 크게 이바지하여 왔다. 그러나 지식기반 사회의 도래에 따른 직업세계의 변화, 국민소득 향상과 핵가족화로 인한 고등교육에 대한 욕구 증대 등 제반 사회 환경의 변화로 인하여 최근 들어 진학위주의 교육풍토가 조성되면서 새로운 변화에 직면하고 있다. 해마다 진학을 희망하는 학생 수는 증가하고 있고, 대학 입시유형은 다양하고 복잡해지는데 비해 실업계 고등학교의 현실은 한 두 명의 진학담당 교사에 의해서 대부분의 업무가 처리되고 있다. 진학을 희망하는 학생들을 조사하여 진학관련 자료를 별도로 작성한 후 상담을 할 경우 일일이 찾아야 하는 불편함과 한 학생이 여러 대학을 지원할 수 있기 때문에 상담 시 많은 시간이 소요되고 있는 실정이다. 본 논문에서는 보다 효율적이고 체계적으로 진학지도에 도움이 될 수 있도록 웹을 기반으로 한 진학 정보 시스템을 설계 구현하였다.

• Journal of the Korea Computer Industry Society
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• v.2 no.7
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• pp.933-944
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• 2001

In the process of software development, object-oriented framework enables directly improving the productivity of the developer through the reuse of code, analysis and design informations. object-oriented framework is a set of usable and expandable classes and their connectivity. It is a meta solution that contains the code to be reused in the framework and the expert design results on a specific area. This paper constructs the framework that extracts the common services of BBS, chatting, white board and ftp applications for internet-based remote education system. These services can be mostly reused within heterogeneous applications in the form of component.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2009.10a
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• pp.116-119
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• 2009

In this paper, a P2P streaming system for community TV service which requires realtime interactions was designed and implemented. The proposed system constructs a short delay tree-based P2P network in order to effectively support various community TV services within end-to-end delay bounds. Because a community service based on conversation requires a short delay. The P2P network of this paper was constructed by using an algorithm which utilizes locality and delay information. The implemented P2P streaming system is composed of a Web server and a application, each of which was implemented using Asp.Net and C#.Net respectively.