• IE interfaces
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• v.10 no.3
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• pp.75-93
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• 1997

Unlike individual applications, it is extremely hard to obtain user requirements for group systems, since there exists very complicated dynamics in group. This may result in spreading a great amount of products with a broad range of contents. Thus, this study presents a comparative analysis of groupware products. As a result, these products have been categorized into three areas which include cooperation/document management systems, collaborative writing systems, and decision-making/meeting systems. While the systems reviewed here focus on the cooperation/document management systems, the other two areas will be dealt in details in part Ⅱ. The first area ends up with two large categories such as proprietary groupware products and intranet groupware products. However, it has been observed that there is a natural convergence between these two categories. Consequently, the comparative analysis has been performed in terms of functions provided on the two categories and a combined category. Each group of the functions has been divided into three parts which consist of basic functions, quasi-basic functions, and others. Such a decision has been made based on the frequency rate of the functions provided in the products. With a more strict rule, the basic functions comprise electronic mail, sanction, bulletin board, document management, scheduling, security, Web browser, and Internet connectivity. This study also provides a framework for integrated functional model of groupware systems. The basic functions are merged into the model. However, the model is so flexible that it can partially include the quasi-functions in addition to the basic functions. In the future, it is expected that a large number of products will stem from the modification of the functional model.

• The KIPS Transactions:PartA
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• v.11A no.2
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• pp.181-188
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• 2004

Recently most of the study about home-networking middleware take the way of web-control through the internet. Although the way of control using wire and PDA also be taken, but does not use standard techniques like UPnP and is limited in the technique controlling simple device. This paper is about the development of a Voice Gateway controlling many kinds of UPnP controlling devices connected to network. voice gateway is consisted of MPC850 module and phone interface and the set-top box, a part of computer in voice gateway is consisted of PSTN interface, information controlling process and the process of UPnP protocol. And I tried to implement this through entire system board.

• The KIPS Transactions:PartA
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• v.10A no.2
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• pp.173-180
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• 2003

This paper proposes Remote Educating Communication Tool (RECT) that allows students and teachers to communicate using Web-based Bulletin Board System. The distance teaching using DCOM (Distributed Component Object Model) voice module is used to enhance academic accomplishments for students in computer class. The DCOM voice module to be used in distance learning is designed, implemented and applied to teachers and students in the computer class in order to measure and analyze academic results. The RECT server provides Q&A sessions between students and teachers in the BBS using recording and playback functions. The client RECT includes recording and playback functions. The client module of RECT receives and uses DCOM module. When recording, the client transmits voice files with the recorded content to the server.

• The Journal of Society for e-Business Studies
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• v.9 no.4
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• pp.137-155
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• 2004

A video-conference system is being utilized in web based application services in various fields due to the widespread use of Internet and the progress of computer technologies. This system should use the public IP address for sharing file and white board and it is difficult to manage the internal network users of the firewall and non-public IP address users. In this paper, we propose an Application Level Gateway which transforms non-public IP address into public IP address. This mechanism is for the internal network users of the firewall or non-public IP address users over the Internet. We also propose a Control Daemon which manages video and audio media dynamically according to network bandwidth. This mechanism can start and terminate a video conference and manage the process of the video conference.

• Annual Conference of KIPS
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• 2002.11a
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• pp.273-276
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• 2002

사이버 공간은 개방성, 익명성, 탈중심성의 특성을 갖는다. 이러한 특성으로 인하여 긍정적인 측면과 부정적 측면이 동시에 나타나고 있다. 청소년들의 사이버 공간에서의 활동은 제공되는 정보를 단순하게 탐색하는 수동적 역할에 그치지 않는다. 청소년들은 자신의 의견을 제시하거나 정보를 제공하는 역할도 동시에 하고 있다. 이 과정에서 스스로 유해한 정보를 생산하거나 게시판에서 타인에게 해를 끼치는 행위가 발생하고 있다. 본 논문은 청소년들의 적극적인 정보제공 활동 시점에 발생하고 있는 정보화 역기능 현상을 해결하는 방안으로 인터넷 게시판에서 유해단어 필터링에 의한 정보윤리 교육 기법을 제안한다. 인터넷 게시판에서 유해단어 필터링 기법은 초 중등학교 홈페이지 게시판에서 나타나는 부적절한 행동과 상대방에 대한 성적 모욕, 욕설의 사용, 상대방 비하 등에 관련된 유해단어를 추출하여 유해단어 사전을 구축하고 필터링하는 방법이다. 필터링 된 결과에 따라 글 쓰는 시점에서 정보윤리 컨텐츠를 제공한다. 이 기법을 학교 홈페이지 게시판에 적용한 결과 그렇지 않은 경우에 비하여 학생들의 글쓰기 자세와 글 내용이 바른 것으로 나타났다.

• Journal of Korea Society of Digital Industry and Information Management
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• v.9 no.4
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• pp.69-79
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• 2013

A system of tracking a vehicle collects the vehicle location and then transmits the data into a GIS server in order to provide several service areas. An ODU built in the vehicle savesa GPS information data and communicates with the RSU installed in the road over the wave technology. The collected data in RSU is transmitted into the GIS serverand is stored. The system based on the collected GPS data in each vehicle is providing useful and various services between RSU and OBU. In this paper indicates that the system is designed in 2 phasesbased on the collected GPS data. The result comparing to process of GPS data created in 1 phase and 2 phase over the Web GIS service indicates that the capability of process of the GPS data in 2 phase is enhanced in "50.88% ~ 51.81%". Therefore, when the accident is happened the system of tracking the vehicle over GPS tech not only receives the information properly but also provides the emergence rescue services.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2004.05b
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• pp.154-157
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• 2004

A realization for the wireless transmission system on the Un image using embedded server is presented on the paper to be simply to omni-direction data acquisition. The embedded system is composed of the image data acquisition which has CMOS sensor and lame grabber, the embedded server that takes the wireless LAN target board, and client part that is monitoring the image from the embedded server. The experiment result is average 12.7fps in 8bit on the 320$\times$240, 4:2:2 YCbCr. The system enable images transmission to be soft . monitoring.

• 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.

• Journal of the Korean Society for Library and Information Science
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• v.57 no.1
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• pp.387-408
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• 2023

This study aims to discuss the necessity of providing welfare service information in public libraries, and to seek methods to efficiently collect, select, and provide welfare information. To conduct the research, literature review, case study, survey, and interview were conducted. It was revealed that 86.7% of the research participants agreed with the provision of welfare information in public libraries. Welfare information can be divided into four types according to the subject of production. The collection and selection of welfare information differs according to the four types of the information. Libraries provide welfare information with different components of the information depending on the types of the information and libraries. Welfare information is provided through the library homepage, and in this case, welfare information is posted on the homepage using the form of a web page and a bulletin board.

• Journal of Physiology & Pathology in Korean Medicine
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• v.36 no.6
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• pp.221-228
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• 2022

The purpose of this study is to report the research trends of Korean medicine treatment for alopecia areata. We investigated the studies on Korean medicine treatments for alopecia areata via searching 4 web databases of Korea. 13 papers were selected, and we classified them according to publication year, published journals, the types of study, research subject, the methods of treatment, confirmation of recurrence, methods of evaluation, and institutional review board(IRB). We analyzed a total of 13 clinical studies of Korean medicine on alopecia areata based on various criteria and reviewed the research trends. Based on this, we suggested points to be improved and supplemented when conducting clinical research on alopecia areata in the future. Clinical studies on alopecia areata started to be published in 2001, and acupuncture, pharmacopuncture, herbal medicines, etc. were used as treatment methods for alopecia areata. Most of the clinical studies on alopecia areata were case studies, so it is thought that various types of clinical studies are needed. In addition, it is necessary to confirm the recurrence of alopecia areata and to improve the awareness of research ethics.