• Journal of the Korean Society for Library and Information Science
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• v.39 no.2
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• pp.35-55
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• 2005

This study attempts feasibility analysis of cataloging outsourcing. The economic analysis model based on information economics categorizes the benefit into direct benefit and value linking. We measure direct benefit by cost savings and cost avoidance, value linking by the degree of improvement in cataloging quality The results show that there is no feasibility overall, because librarians spent more time to control the quality due to vendor's lack of professionalism, resulting little effect on cost savings. When cataloging outsourcing is forcibly used under the economically infeasible condition, it is impossible to achieve the basic purpose of operating cost savings and improvement of service function.

• Journal of Digital Contents Society
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• v.6 no.3
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• pp.163-168
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• 2005

Computing infrastructures and technologies are moving into the distributed environments. Due to increase of M&A, and outsourcing processes, or increase or development of various system in an organizations, there are various problems resing such as difficulties in maintenance and repairment, repetition or inconsistency of data, and lacks of interconnection between different of difficulties in financing and selecting an adequate solutionas. This study presents a method to integrate systems adopting massage middleware as an efficient alternative for integration of applications and data between different models under distributed system environments. We expect that the integration method presented in this study, adopting massage middleware between system, will be an efficient alternative to build up interface between small system in terms of expense and efficiency.

• Proceedings of the Korea Information Processing Society Conference
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• 2002.04a
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• pp.323-326
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• 2002

본 논문은 웹 상에서의 데이터 교환 및 정보 전달은 물론 분산 환경 내에 산재한 어플리케이션들 간의 통신 및 정보 시스템들 간의 상호 운용을 지원하는 CORBA 기반의 XML 정보 관리 시스템을 설계한다. 최근 웹 상에서 정보교환을 통해 다양한 업무들을 효율적으로 처리하려 함에 따라 분산 환경에서의 컴퍼넌트 기반과 웹 기반 어플리케이션들의 연동이 요구된다. 그러나, 이러한 어플리케이션들의 연동 시 직접적인 호환성이 결여되어 별도의 프로토콜 지원이 필요하다. 따라서, 본 논문에서는 이러한 호환성 문제를 해결하기 위해 XML을 사용하여 플랫폼 및 프로그래밍 언어에 대한 독려성과 확장성을 제공하고, 객체 직렬화를 통해 직렬화된 XML 문서를 CORBA의 IIOP를 이용해 전송함으로써 데이터 교환 및 공유가 가능하도록 지원하는 XML 정보 관리 시스템을 설계한다. 제안된 시스템은 윈 상에서의 정보 교환 및 공유를 지원함으로써 보다 유연한 정보 교류 환경을 제공하고, 이질적인 어플리케이션들로 구성된 비즈니스 로직들 사이의 정보 처리에 있어 상호 운용성을 지원하여 효율적인 업무 처리가 가능하도록 한다. 또한, XML20RDB 저장기와 ORDB2XML 생성기를 구성 모듈로 설계하여 웹 상에서의 모든 정보를 공통 포맷인 XML 형태로 저장 및 관리함으로써 정보의 재사용성 및 효율적인 관리를 유도한다.

• Journal of the Korean Society for information Management
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• v.10 no.2
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• pp.111.1-111.1
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• 1993

There are two types of bibliographic database, the one IS bibliographic database with creativlty. theother is bibliographic database without creativlty, The purpose of this paper is to investigate the problemsof bibliographic database with creatlvity by giving consideration of copyright law and the problems ofbihographic database w~thout creat~vity by sui genem system. Thus thls paper provided the methods thatresolve the problems of the current copyright law in order to protect all types of database being producedby way of the cooperation between the libraries and the information service centers. Secondly, this paperprovlded the legal devlces to protect bibliographic database produced by the libraries wh~ch cannot beprotected due to the lack of the creatlvity in the selection or arrangement of the material.

• Journal of the Korean Society for information Management
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• v.10 no.2
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• pp.111-143
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• 1993

There are two types of bibliographic database, the one IS bibliographic database with creativlty. the other is bibliographic database without creativlty, The purpose of this paper is to investigate the problems of bibliographic database with creatlvity by giving consideration of copyright law and the problems of bihographic database w~thout creat~vity by sui genem system. Thus thls paper provided the methods that resolve the problems of the current copyright law in order to protect all types of database being produced by way of the cooperation between the libraries and the information service centers. Secondly, this paper provlded the legal devlces to protect bibliographic database produced by the libraries wh~ch cannot be protected due to the lack of the creatlvity in the selection or arrangement of the material.

• The KIPS Transactions:PartC
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• v.15C no.2
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• pp.103-110
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• 2008

Internet telephone uses VoIP as its communication protocol, where it provides various additional services with inexpensive fare when the terminal is connected to the Internet. The existing auto provisioning systems that manage Internet telephone terminals are targeting large size VoIP service providers or enterprises, and has few consideration on the convenience of management for small size environments. The difficult installation and management procedures of the current auto provisioning systems prevents Internet telephone system from getting popular. Easy installation and management system is needed in order to spread out Internet telephone system. In this paper, we design and implement the auto provisioning system that provides easy installation and management services in small size environments such as SOHO environments.

• Proceedings of the Korea Information Processing Society Conference
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• 2001.04a
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• pp.251-254
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• 2001

대표적인 분산 객체 환경을 위한 프레임 웍으로 1990년대 초 OMG(Object Management Group)에서 발표한 CORBA(Common Object Request Broker Architecture)를 들 수 있다. 이것은 분산, 이기종 환경에서 객체기반 응용 프로그램들의 재사용성(reusability), 이식성, 상호 운용성(interoperability)을 위한 공통 프레임 ???p이다. 하지만 표준 CORBA는 실시간 응용 프로그램 지원을 위한 한계점을 내재하고 있으므로 이를 그대로 적용하기에는 적합하지 않다. 때문에 RT-SIG(Real-Time Interest Special Croup)에서는 실시간 어플리케이션을 지원하기 위한 일련의 작업이 이루어 졌고, 그 산물로는 TAO(The Ace Orb)와 NraD(US Navy Research and Development), lona 사의 Orbix ORB, Lockheed Martin 사에서 개발한 CORBA 등이 있다. 하지만 표준 CORBA 명세서에 따르면 COS(CORBA Object Service)중의 하나인 이벤트 서비스는 실시간 응용프로그램을 지원하기 위해 필요한 실시간 디스패칭과 스케줄링의 보장, 중앙 집중화된 이벤트 필터링과 상관성을 위한 명시, 주기적 처리 지원 등의 기능이 결여되어 있기 때문에 이를 지원하는 실시간 이벤트 서비스가 요구된다. 이러한 요구에 부합하기 위해 필요한 요구사항을 자바 API 형태로 구현하고 향후 성능에 대한 개선 방향을 제시한다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.12 no.10
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• pp.1717-1722
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• 2008

A number of tools and equipment can measure the degree of stress. Stress measurement includes both psychological and physiological measurements. Considering only one of these elicits subjective or objective deficiency. Overcoming this problem requires a new stress index that combines these two measurements. Following people's personal traits, the measurement results also appear in diverse ways, but we can consider and study the general case obtained on the basis of the measurement tool. By using the index obtained by the psychological and physiological measurement tools, we obtain an integrated stress index. Therefore, we choose to use four stress measurement tools. The index of the result of each measurement tools is referred to as the multi-index. These indices are plotted on coordinates to analyze and diagnose the balance and tendency of the stress.

• Proceedings of the Korea Water Resources Association Conference
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• 2015.05a
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• pp.341-345
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• 2015

최근 기존의 SMS(Surface Modeling System) 모형에 Tuflow모듈이 추가된 형태로 새로운 버전이 출시되면서 윈도우버전에서 2차원 홍수범람모의가 가능하게 되었다. 따라서, 본 연구에서는 Tuflow모형이 추가된 SMS ver.11.2.7을 활용하여 2차원 홍수범람 분석을 실시하고 이에 따른 2012년에 발생한 실제 침수구간과의 비교를 통하여 Tuflow모형의 실제 적용성을 검토하고자 하였다. 적용대상유역은 2012년도 침수가 발생하였으며, 전제 침수 지역 21개 중 하천내 수문을 통하여 침수가 발생한 지역, 내수침수가 발생한 지역 등을 제외한 순수하게 하천의 범람으로 인한 침수구역인 2개 지역을 대상으로 하여 하천범람모형의 재현성을 검토하였다. 검토결과, 2개 지역에 대한 공간적인 홍수범람의 재현성은 침수면적으로 판단해 볼 때 우수한 것으로 판단되었으며, 침수심으로는 침수조사의 자료가 미흡한 상황으로 명확하게 판단하기는 어려운 것으로 나타났다. Mesh작성의 숙련도, GRID의 크기 등과 같은 기술적 요인과 더불어 침수흔적의 정확한 구획선의 결여 등으로 인하여 비교적 정확한 비교는 불가하였으나, 지형자료를 활용하여 2차원적 접근을 시도한 결과 침수흔적과 홍수범람의 재현성은 다소 우수한 것으로 평가할 수 있는 것으로 나타났다. 다만, 향후 보다 정확한 침수흔적이나 침수자료의 구축을 통하여 보정, 검정 등을 실시한 후 홍수범람의 재현성을 신뢰할 만한 추가적인 연구가 지속적으로 이루어져야 할 것으로 판단된다.

• Archives of design research
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• v.18 no.3 s.61
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• pp.85-94
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• 2005

Most of product designers use 3D CAD system as a inevitable design tool nowadays and many new products are developed through a concurrent engineering process. However, it is very difficult for novice designers to get the sense of reality from modeling objects shown in the computer screens. Such a intangibility problem comes from the lack of haptic interactions and contextual information about the real space because designers tend to do 3D modeling works only in a virtual space of 3D CAD system. To address this problem, this research investigate the possibility of a interactive quantified structure simulation for product design using AR(augmented reality) which can register a 3D CAD modeling object on the real space. We built a quantified structure simulation system based on AR and conducted a series of experiments to measure how accurately human perceive and adjust the size of virtual objects under varied experimental conditions in the AR environment. The experiment participants adjusted a virtual cube to a reference real cube within 1.3% relative error(5.3% relative StDev). The results gave the strong evidence that the participants can perceive the size of a virtual object very accurately. Furthermore, we found that it is easier to perceive the size of a virtual object in the condition of presenting plenty of real reference objects than few reference objects, and using LCD panel than HMD. We tried to apply the simulation system to identify preference characteristics for the appearance design of a home-service robot as a case study which explores the potential application of the system. There were significant variances in participants' preferred characteristics about robot appearance and that was supposed to come from the lack of typicality of robot image. Then, several characteristic groups were segmented by duster analysis. On the other hand, it was interesting finding that participants have significantly different preference characteristics between robot with arm and armless robot and there was a very strong correlation between the height of robot and arm length as a human body.