• The KIPS Transactions:PartC
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• v.12C no.5 s.101
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• pp.659-664
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• 2005

Advanced countries overhaul government workflows using IT, which not only enhances efficiency and productivity, but paves the way to a 'e-Government' offering prompt, quality service for citizens. This research analyzes the DiD(Defense-in-Depth Strategy) and compares the information protection strategy of Korean e-Government with DiD for reliable and safe e-Government's build.

• Proceedings of the Korean Information Science Society Conference
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• 2002.04a
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• pp.394-396
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• 2002

'분산 모의훈련 전장환경'은 실제 또는 가상전쟁, 전투 등 군사 상황을 묘사하기 위해, 둘 또는 그 이상의 적대 세력간에 발생하는 군사적 상황을 게임규칙, 자료 및 절차를 사용하여 모의하는 군사작전 게임(war game)을 의미한다. 이는 컴퓨터와 네트워크를 이용한 '합성 가상 전장환경'에서 구현되는데, 특성상 다수의 게이머와 게이머, 게이머와 객체, 객체들간에 네트워크를 통한 빈번한 메시지 송.수신을 통한 정보를 교환하고 실시간으로 상호동작 한다. 즉, '합성 가상 전장환경'의 구현을 위해서는 신뢰성과 실시간성을 보장하는 다자간 통신의 보장이 핵심을 이룬다. 그러나, 일반 인터넷상의 브로드캐스팅 기술을 적용할 경우, 가상전장환경에서 폭주하는 통신량을 실시간으로 처리하기엔 어려운 문제점이 있다. 따라서 '합성 가상전장가상환경'의 보다 효과적인 구현을 위해서는 고신뢰 실시간 다중 그룹통신 기술의 개발이 요구된다. 본 논문은 그룹통신 개념에 기반하여 가상 합성 전장 환경에 적용할 수 있는 효율적인 전송 서비스를 위한 네 가지 전송 알고리즘을 제시하며, API 설계를 통해 서비스를 구현한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2018.05a
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• pp.399-401
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• 2018

몇 년 사이에 IoT는 통신 프로토콜과 디바이스 중심의 단순한 개념에서 점점 진화 하여, 디바이스, 인터넷기술, 그리고 사람(사물, 데이터 등)이 보안, 프라이버시, 신뢰도 문제를 해결하는 것까지 포함한 비즈니스 혁신, 재현성, 상호 운용성을 위한 완전한 생태계를 창조하는 것으로 개념이 바뀌어 가고 있다. IERC는 실제와 가상의 사물들이 고유특성과 물리적 가상적 특성을 가지고 있고, 지능형 인터페이스를 사용하며, 끊김없이 정보네트워크를 통합 하는 표준과 상호운용 통신 프로토콜을 기반으로 자기 스스로 재구성이 가능한 동적인 글로벌 네트워크 인프라로 정의함으로써 IoT의 범위를 인프라까지 확대 정의하고 있는 추세이다. 이와 같은 IoT 영역이 확대되면서, 일반적으로 IoT의 4대 기술 분야를 센싱기술, 유 무선 통신 네트워크 기술, 플랫폼 기술 및 서비스 기술로 분류하고 있으며, 이 중에서 다양한 전파서비스를 제공하기 위해서는 무선통신망 구축이 필수이며, 이를 실현하기 위해서는 주파수 자원 확보가 매우 중요하다. 본고에서는 이를 실현화 시킬 수 있는 동북아지역 IoT주파수 동향 및 표준화에 대하여 결과를 제시하고자 한다.

• Management & Information Systems Review
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• v.30 no.1
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• pp.1-37
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• 2011

Prior researches on Internet shopping have focused on cognitive, technological factors, but this research is focused on emotions experienced during internet shopping. Examines emotion types experienced during internet shopping and shopping mall characteristics influencing emotional response and effect of emotions on internet shopping behavior, specifically focusing on shopping motivation difference. The data, collected from a sample of 323 internet shoppers, indicate that emotion types experienced during internet shopping and shopping mall characteristics influencing emotional response and emotional response influencing internet shopping behavior are difference among shopping motivation. Theses results provide insights on internet shopping mall management according to shopping motivation.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.16 no.6
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• pp.9-14
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• 2016

The Korea Communication Commission(KCC) measures communication qualities of mobile phones' voice calls, mobile internet, and broadband internet to provide quality communication services. It particularly focuses on measuring qualities of mobile internet data that is on the rise in terms of usage. However, existing quality measurement simply measures the speed of mobile communication through data without providing much information to users and does not disclose measured data, making it hard for individuals to objectively determine their communication quality. Thus, to improve such problems, the author suggests a system that measures qualities of mobile communication through Android. The method guarantees user convenience and reliability and improved mobile communication by making it easy for users to select the quantity of data to be used. It also saves the current GPS obtained through GPS module or mobile communication network and transfers measured data to servers so that the data can be processed into new information and be reinterpreted.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.25 no.2
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• pp.439-448
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• 2015

IoT (Internet of Things) propels current networked communities into a advanced hyper-connected society/world where uniquely identifiable embedded computing devices are associated with the existing internet infrastructure. Therefore, the IoT services go beyond mere M2M (Machine-to-Machine communications) and should be able to empower users with more flexible communication capabilities over protocols, domains, and applications. In addition, The access control in IoT need a differentiated methods from the traditional access control to increase a security and dependability. In this paper, we describe implementation and design of the capability token based system for secure access control in IoT environments. In the proposed system, Authorities are symbolized into concepts of the capability tokens, and the access control systems manage the tokens, creation, (re)delegation and revocation. The proposed system is expected to decrease the process time of access control by using capability tokens.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2012.10a
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• pp.190-192
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• 2012

최근 소셜 네트워크 서비스는 언제 어디서나 정보를 누구라도 손쉽게 전달하고 볼 수 있는 수단으로 각광받고 있다. 소셜 네트워크 서비스의 주요한 특징은 사람과 사람, 사람과 정보, 정보와 정보 간의 관계 네트워크로서, 사용자가 능동적으로 참여한다는 것이다. 하지만 범람하는 수많은 정보들 속에서 사용자가 직접 정보를 검색 및 분류해야 하는 과정은 사람과 정보간의 관계 네트워크 측면에서 소셜의 의미를 충족하지 못한다. 이러한 기존의 정보 활용법은 사용자의 선호도에 따른 맞춤형 정보의 수용과 공유를 제시하지 못하고 있다. 본 연구에서 설계된 사용자 맞춤형 서비스 시스템은 사용자의 상황인식 속성정보와 이에 따른 선호도를 평가하는 알고리즘을 기반으로 하여 보다 효율적인 커뮤니티 공간이 제공될 수 있는 맞춤형 커뮤니티 서비스 시스템을 설계 제안한다. 제안된 시스템에서는 소셜 네트워크 서비스에서 사용자가 텍스트를 읽거나 작성하는 행위를 바탕으로 사용자의 관심사를 제공된 알고리즘으로 분석하여 사용자의 선호도에 따른 정보를 분류하고, 사용자의 인적정보로부터 선별한 유사 사용자들을 통해 신뢰성이 높은 정보를 우선적으로 선출한다. 따라서 사용자의 속성과 선호도를 고려한 상황인식 정보를 제공함으로써 사용자가 직접 정보를 검색 및 분류하는 과정을 단축하고 정보의 신뢰성을 향상할 수 있는 방법을 제시한다. 이러한 상황인식 기반의 맞춤형 커뮤니티 서비스 시스템은 실시간으로 많은 정보가 공유되는 서비스에서 다양하게 적용되어 인터넷 신문, 타겟 마케팅 광고 등의 응용분야에서 다양한 정보제공 서비스 시스템으로 적용될 수 있을 것으로 본다.

• Management & Information Systems Review
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• v.34 no.1
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• pp.1-20
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• 2015

This study analyses the relationship with the feature of the web usability and Social commerce. Therefore, this research tries to investigate the relationship about in which the characteristic of the web-site usability is connected through the confidence about the Social commerce site to the re-purchase. The existing research that the information system and Electronic commerce relates is considered and the usability factor about the Social commerce site tries to be drawn and these try to verify on the relationship with the trust building of the user about the Social commerce site and purchasing intention through the positive research. The result is follows. First, the visual property of the Social commerce site was confirmed to have the descriptive ability noted to the confidence. Second, it was confirmed to have the descriptive ability that information characteristic about the Social commerce site notes to the confidence. Third, it was confirmed to have the descriptive ability that relative characteristic about the Social commerce site notes to the confidence. The importance of the web-site usuability has preferentially to be considered in being put through this research and building the confidence of the social commerce user could be known. When running with the social commerce site design, this is determined because it can become the useful standard.

• International Commerce and Information Review
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• v.4 no.2
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• pp.253-277
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• 2002

Nowaday, the advanced technology in information and communication has been leading the dramatic change of transaction paradigm expansion from physical basis to electronic one. As we know, financial services support most of financial exchange between two business parties. So the expansion of electronic transaction paradigm affects to every financial institutions which provide financial services. Thus, financial institutions have accepted e-Finance systems and providing internet financial services to live in the competition. The purpose of this study is to contribute the qualitative enhancement of its customer service, rapid diffusion and accurate strategy establishment for e-Finance industry in the user side. Through the literature review and factor and reliability analysis, this study selects six diffusion factors such as efficiency of perceived e-Finance, reliability and safety of e-Finance in perceived e-Finance itself's characteristic; confidence, technical factors and the customer service quality of e-Finance system in perception on e-Finance System; inclination to innovation in the personal characteristic. According to result of hypothesis verification by using logistics regression analysis, technical factors and the customer service quality of e-Finance system in perception on e-Finance System and inclination to innovation in the personal characteristic gave statistically positive effect to the diffusion decision at the significant level 0.05 and 0.01. However efficiency of perceived e-Finance, reliability and safety of e-Finance in perceived e-Finance itself's characteristic didn't affect to diffusion decision and confidence of e-Finance system in perception on e-Finance System didn't have any statistical significancy. This study can be used as a basic material for the forward empirical study of diffusion factors in the user side and be able to apply to company and government policy making or embodiment, determination for customer service quality degree of financial institutions. But this study has some limitations like didn't touch satisfaction factors and its effect, only deal domestic customers and didn't use multi-regression analysis.

• Journal of Internet Computing and Services
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• v.6 no.6
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• pp.35-44
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• 2005

It is essential for any public institution to establish a systematical scheme and a management system to maintain the contents and securities of its ever-expanding web-site with efficiency. The general users want a reliable system and a simple and stress-free web environment and expect the public institutions to maintain the accuracy and conformity of information they provide to the public. In this study, I examined a web-site owned by a certain governmental research institute for the current maintenance status and problems to seek an effective and easy-to-use scheme for both users and web managers. Based on what I learned from my study, I moved on to design a web integration system and tested it on the above mentioned web-site for analysis.