• Korean journal of communication and information
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• v.32
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• pp.169-207
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• 2006

This study conducted both a content analysis and Q-methods analysis in order to find media coverage and recognition type of users about ubiquitous environment in digital online age. The perception type of this study were divided into four types in all through Q-methodology. Above all, this study investigated three research problems. First, how is the type of the perception divided into the subjectivity by recognition-characteristic on ubiquitous environment in Korea? Second, what is a trait of character in these same or different types? Third, how did news media cover ubiquitous phenomena overall? Fourth, is there any difference between media coverage and audiences' perception about ubiquitous phenomena? The results show that audiences seem to generally follow the frames that mass media provide. In addition, however, the audiences tend to recognize ubiquitous environment based upon their own schema as following four types: 1. Positive Universality Leading Type, 2. Uncertain Prudence Preference Type, 3. Future Cultural Enjoyment Type, 4. Negative Effect View Type. This study suggests that every efforts such as technology and policies that can improve the quality of ubiquitous environment in Korea should be accompanied.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.9 no.1
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• pp.214-220
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• 2008

This study aims to design a digital portfolio assessment system in ubiquitous computing(DPASUbi). To achieve that goal, the following issues were worked: Review of various theoretical discussions on portfolio and an analysis of existing programs to select elements to be included in the DPASUbi. Educational evaluation scenarios for the DPASUbi were developed based on the elements. The system was designed on reflecting these elements, that is, learning activities, assessment and usage of portfolio, ubiquitous technology and database. This system will provide guidance on what methods and assessment procedures should be applied in the ubiquitous computing environment totally different from the conventional one. Also, The new system will be helpful in indicating what kind of techniques should be required in the real educational evaluation.

• The Journal of Korean Association of Computer Education
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• v.9 no.6
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• pp.79-87
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• 2006

An ubiquitous environment has been developed in order to allow users to use information more easily. These environments are based on advanced development of mobile ubiquitous hardwares. Currently, a various user interfaces are developed for mobile ubiquitous devices using the graphic or voice. In this paper, propose a specialized graphical user interface which is based on analysis of a user profile. This user interface can provides suitable interface for individual users using XML information on the small screen of mobile ubiquitous devices.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.16 no.2
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• pp.3-12
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• 2006

The spread of mobile devices, PDAs and sensors has enabled the construction of ubiquitous computing environments, transforming regular physical spaces into 'smart space' augmented with intelligence and enhanced with services. However, unless privacy concerns are taken into account early in the design process of various ubiquitous devices(e.g. mobile devices, PDAs, sensors, etc.). we will end up crating ubiquitous surveillance infrastructure. Also, it may inappropriate to use public key techniques for computational constrained devices in ubiquitous computing environment. In this paper, we propose efficient user authentication and ky agreement protocol not only to preserve anonymity for protecting personal privacy but also to be suitable for computational constrained devices in ubiquitous computing environments.

• Digital Contents
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• no.7 s.146
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• pp.59-61
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• 2005

정보통신 분야는 물론, 문화, 교육 등 생활 속 모든 분야에서 유비쿼터스라는 수식어가 따라다니고 있는 것을 많이 볼 수 있다. 관련 전문가들은 2010년경에는 유비쿼터스가 우리 생활에서 대중화가 될 것이며 이에 따른 부가가치 규모도 80조원에 이를 것으로 전망하고 있다. 교육 분야도 아날로그 환경 하에서 주변 환경 변화에 더디게 반응해 왔던 과거와 달리 최근 조금은 걱정스러울 정도로 IT의 신기술에 발 빠르게 적응하면서 e러닝, T러닝, M러닝, U러닝 등의 새로운 신조어들이 생겨나고 있다. 이에 진정 살아 있는 e러닝의 최종 모습이라고 불려지고 있는 유비쿼터스 학습(U러닝)에 대해 살펴보고, U러닝이 성공하기 위해서는 어떠한 요소들이 필요한가에 대해 살펴봤다.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2005.05a
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• pp.489-496
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• 2005

최근 새로운 정보기술의 패러다임으로 이슈가 되고 있는 유비쿼터스 컴퓨팅이 기술은 행정, 경제, 의료, 교육, 문화 등 사회 곳곳에 적용될 것으로 예상되고 있으며, 그에 따라 비즈니스 모델에 대한 중요성도 증대되고 있다. 그러나 기초 기술, 표준화, 보안 등에 관련된 연구가 중심을 이루고 있을 뿐, 비즈니스 모델과 관련된 연구는 미흡한 실정이다 본 연구에서는 유비쿼터스 컴퓨팅 환경에서 등장하는 다양한 비즈니스 모델에 대해 사업화 이전 단계에서 보다 효과적으로 사업화 가능성을 평가함으로써 사업자가 유망한 비즈니스 모델의 도출이 가능하도록 하는 평가체계를 제시한다.

• The Magazine of the IEIE
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• v.32 no.4 s.251
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• pp.116-127
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• 2005

본 논문은 커뮤니티라는 메타포(metaphor)를 이용한 유비쿼터스 컴퓨팅 환경의 구축에 관한 문제를 고찰한다. 이를 구현하기 위한 방법으로 먼저 커뮤니티 기반 컴퓨팅의 포괄적인 개념과 기술 이슈를 정립하였고, 커뮤니티의 효과적인 상호작용을 지원하기 위해 통합 프레임워크를 이용, 상황인지기반 커뮤니티 관리 컴포넌트들을 설계하고자 했다. 본 논문의 결과로서 커뮤니티의 클래스와 라이프 모델, 커뮤니티 기반 컴퓨팅을 위한 시스템 아키텍처를 도출하였다 이로써 복합적인 유비쿼터스 서비스를 자율적으로 제공하기 위한 유비쿼터스 환경 구축기반을 마련하였다.

• Proceedings of the Korea Contents Association Conference
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• 2005.11a
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• pp.294-299
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• 2005

Internet and wireless Internet were diffused fast with the supply of a portable danmal. New services which materialize a Ubiquitous computing environment are appearing therefore. We apply such Ubiquitous environment to an automation system in this paper at the campus.

• Journal of the Korea Society of Computer and Information
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• v.11 no.4 s.42
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• pp.27-33
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• 2006

In the near future, we can access information which we want, whenever we want, wherever we use. Because almost devices in ubiquitous environment are connected by either wired or wireless network. Especially, u-Learning emphasizing on pedagogical property is enable to improve learning abilities. As researches of the previous u-Learning. there have been learning by mobile devices such like PDAs as well as the smart classroom, which makes the remote students participate in the existing class. However, these researches have not satisfied pedagogical, cooperative and ubiquitous properties yet. Thus we suggest the framework for both local and mobile classroom, which can make the properties easy to satisfy.

• Information and Communications Magazine
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• v.23 no.8
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• pp.74-84
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• 2006

본 논문은 가정이나 사무실, 차량 등의 인간의 생활환경과, 각종 전기 및 전자, 기계 장치에 근거리 무선 통신 창치가 설치된 유비쿼터스 환경에서, 개인이 장소를 옮겨가더라도 선호하는 환경을 자동적이고 지능적으로 구축해주는 개인 환경 서비스에 관한 것이다. 제안된 서비스는 그 목적과 내용이 구체적이고 일반 사용자에게 매우 유용하므로 유비쿼터스 홈 서비스의 킬러 애프리케이션이 될 것이다.