• Information and Communications Magazine
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• v.22 no.7
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• pp.67-80
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• 2005

In these days, international Ubiquitous Cities are being developed in many places, and their settings, aims, designs, organizations, and functionality differ among many different kinds of solutions and systems. This paper has been based on quantitative and qualitative research, and used lots of relevant data and information. Even though Ubiquitous cities are generally conceived as local information infrastructures and as a means for enhancing democratic participation, users primarily appreciate it as a tool for communication. We also observed among others, how cyberspace reproduces the dynamics of established and outsiders, which inclines us to think that virtual public is not as open as is often claimed. However, Ubiquitous cities will always offer you more comfortable life than ever from now on.

• IEMEK Journal of Embedded Systems and Applications
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• v.1 no.2
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• pp.56-63
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• 2006

In this paper, we propose the integrated security management framework supporting the trust for the ubiquitous environments. The proposed framework provides the gathering and analysis of the security related information including the location of mobile device and then dynamically configures the security policy and adopts them. More specially, it supports the authentication and delegation service to support the trusted security management for the ubiquitous networks. This system also provides the visible management tools to give the convenient view for network administrator.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 2005.11a
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• pp.395-398
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• 2005

유비쿼터스 공간 내에서 사용자의 상황을 파악하고 적합한 서비스를 제공하기 위해서는 상황을 정확하게 이해하는 것이 필요하다. 따라서 본 논문에서는 홈 네트워크에 접속한 센서나 기기를 사용하여 환경이나 상황의 변화에 따른 적합한 서비스를 제공받을 수 있는 방법을 제안한다.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 2004.10a
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• pp.535-538
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• 2004

유비쿼터스(Ubiquitous) 환경은 인간이 생활하는 각종 기기들이 컴퓨팅 능력과 네크워킹 능력을 가지고 상호간에 정보를 교환하며 서비스를 제공하는 것을 말한다. 이러한 유비쿼터스 컴퓨팅 환경에서 사용자의 감정, 상태 또는 의도에 기반하여 특화된 서비스를 지능적으로 제공하기 위해서 사용자의 컨텍스트-인식(Context-Awareness)이 필수적이나 이와 관련된 연구가 아직은 미흡한 상황이다. 본 논문에서는 인식된 여러 가지 상황정보를 체계적으로 표현할 수 있고, 최종 컨텍스트를 활용하여 사용자의 감정이나 의도를 분석하고 개인화된 서비스를 능동적으로 제공하는 지능형 에이전트 구조를 제안한다.

• Journal of the Institute of Electronics Engineers of Korea CI
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• v.44 no.1
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• pp.19-25
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• 2007

In the ubiquitous environment, the interoperability among the several agencies or systems can be realized by the common information model of the applications The common information model plays role of the core in the several application. In this paper, we proposed the ubiquitous information model as the core and developed the ubiquitous information markup language can be used to the any ubiquitous environment.

• Proceedings of the Korea Inteligent Information System Society Conference
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• 2005.11a
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• pp.147-156
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• 2005

In developing the ubiquitous computing technology based services (ubiquitous services), evaluating how much value of those services is created or added is very crucial. The efforts to evaluate the ubiquitous services have been progressed in two perspectives - technical perspective and behavioral perspective. Despite its importance, however, the methodologies which integrate both perspectives have been still very rare. Hence, this paper aims perspectives have been still very rare. Hence, this paper aims to propose an integrated ubiquitous service valuation methodology based on the multi-layered approach including technical and behavioral perspectives. To do so, we conducted a case study with currently existing location based service (LBS) such as navigation systems by conducting focus group interview (FGI) and field survey.

• 한국디지털정책학회:학술대회논문집
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• 2006.12a
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• pp.409-418
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• 2006

The purpose of this paper is to present a low cost u-City portal development idea and to propose an exclusive system architecture using 3-D interface layers. 3-D interface layers consist of reused ideas of data from existed public data produced from GIS in order to reduce Produce Processes. 3-D interface layers implement a u-City portal systems that tags from physical spaces 1 ink to mobiles from ubiquitous networks between electronic spaces and physical spaces. Primary produce of this study exhibits an exclusive architecture of a u-City portal for speedy and low cost web 3-D interface layers and GIS data, and for implementation interface of 3-D types on USN of physical spaces. Secondary produce of this study represents that a 3-D u-City portal system has visualized speedy implementation characteristics for implementation of the application systems to execute an ubiquitous concept by returning electronic space to physical space, and to present the low cost 3-D u-City portal than an existed 3-D u-city development strategy. Therefore continuous expansion and study of the 3-D interface physical space under a 상황인지(Context Awareness)ubiquitous will appear the innovated u-City portal systems.

• 한국경영정보학회:학술대회논문집
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• 2007.11a
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• pp.273-277
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• 2007

Ubiquitous computing environment accelerates the advent of the IT Ecosystem. In the coming generation, a massive number of ubiquitous devices and services are converged into an ultra-large-scale system. In this context, high degrees of complexity and organization change the paradigm of knowledge and its management levels. The objective of this paper is to explore the Knowledge Management Systems in view of demands in ultra-large-scale systems. We introduce motivation for Next-Generation (NG) usage and their upcoming requirements. The possible applications will be discussed, and summary of different techniques are conducted. The tools and techniques that allow KMS to operate as "Vital Success Enabler" to achieve organizational benefits will be examined. Potential future directions for research are highlighted: these include advances in knowledge capture, storage / retrieval and sharing techniques, in particular with the surrounding role of information technology.

• Journal of the Society of Disaster Information
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• v.6 no.2
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• pp.87-106
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• 2010

This research focused on the effect of the GIS, uIT, and RS based smart disaster systems. Ubiquitous IT strongly involved in intelligent analysis for the natural disasters. Remote sensing technologies, such as hyper-spectral imaging, MODIS, LiDAR, Radar, and optical imaging processes, can contribute many means of investigation for the natural and unnatural problems in the atmosphere, hydrosphere, and lithosphere. Recent IT trends guides abundant smart solutions, such as automatic sensing using USN, RFID, and wireless communication devices. Smart monitoring systems using intelligent LBSs will produce many ways of checking, processes, and controls for the human safeties. In results, u-smart GIS, uIT, and RS based disaster systems must be using ubiquitous IT involved smart systems using intelligent GIS methods.

• Journal of Intelligence and Information Systems
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• v.14 no.4
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• pp.161-178
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• 2008

Development and realization of ubiquitous services in physical space is now in progress to develop ubiquitous smart space (USS). As the development methodologies for USS, scenario development is performed before requirement analysis and design, or vice versa. However, even though lots of redundant elements could be found between scenarios and requirement analysis results, a sort of structural approaches to join them together has been still very rare. Hence, the aim of this paper is to propose a system which generates ubiquitous service senarios and system analysis specifications according to a novel integration methodology. To do so, scenario and requirement analysis are integrated in a structured manner.