• The Journal of the Korea Contents Association
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• v.6 no.9
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• pp.67-74
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• 2006

Resently, We suggested u-Korea strategy to manage and develop a nation based on national ubiquitous technology using mobile.. therefore many a local self-governing body is writing out u-City construction plan to build most suitable future city in oneself environment. In this paper, after analyze tendency and character of ubiquitous related plans, it makes a plan international youth digital film festival based on ubiquitous technology in jinju. And it suggest strategy of digital film or game industry on a department of digital contents industry. also, an opportunity this paper propose research scheme of early level for u-Jinju of city-farm composition supported ubiquitous service in all the jinju area.

• The Journal of the Korea Contents Association
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• v.7 no.11
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• pp.130-139
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• 2007

As increasing the usefulness of wireless communication, there are developing the environment of ubiquitous that is combined the network of wireless and wire communication combinate type in various filed and in this network environment, u-campus constructions, based on ubiquitous sensor network, is developing. u-Campus is the new type campus which applies to ubiquitous computer technology and wireless network one. at this thesis, it is designed u-campus construction using zigbee technology with u-campus basic technology. u-Campus service, being subject to zigbee wireless communication skills, presents the members an convenient service using zigbee network.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• v.9 no.1
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• pp.760-762
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• 2005

현재 일반적으로 사용하고 있는 인터넷은 컴퓨터와 네트워크를 연결한 것이다. 그런데 RFID는 여기에 덧붙여 컴퓨터와 네트워크 그리고 모든 사물을 결합, 융합하는 기술이다. 그렇기 때문에 가상공간과 물리공간이 만나는 세계이다. RFID는 유비쿼터스 시대의 가장 핵심적인 기술로 고유의 ID를 갖는 모든 사물이 네트워크로 연결되어 언제 어디서나 실시간으로 통하는 IT 산업의 신 성장 동력이다. 그러므로 종이컵과 같은 아주 작은 사물에도 그 제품에 대한 모든 정보가 소형 칩에 집적되어 어느 곳에 있든지 자동식별이 가능하게 된다. 예를 들어, 길을 가다가 종이컵을 버려도 그 종이컵을 누가 버렸는지에 대한 정보까지 알 수 있는 것이다. 이러한 RFID 기술 융합 지향의 유비쿼터스 환경에 따른 경제는 기술, 비즈니스, 산업의 접목과 융합에 의한 새로운 공간가치와 재화창출의 특성으로 갖게 될 것이다. 물론 RFID는 범죄에 악용될 소지가 있지만, 상용화가 되면 이런 단점보다는 우리의 삶의 획기적인 변화와 함께 자동화에 엄청난 영향을 몰고 올 것이다. 앞으로의 주된 과제는 RFID가 유비쿼터스 네트워크의 핵심이 될 수 있는 기반 기술로써의 위치를 확보하는 것과, 표준 ID 체계 및 관리기능의 정립, 유비쿼터스 애플리케이션의 개발에 두어야 한다. RFID를 이용한 기술적 유비쿼터스 시대는 분명 멀지 않은 미래가 될 것이다.

• Annual Conference of KIPS
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• 2007.11a
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• pp.903-906
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• 2007

유비쿼터스 컴퓨팅 환경이란 생활 속에 존재하는 컴퓨팅 자원들을 이용해 사용자가 언제 어디에서든 편리한 서비스를 제공받을 수 있는 환경을 의미한다. 유비쿼터스 환경에 존재하는 수없이 많고 다양한 컴퓨팅 자원들을 사용자가 최적으로 사용하기 위해서는 사용자가 어떤 상황에 있으며 이때 어떤 자원이 사용자의 현 상황에서 가장 적절한지를 판단하는 것이 반드시 필요하다. 본 논문에서는 이를 위하여 사용자가 현재 존재하는 유비쿼터스 공간에서 사용자의 상황을 인식하고 사용 가능한 최적의 자원들을 공유할 수 있도록 추천해주는 상황 기반 디바이스 추천 시스템을 제안한다. 우리의 추천 시스템은 상황에 따른 사용자 개개인의 특성이 고려된 사용자의 개인정보 및 규칙들을 이용하여 사용자의 상황에 최적의 디바이스를 추론한다. 향후 제안한 서비스 추론 방법은 유비쿼터스 환경에서 더 나은 개인화 서비스 시스템의 개발 및 운용을 효과적으로 지원할 수 있을 것으로 기대된다.

• The Journal of Society for e-Business Studies
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• v.13 no.2
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• pp.117-147
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• 2008

Developing various ubiquitous computing services (U-services) is being propelled throughout the industry. As U-services are being penetrated into our daily life, research on the factors influencing the acceptance of U-services is highly needed. In this line of study, we examined previous literatures about information technology acceptance and UTAUT model, and applied UTAUT model to U-service acceptance. To characterize the U-services into our research model, we newly introduced 'context based personalization' factor. Since the respondents could not directly experience the U-services yet, we adopted scenario-based questionnaire. For this, we deliberately developed U-service scenario. And then this U-service scenario is verified using capability-based assessment method. Using data collected from 251 respondents, this study found that 'context based personalization' factor was positively and significantly related to the acceptance of U-service as well as UTAUT model's 4 factors such as performance expectancy, effort expectancy, social influence and facilitating conditions.

• Spatial Information Research
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• v.16 no.1
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• pp.79-99
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• 2008

Enterprises as well as central and local governments have tried to apply ubiquitous technology to the actual life on the various types of business and projects. In this paper we develop strategic plan to provide public service on public areas based on needs analysis of public services as well as trend analysis of ubiquitous and web technology. Ubiquitous service model should be based on geospatial web which can incorporate participation and collaboration concepts, as the wire/wireless network system develop rapidly. To achieve this purpose, we suggest the following projects; 1), construction of internet map based on geospatial web technology, 2), development of web contents based on geospatial web, 3), installing ubiquitous equipment, and 4), upgrade Seoul Metropolitan Government's homepage and internet system which can incorporate web 2.0 concepts. Ubiquitous service model should be based on not only development of ubiquitous technology but also needs of consumer such as citizen, enterprises, and public sectors which have an interest in that place. Geospatial web will be the core of development of ubiquitous service models.

• Journal of Intelligence and Information Systems
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• v.14 no.3
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• pp.109-131
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• 2008

Ubiquitous Smart Space(USS) like u-City has been expected to create a high added value. However, developing USS has a high risk because it should use future technologies and development methodologies that have been never tried in the past. Hence, it has to be considered thoroughly in the very first stage of development. Moreover, USS usually uses several ubiquitous computing technologies combinationally because of the nature of USS. Despite of this, existing technology selection methodologies or technology evaluation methodologies only focus on a single technology. This leads us to develop a methodology of optimal technology combination for developing a specific USS. The purpose of this paper is to propose the methodology and to apply it to develop a real USS. We use portfolio theory and constraint satisfaction problem to determine an optimal technology combination. We also apply our methodology to the national ubiquitous computing project which carries out at present to validate it.

• 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.

• Information Systems Review
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• v.8 no.1
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• pp.81-99
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• 2006

Recently, the area of ubiquitous has gained a great attention both in academics and in business organizations as we are entering an ubiquitous society where people can interact at "anytime" and "anywhere". To preoccupy the leading status for the next generation of IT technology, many countries such as Korea, Japan, and US are concerned the ubiquitous. In this tendency, companies want to identify what factors make people use ubiquitous in order to develop the effective ubiquitous service and to supply the higher quality service. However, prior researches on ubiquitous are focused on technical area such as higher data delivery, efficient compression of images, so they do not have given companies beneficial materials for making fascinating ubiquitous services. To offer the service materials for development, from the viewpoint of the customer, important factors to use ubiquitous services are investigated in this study. Moreover, the study was progressed up to the new area of investigation how much these factors influenced ubiquitous service actual usage. To achieve these goals, Ubiquitous service adopting reflected in ubiquitous service characteristics was suggested in this study. The results of this study are as follows. First, contextual offer, ubiquity, invisibility are positively related to perceived value. Second, perceived value is positively related to usage intention but perceived risk is negatively related to usage intention. Third, usage intention is positively related to usage frequency. Based on these results, managerial implications for ubiquitous service vitalization are discussed. Lastly, the limitation of this research and further research issues are suggested.

• Electronics and Telecommunications Trends
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• v.20 no.1 s.91
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• pp.147-156
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• 2005

이동 환경에서 뿐만 아니라 향후 단말 중심의 개인화 서비스가 제공되는 유비쿼터스 환경에서는 다양한 단말 및 센서들이 존재할 것이고 이들은 네트워크 상에서 서로 상대의 위치를 인식하여 특정 장치가 가진 기능이나 서비스를 획득하기 위하여 상호 통신하거나 새로이 추가되는 장치를 자동으로 구성할 수있어야 한다. 이와 같이, 위치 기반 서비스 및 peer-to-peer 컴퓨팅을 지원하기 위해 ‘서비스 발견’은 모바일 컴퓨팅을 위한 미들웨어로서의 역할을 수행하게 될 것이다. 본 논문에서는 JINI, UPnP, Salutation, SLP2, Bluetooth SDP 등의 기술에서 제공되는 서비스 발견 프로토콜(메커니즘)을 살펴보고 이들의 특성을 비교하고자 한다.