• Survey Research
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• v.7 no.1
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• pp.1-28
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• 2006

The aim of this study is to develop a scale measuring satisfaction to ubiquitous services. Since the ubiquitous service is not vet implemented but under development, conventional scale construction methods are not directly applicable. In this study, the characteristics of items are studied by observing individual's responses after presenting a video clip describing virtual services. The constructs of ubiquitous service are defined based on those of information system and previous studies of ubiquitous services. Items were generated to reflect the constructs. In the first study, we found six factors (me-centeredness, attractiveness, usability, trust, accessibility, ownership) in the ubiquitous service scale by using exploratory and confirmatory factor analysis. Some items were dropped out that did not show good psychometric properties. In the second study, relationships among the constructs and satisfaction of the service was investigated by using structural equation models. An SEM analysis showed that these six constructs can predict the satisfaction about ubiquitous system, Practical implications and utility of this scale are discussed.

• The Journal of the Korea institute of electronic communication sciences
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• v.2 no.1
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• pp.52-61
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• 2007

The u-City is next generation IT-City which is to enhance the quality of life and convenience of life base on merger up-to-date communication infrastructure with u-IT services. To realize u-City, intelligent building is built for citizens to make a space of comfortable life. The intelligent building is possible to be constructed by communication infrastructure for various U-services. This paper mentions the ranges of communication infrastructure and shows how to construct it each range through regulation, law and technical. Lastly, the topics are suggested to build successfully u-City constructions in Korea.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.26 no.6
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• pp.571-581
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• 2008

With the advent of u-City(ubiquitous city) concept, the importance of urban management has been increased. GIS is a foundation for the efficient urban management and an essential technology for the development of u-City. u-City, which aims for convenient, safe, healthy, and comfortable life, provides diverse services based on advanced information technologies, and it will offer more services in the future. u-City integrated management platform enables the ease of service development, guarantees the quality of services for the resident, and provides organic information sharing. Moreover, the platform by integrating GIS and other common management functions, makes possible efficient urban management. In this paper, required functions of u-City integrated management platform for u-City service were analyzed. As a result, GIS module for management of street lights and supervision of fire was developed and the application usability of u-City integrated management platform was verified by service simulation.

• The Journal of Information Systems
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• v.16 no.4
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• pp.51-73
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• 2007

Ubiquitous computing is enhancing computer use by making many computers available throughout the physical environment, but making them effectively invisible to the user. To facilitate the successful adoption and diffusion of ubiquitous computing, it is necessary to figure out the factors affecting the use of U-service. Though the research related to ubiquitous computing has been vigorously conducted from the aspect of system and service provider, there have been very few studies that focus on the user's perspective. Therefore, this study attempts to figure out major factors which are dedicated to the development of ubiquitous computing and u-service, and that ultimately influence the u-business outcome. This study derived the factors that characterize u-service, such as ubiquity, contextual offer, reliability, invisibility, and confidentiality, which are then combined in the TAM model and carry out the path analysis. The research findings indicate that ubiquity affects both the perceived usefulness and perceived ease of use. The reliability and confidentiality were found to affect the perceived usefulness, whereas the contextual offer and invisibility turned out to influence the perceived ease of use. Finally, the relationship among the perceived usefulness, perceived ease of use, and the attitude toward using are identical with the previous research findings related to the technology acceptance model(TAM).

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.11
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• pp.4869-4874
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• 2011

In this paper, we defined constructivism and ontology theory and associate it in Location Based Service ubiquitous learning. And this paper aims to provide a clear vision about location based service (LBS) ubiquitous learning. The typical ubiquitous learning involving the Context Aware Intelligent system was presented. Also the Architecture for learning environment including the key idea and technical concept is being presented in this paper. Guided with these principles and with the advancement of information and communication technology the context-awareness based on Artificial intelligence for Location based Service for ubiquitous Learning was conceptualized. U-learning for Location Based Service is presented here and the concept behind this new learning paradigm. The learning environment architecture which comprises the entire component is illustrated here.

• The Journal of the Korea Contents Association
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• v.9 no.11
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• pp.335-347
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• 2009

This research analyzes the use intention of the ubiquitous service based on the technology acceptance model (TAM). This study investigates the characteristics of the ubiquitous service like the ubiquity, personality, connectivity, and location. The major results of this study are as follows. The ubiquity, connectivity, and location had positive influences on the perceived usefulness and perceived ease of use. And, the personality had the positive influence of the perceived ease of use. The perceived usefulness and perceived ease of use had the positive effect to an attitude, and the attitude had the positive effect to an use intention. When it consider the market share or the growth potential of the wireless internet service industry, this research results will be able to tilize as the basic information of an industry.

• Korean System Dynamics Review
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• v.10 no.2
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• pp.5-27
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• 2009

Multiplex is a representative culture facility of citizens. Therefore, a lot of researches and investment on multiplex are carried out to improve benefits of service suppliers and users. Especially, focused on main services of a theatre such as ticket booking and issuing within multiplex, examination of tickets, admission information of movie screens and screening information inquiry, improvement activities are carried out. However, it is not enough to evaluate on what efficiency the above efforts have in the viewpoint of customer benefits and business. Therefore, this study analyzed value and limit of the newest service of multiplex applying the existing ubiquitous concept(u-multiplex service), and proposed a model and a plan for improving the existing services. The study interviewed with specialists in the related field and applied workshop-shape group interview to 110 university students and simulated service models. The contribution of the study is to analyze the value and limit of the existing multiplex service objectively, and to propose a new service model and plan to improve its limitation. In the future, the study plans to research on service models by extending space and functional roles of multiplex to the whole subsidiary facilities including movie screens.

• Proceedings of the Korea Contents Association Conference
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• 2005.11a
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• pp.88-93
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• 2005

Recently many researchers are keen interested in the concept of ubiquitous using mobile internet and RFID. Busan also plans to build a first U-city in the areas of port logistics, traffic, tourism convention, medical service. It is important to be accepted by consumers for U-tourism convention service adoption to determine the future growth potential. The purpose of this paper thus examines the effect of tourism contents on U-tourism convention service adoption using technology acceptance model.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2014.10a
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• pp.115-117
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• 2014

Recently, interesting of U-city with ubiquitous computing technologies has increased and u-city services can improve people's quality of life. Among the u-city services, traffice service is actively developed in our lives. In this paper, we propose the business model and business model process in u-car tracking service. To propose the research purpose, we examined the prior business model and investigated u-car tracking information. And also, we draw scenario and used it to identify business model. To efficiently understand proposed business model, we built business model process of u-car tracking service. The results of study, we proposed business model and business model process with stakeholder, benefiter and value model. This study concludes with implications of the study results as well as limitations and future research directions.

• Spatial Information Research
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• v.15 no.1
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• pp.1-14
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• 2007

u-City is a new concept and phenomena of applying Information & Communications Technology(ICT) into real cities in Korea. In order to effectively integrate a city with high-tech ICT infrastructure, cutting-edge ICT is being integrated into physical urban environments from the planning and construction stage of a city. There are positive expectations regarding its effect on urban planning and citizens' lives. However, construction of u-city has technical limitations as well as institutional obstacles. This paper aims at identifying problems of current u-city practices and suggesting appropriate solutions for those problems. To do so, it first collects opinions from diverse experts. Then, it draws problems and suggests solutions in terms of u-infrastructure, u-service, policy and implementation process.