• 한국IT서비스학회:학술대회논문집
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• 2010.05a
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• pp.171-176
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• 2010

현재 우리는 Ubiquitous IT기술을 활용한 편의시설이 곳곳에 적용되어 가고 있는 도시에 서 살아가고 있으며, 이러한 Ubiquitous IT기술은 발전에 발전을 거듭하여 우리가 느끼지 못하는 곳까지 확대되어 가고 있다. IT산업과 도시산업의 융·복합화을 통해 형성되는 새로운 도시의 개념인 u-City는 다양한 u-Service의 제공을 통해 국민의 삶을 향상시키는데 의의가 있다. 정부에서도 Ubiquitous 활성화 정책과 u-City 관련 산업 육성을 위해 노력하고 있으며, 이에 Ubiquitous 환경 및 정보인프라 구축등 기술적 구현은 빠르게 발전되고 있다. 그러나 u-Service의 효과를 체험하고 보다나은 서비스가 제공될 수 있도록 정보를 제공해 주어야 하는 소비자(국민)들은 계층별 정보격차로 인해 체감할 수 있는 u-Service가 미흡한 것으로 파악된다. 따라서 본 논문에서는 정보격차 분석을 통해 계층별 소비자 맞춤형 u-Service 적용방안을 제시하고자 한다. 이에 본 논문은 u-Service의 기본단위인 도시에서 생겨나는 정보격차 속성을 이해하고, 정보격차의 주체별 분석을 통하여 올바른 u-Service를 적용할 수 있는 효율적인 방안을 제시하고자 한다.

• Spatial Information Research
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• v.23 no.2
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• pp.83-93
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• 2015

U-Services, which are offered from local governments based on their Ubiquitous City Plans, are only focused on facility and urban management services. Also Citizen oriented U-service is only planned. This study's purpose is to propose the implication for provide of the Citizen oriented U-service comparing with U-Service plan of 'Ubiquitous City Comprehensive Plan' and 'Ubiquitous City Plan' through a network text analysis and word frequency analysis. It was calculated a important keyword that was extracted the service plan contents of the 'Ubiquitous City Comprehensive Plan' and 'Ubiquitous City Plan' of the four local governments. The network text analysis and keyword frequency analysis was performed through derived keyword. Based on the analysis results, awareness of the citizens can be expected to increase about U-City by activating a excavation of Citizen oriented U-service in a variety of sector through additional services and policy of financial support in the next Ubiquitous City Comprehensive Plan.

• International Journal of Contents
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• v.5 no.4
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• pp.62-68
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• 2009

This paper presents a novel method to design and implement mobile u-health system by defining the essential elements of mobile healthcare services. We choose common service elements for the proposed u-healthcare scheme and design the service platform. Especially we focus on automatic feces or urine sensing u-care scheme to prove the effectiveness of our platform. We construct the system with sensing part with a manikin and a diaper wireless communication part with feces or urine sensing data, and coordinator system based on the u-health platform defined in this paper. Experimental results show that our scheme is useful in the area of u-care service for the handicapped, the elderly, and patients who can hardly move by themselves. In addition the designed scheme offers a realized u-care scheme with the purpose of advanced developing tools for application or service developers.

• Convergence Security Journal
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• v.11 no.6
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• pp.67-72
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• 2011

A system that provides a ubiquitous service is a networked system that has to overcome their circumstances that the service survivability is weak. the survivability of a networked system is defined as an ability of the system that can offer their services without interruption, regardless of whether components comprising the system are under failures, crashes, or physical attacks. This paper presents an approach that end users can obtain a quantitative evaluation of U-service survivability to reflect intended cyber attacks causing the networked system to fall into byzantine failures in addition to the definition of the survivability. In this paper, a Jini system based on wireless local area networks is used as an example for quantitative evaluation of U-service survivability. This paper also presents an continuous time markov chain (CTMC) Model for evaluation of survivability of U-service that a Jini system provides, and an approach to evaluate the survivability of the U-service as a blocking probability that end users can not access U-services.

• 한국정보통신설비학회:학술대회논문집
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• 2009.08a
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• pp.170-173
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• 2009

유비쿼터스도시(U-City)는 도시민의 삶의 질과 도시의 경쟁력을 높이는 것을 목적으로 하고 있다. U-City에서 제공하는 도시서비스는 기존의 도시서비스와는 다르게 도시민의 만족도가 도시서비스를 제공하는데 가장 중요한 고려사항이 되고 있다. U-City 서비스에 대한 도시민의 만족도를 측정하고 이를 기반으로 U-City 서비스를 설계하기 위해서는 기존의 도시서비스 및 통신서비스에 관한 만족도의 측정에 대한 연구에 대한 선행조사와 측정된 도시민의 만족도를 기반으로 U-City서비스를 설계하는 것이 필요하다. 본 논문에서는 도시서비스에 대한 사용자의 만족도를 측정하는 방법과 이를 기반으로 U-City 서비스를 설계하는 방법에 관하여 제안하고자 한다.

• Journal of Information Technology Services
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• v.11 no.1
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• pp.141-153
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• 2012

USM(Unit Service Management System) is the development tool and methodology to handling the event process in a U-City integrated platform by using the minimum unit services. USM can be one of the SOA development methodology. Minimum unit service has a minimum business logic that can be executed with input and output parameters. Minimum unit service consists of three parts : service profile, service input and output parameters and service execution information. USM provides two types of the execution method. One is module execution and the other is web service execution. The development of the event sinario by the USM development methodology can reduce the cost and duration of the u-service development by raising the rate of reusing minimum unit service.

• Proceedings of the Safety Management and Science Conference
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• 2010.04a
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• pp.127-135
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• 2010

In this paper, the u-Service system that is based on location-aware technology is designed for a silver town. It provides services such as emergency call, intelligent elevator operation, and hands-free door access based on the location of the residents with personal device as called smart tag. It can also be applied to other service areas such as the location-aware u-Service for Hospital, high-rising complex building, APT, etc.

• The Journal of the Korea institute of electronic communication sciences
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• v.10 no.9
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• pp.1049-1058
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• 2015

This paper aims to study the relationship of U-Traffic Service Quality and User Satisfaction. Independence variables is u-traffic service quality, and mediation parameters are publicity, usefulness and economic. Dependent variable is user satisfaction. Using SPSS 18.0, a series of factor analysis, reliability analysis, multiple regression analysis and path analysis have been performed. The conclusion is as follows. First, U-traffic service quality have a positive effect on user satisfaction directly. Second, U-traffic service quality have a positive effect on user satisfaction through mediation parameters of publicity, usefulness and economic. Third, service quality factor of the U-traffic service quality have more effect on user satisfaction than system quality factor. Last, usefulness among mediation parameters have the most positive effect on user satisfaction.

• Journal of the Korea Society of Computer and Information
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• v.12 no.4
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• pp.103-110
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• 2007

Ubiquitous computing is a vogue word, and its service is very popular in Korea. However, present ubiquitous service(u-Service) is thought to be more oriented to the provider's point of view, not the consumer's. To complement this problem, an online survey was performed for internet users, which consists of 24 single choice questions on six fields such as transportation, healthcare, environment/city-management, culture/education, administration, and industry. 2463 people joined the survey, who were grouped according to their age, resident region, level of education, and sex. Each group's demand for specific field of u-Service was examined. General level of demand was higher in case of the elderly and male than the younger and female for overall u-Service.

• Journal of the Korea Safety Management & Science
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• v.12 no.2
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• pp.99-105
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• 2010

In this paper, the uAPSS(u-APartment Service System) that is based on location-aware technology is designed and implemented for a luxury apartment. On the real luxury apartment the developed system has been employed and tested to provide convenient and secure living for residents. It provides services such as emergency call, intelligent elevator operation, and hands-free door access based on the location of the residents with personal device as called smart tag. It can also be applied to other service areas such as the location-aware u-Service for hospitals, high-rising complex buildings, silver towns, etc.