• 한국공간정보시스템학회:학술대회논문집
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• 2007.06a
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• pp.37-42
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• 2007

이 연구는 u-City의 성공적 조성을 위해 u-서비스 공급자 측면과 수요자 측면의 요구를 충족할 수 있는 u-서비스 우선순위 선정에 관한 체계적 연구의 필요성에서 시작되었다. u-서비스 우선순위 모형개발을 위해 선행 연구를 토대로 수요자와 공급자의 서비스 결정 요인을 탐색적으로 도출하고, 전문가와의 브레인스토밍을 통해 u-서비스 결정의 확정적 요인을 도출하였다. 도출된 요인들을 계층분석(AHP)모형으로 설정하고, 1차 전문가 설문조사를 통해 요인별 가중치와 우선순위를 도출함으로써 공급자와 수요자를 고려한 u-서비스 우선순위 선정 모형을 제시하였다. 개발된 모형을 바탕으로 2차 전문가 설문조사를 통해 u-지역정보화에서 제시한 대구지역의 특화서비스를 평가하였다. 평가 결과 대구지역은 지역물류 지원서비스, 시각장애인 길안내 서비스, u-텔레매틱스 서비스가 상위권을 차지한 반면, u-지역정보화에서 제시한 안전방재지원서비스와 산업특화거리 등의 서비스는 중위권을 차지하고 있어 공급자 위주의 u-서비스 선정과는 차별성을 보였다. 개발된 u-서비스 우선순위선정 모형은 u-서비스 제공 및 사용의도에 기반한 모형으로 u-서비스 우선순위 선정을 체계적으로 지원할 수 있어 향후 성공적 u-City 조성에 기여할 수 있을 것이다.

• 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.

• 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.

• Journal of Korea Society of Industrial Information Systems
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• v.11 no.5
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• pp.207-215
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• 2006

In this paper, we attempt to investigate the factors influencing usage and acceptance of ubiquitous services in campus, based on the Technology Acceptance Model(TAM). This study conceptualizes and develops three dimensions of u-Services, such as real time service, information security, customization service, and tests the relationship among u-Services, perceived usefulness and perceived ease of use, and intention to use. Data were collected from 162 respondents in K-University and research model was tested using multiple regression analysis. As a consequence, this study found that customization service is an important factor which is influenced to perceived usefulness and perceived ease of use.

• The Journal of the Korea institute of electronic communication sciences
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• v.8 no.9
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• pp.1351-1358
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• 2013

This paper aims to study the effects of quality of u-City public service on customer satisfaction in the Korea and is summarized as follows. First, we propose a model for assessing customer's satisfaction on u-City public services. The model comprises of information system (IS) quality, information quality, service quality and publicity. For verifying a model, a statistical study by SPSS 12.0 and AMOS 16.0 has been performed. Second, it is shown from the analysis that information system (IS) quality, information quality and publicity have a positive effect on customer satisfaction. while service quality does not. Last, the study shows that u-City public service enables any citizen to connect to necessary service in anytime and anywhere.

• The Journal of the Korea institute of electronic communication sciences
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• v.9 no.8
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• pp.875-882
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• 2014

This paper aims to study on the relationship of u-Security service, usefulness and citizen satisfaction. Independence variable is u-Security service, a mediation parameter is usefulness, and dependent variable is citizen 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 following. First, u-Security service affects usefulness. That is, as publicity safety, system quality, service quality increase, usefulness increases. Second, u-Security service affects citizen satisfaction. That is, as publicity safety, system quality, service quality increase, citizen satisfaction increases. Third, usefulness affects citizen satisfaction. That is, as economic usefulness and security usefulness increase, citizen satisfaction increases. Last, u-Security service has direct and indirect effect in usefulness and citizen satisfaction. That is, usefulness is an important variable that mediates u-Security service and citizen satisfaction.

• Journal of Digital Convergence
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• v.10 no.6
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• pp.93-98
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• 2012

This study was to analyze the influences of various factors on the u-health service. Data was surveyed from experienced of u-Health service sectors. We measured legal support, IT-infra, user education, the user education, and the u-Health solution, are the critical success factors for the u-Health service. Also we evaluated u-Health services by survey data from the users. We did also the research to evaluate the validity and reliability of these factors. After that the Analytical Hierarchy Process (AHP) was applied to measure the weights among these factors. Factor analysis resulted in 6 major factors (Eigenvalue > 1.0). The AHP analysis showed the list of Critical Success Factors weighted by its significance priorities. The results of this paper could be the valuable references for the policy making process of the u-Health system in Korea.

• 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.

• Information Systems Review
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• v.10 no.2
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• pp.97-121
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• 2008

There are relatively inactive discussions about applying ubiquitous technology (uT) to traditional marketplace. If u-Market which affords to promote customer shopping convenience and on/offline shopping experience is implemented, then traffic of visiting customers as well as the revenue of the market will increase. Ultimately, it will lead to revitalizing traditional market. For this purpose, we developed a realistic u-Market service scenario with restricted uT considering spatial limitation and poor infrastructure of the physical marketplace. Based on u-Market service scenario, we have empirically investigated the determinants of u-Market service acceptance of the actual customers of traditional marketplace. We hope the results of this study will help in improvement of u-Market system development and service feasibility.

• Journal of the Korean Association of Geographic Information Studies
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• v.11 no.2
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• pp.132-147
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• 2008

So far ubiquitous service (u-service) priority has seldom been empirically examined based on the customer's view. It is usual to prioritize the relative importance of u-service variables by the supplier's intuition and a few specialist's experienced knowledge. Such approaches have the disadvantage that they provide only limited empirical information on the field practices in relation to u-service since customer demand of u-service is poorly defined despite abundant interest in this problem. Therefore, the aim of this research was to develop u-service priority model in the context of multi-criteria framework integrating customer and supplier's view, using high technology acceptance theory as major controlling factors. An important question was how to measure or represent criteria that is important to u-service and should be included in a priority model. The selection criteria for the model variables were derived from high technology acceptance theory and AHP approach through the analysis of frequency count, elimination of overlapping factors and brainstorming with specialists. Daegu showed top-rankings in transportation-aid service, guidance service for the eyesight disabled and u-telematics service. In contrast, disaster prevention service and industrial specialized town service ranked highly in the typical supplier's approach were not a dominant determining factor in the u-service priority. The model identified the fact that typical high priority service in terms of supplier's view did not necessarily accompany the important predictor for the u-service priority.