• Journal of the Korean Data and Information Science Society
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• 제18권3호
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• pp.757-766
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• 2007

Location services are used in mobile ad hoc and hybrid networks to locate either the geographic position of a given node in the network or a data item. One of the main usages of position location services is presented in location based routing algorithms. In particular, geographic routing protocols can route messages more efficiently to their destinations based on the destination node's geographic position, which is provided by a location service. In this paper, we propose an adaptive location service on the basis of fuzzy logic called FHLS (Fuzzy Hierarchical Location Service) for mobile ad hoc networks. The adaptive location update scheme using the fuzzy logic on the basis of the mobility and the call preference of mobile nodes is used by the FHLS. The performance of the FHLS is to be evaluated by a simulation, and compared with that of existing HLS scheme.

• 한국경영정보학회:학술대회논문집
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• 한국경영정보학회 2007년도 International Conference
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• pp.931-936
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• 2007

To understand the relationship between factors influencing customers' intention to switch from current banking services to mobile banking service. We first investigates immediate influence of customers' satisfaction with existing banking service and attractiveness of mobile banking as an alternative service. We further examines the moderating effect of alternative service attractiveness that influences the relationship between existing service satisfaction and switching intention to mobile banking service.

• 품질경영학회지
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• 제41권3호
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• pp.381-394
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• 2013

Purpose: Nowadays, Mobile Cloud Storage services are used widely. For sustainable use of this service, we need to determine what factors affect satisfaction. Therefore, the purpose of this study is to identify the factors that influence satisfaction. Methods: To analyze factors that influence satisfaction, this study sets the factors into three dimensions such as service quality, perceived risk, and individual characteristics and analyze the causal relationship between influence factors and satisfaction through Structural Equation Model. Results: The results of this study are as follows; among service quality, user interface and reliability influenced satisfaction, but adaptability did not have any influence. Perceived risk of illegal access had a negative influence on satisfaction, while perceived risk of privacy leakage did not have significant influence on satisfaction in perceived risk. At last, self-efficacy had a significant influence on satisfaction. Conclusion: We identified the influence factors that influence satisfaction. Our findings will be necessary for Mobile Cloud Storage service providers to strengthen their service.

• 한국융합학회논문지
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• 제8권9호
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• pp.231-236
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• 2017

이 연구는 모바일 라이브 스트리밍 서비스의 불법 유해방송 근절을 목적으로 모바일 라이브 스트리밍 서비스의 특성과 불법 유해정보의 특성을 분석하고 모바일 라이브 스트리밍 서비스상의 불법 유해방송 실태를 고려한 근절 방안을 제시하고자 하였다. 1차로 문헌 연구를 통하여 모바일 라이브 스트리밍 서비스와 불법 유해방송에 대해 고찰하고 2차로 모바일 라이브 스트리밍 서비스의 불법 유해방송 실태와 인식 및 대응방안에 대해 설문조사를 진행하였다. 그 결과 모바일 라이브 스트리밍 서비스의 불법 유해방송 노출 빈도가 높으며 불법 유해방송 노출이 사용자의 자의보다 실시간 방송이라는 특성에서 비롯한 원인이 큰 것임을 확인했다. 모바일 라이브 스트리밍 서비스의 불법 유해 정보를 근절하기 위해서는 서비스의 불법 유해방송 자체의 신고체계 정비도 필요하지만 정부의 규제 방안 마련에 대한 요구사항을 확인했다. 향후 미시적인 관점에서 모바일 라이브 스트리밍 서비스의 불법 유해정보 근절에 관해 연구가 필요할 것이다.

• Journal of Korea Trade
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• 제23권4호
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• pp.58-79
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• 2019

Purpose - This study focused on the effect of mobile app information system quality on re-use intention in the medical service trade, and examined how the Chinese, currently the main consumer of Korea's medical service trade, obtained information through mobile apps, and the status of satisfaction felt by experiencing medical services. Design/methodology - The survey period was from November 2018 to January 2019, and was conducted on Chinese who voluntarily experienced medical services. The collected data verified causality of the study model through the statistical program, SPSS.24. The results showed that the most popular medical institution through the medical service mobile app is dermatology, and the quality of the app's information system plays a mediating role in influencing re-use intention. Findings - Overall, the current trade in medical services is first accessed and acquired through mobile apps, and as a result, consumers revisit medical institutions according to the reliability of information. Comments and likes, another new form of the word of mouth that has greatly influenced revisiting in the past, are seen to be spreading through the app's medical information. Originality/value - The previous market for the medical services trade was formed by very conservative word of mouth, but now we believe that the app's information system actively influences the revisit effect. This means that apps can be used in diverse areas in the medical service trade market. In addition, the medical service market needs to further develop a mobile app environment that can reflect consumers' diverse needs, behaviors, and culture from time to time in order to revitalize the service trade. Such an app environment development will have tremendous promotional effects on the trade market and provide directions for expanding trade in medical services.

• 한국정보시스템학회지:정보시스템연구
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• 제15권4호
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• pp.99-124
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• 2006

The development of IT has made it possible to use various terminal systems for financial transaction and demands for financial survices are getting more and more diversified at the same time. Among others, mobile banking service market based on IC chips has been expanded its service areas and the number of mobile banking users has been increased. The study analyzes and tests the dynamic effects of the inflow of potential customers on mobile banking market condition by using system dynamics methodology to identify the dynamic structure of mobile banking market. The simulation model is designed to track the variation in the number of subscribers of mobile banking servides according to two scenarios, and the results are as follows; First the effect of word of mouth by customers who have used the service already is significant. The satisfactory level of early adopters is reflected in WOM, and as a test result shows, increase in word-of-mouth causes the growth of potential customers' demands for mobile banking service. Second, perceived attractiveness of mobile banking service market is another important construct. Factors such as convenience, mobility, time saving, security, and various services explain the construct perceived attractiveness of the service, and it makes the potential customers adopt the service, causing the increase of demands.

• 한국비블리아학회지
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• 제15권2호
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• pp.219-240
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• 2004

본 연구는 유비쿼터스 도서관의 실체를 파악하기 위한 연구이다. 이를 위해서 유비쿼터스 컴퓨팅과 유비쿼터스 도서관에 대한 개념적 정의와 함께 그 실태를 파악하기 위하여 유비쿼터스 컴퓨팅에 기반한 유비쿼터스 도서관의 서비스 실태와 과제, 발전 전망 등에 대하여 논의하였다. 문헌연구와 주요 도서관의 홈페이지 내용 분석, 전문사서와의 인터뷰를 통해서 얻어진 결과는 다음과 같다. 첫째, 유비쿼터스 도서관은 무선통신을 이용하여 소장 자료의 검색, 대출 및 반납, 참고질의, 공지사항 등의 서비스를 제공한다. 둘째, 모바일 도서관은 구현 기술의 표준화, 서비스의 단순성, 컨텐츠와 인터페이스의 문제가 제기된다. 셋째, RFID 도서관은 도서관리 프로그램과의 연계성, 시스템의 호환성 및 표준화, 시스템 도입에 따른 도서관 서비스 방식의 변화, 정보 보안과 개인 프라이버시, 시스템 장비의 가격 등이 문제가 된다. 넷째, 유비쿼터스 도서관이 발전하기 위해서는 기술의 통합 및 표준화와 함께 정보기술 인프라와 프로세스의 발전이 이루어져야 한다. 다섯째, 유비쿼터스 도서관의 정보서비스가 성공하기 위해서는 모바일 환경과 특성에 맞는 다양한 형태의 서비스 개발과 함께 개인별 맞춤 서비스가 제공되어야 한다.

• 한국IT서비스학회지
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• 제18권1호
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• pp.201-217
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• 2019

Cars have become a necessity in modern life. It is widely used to transport people or products to a destination conveniently. However, the addition of a navigation service that provides route information and more makes driving more convenient and safer. Recent developments in the mobile app ecosystem encourages people to adopt not only an installation-type car navigation, but also a mobile app navigation, supporting connected car concepts. It should be noted that mobile apps with mobile Internet can be a significant linkage between information acquired online and offline business. This study demonstrates the impact of the app use experience for a driver in the context of applying artificial intelligence service. As a result, the introduction of artificial intelligence services has a statistically significant moderating effect on the use of mobile navigation apps. This seminal research is valuable as it evaluates the role of artificial intelligence applied to mobile navigation apps.

• 한국통신학회논문지
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• 제31권10A호
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• pp.960-967
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• 2006

이동통신은 시간과 장소의 제약없이 유비쿼터스하게 인간 중심의 서비스를 제공할 수 있는, 차세대 시스템을 향하여 진화하고 있다. 특히, 사용자의 요구와 사용자 주변 상황들이 동적으로 변화하고 있는 차세대 이동통신 환경에서 다양한 센서 및 장치 그리고 관련 기술들에 의해 상황 인식(Context Awareness)이 실현될 것이다. 이러한 상황 인식을 바탕으로 차세대 이동통신 환경에서는 사용자의 요구와 사용자 주변 상황에 가장 적절한 서비스가 제공되는 상황 인식 서비스가 핵심 서비스로 부상될 것이다. 본 논문에서는 서비스 사용자와 서비스 제공자들을 연결시켜 주는 차세대 이동통신 서비스 플랫폼을 기반으로 제공되는 차세대 이동통신 서비스 환경을 기술한다. 그리고, 이러한 서비스 환경에서 차세대 통합망, 센서 및 센서 네트워킹 기술, 단거리 통신 기술의 발전에 따른 상황 정보수집 범위의 확대, 서비스 이용 범위의 다양성 등에 따라 분류된 상황 인식 서비스의 진화 단계를 제시한다.

• Journal of Information Technology Applications and Management
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• 제26권3호
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• pp.99-120
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• 2019

The purpose of this study is to provide information necessary for establishing a new strategy for customer service improvement by deriving factors affecting user satisfaction and continuous use intention of mobile app service user characteristics, system characteristics, and social characteristics. The results of this study are summarized as follows. First, reliability, innovation, familiarity, convenience, and self-efficacy among the characteristics of mobile app are analyzed as factors that have the greatest influence on user's perceived usefulness. Second, convenience, mobility, and visibility are some of the characteristics of mobile app service. Third, identity, security, and expectation agreement among mobile app service characteristics are analyzed as negative factors that do not affect users' perceived usefulness. Fourth, interactivity, familiarity, and self-efficacy among the characteristics of mobile app service were analyzed as positive factors that have the greatest effect on user's perceived ease of use. Fifth, reliability, mobility, visibility, and convenience among mobile app service characteristics are analyzed as factors that have some positive effects on perceived ease of use of app users. Sixth, identity, innovation, and security among the characteristics of mobile app service are negatively influenced by mobile app users' perceived ease of use. Seventh, the perceived usefulness of mobile app users is analyzed as a factor that has a very positive effect on user satisfaction. Eighth, the perceived ease of use of mobile app users is analyzed as a factor affecting perceived usefulness positively. Ninth, the perceived ease and expectation of mobile app users are positively influenced on user satisfaction. The tenth, the perceived usefulness of the mobile app users was analyzed as a factor having a very positive influence on the persistent intention to use. For the eleventh, the perceived ease of use of mobile app users was analyzed as a factor having a positive effect on the persistent intention to use. The twelfth, mobile app user satisfaction was analyzed as a factor having a very positive effect on the persistent intention to use.