• 디지털산업정보학회논문지
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• 제11권3호
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• pp.201-218
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• 2015

The purpose of this study is to verify a causal relationship between social tv services and intended acceptance of social tv service through the SERVQUAL five dimensions which mean generally assessment of superior user. Also I am going to analyze that how factors of intended acceptance of social tv service effect on intended acceptance through perceived usefulness and perceived ease of use based on Technology Acceptance Model which provides theoretical basis for behavior response of information technology. This study is significant that social tv combine the five dimensions of service quality that mean assessment of overall excellent or superior user and Technology Acceptance Model that provides theoretical basis for describing an behavior response of information technology.

• Journal of Information Technology Applications and Management
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• 제23권2호
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• pp.153-176
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• 2016

This study investigated factors affecting the use intention of podcast service users based on the unified theory of acceptance and use of technology (UTAUT). Performance expectancy, effort expectancy, social influence, facilitating condition, hedonic motivation, innovativeness, and media credibility were used as independent variables in the model. The survey data from the users of the podcast portal 'podbbang' were analyzed with Smart PLS 2.0 to test the structural equation model. The results revealed that the podcast service user's effort expectancy, facilitating condition, hedonic motivation, and media credibility have a significant influence on use intention. However, the relationship between the podcast service user's performance expectancy, social influence, innovativeness, and use intention were not identified as significant.

• 정보관리학회지
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• 제34권4호
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• pp.273-292
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• 2017

이 논문은 서비스 품질 관점에서 도서관 모바일 서비스를 위한 평가 모형을 개발하는 것을 목적으로 한다. 이를 위해 본 연구에서는 기존에 연구된 도서관의 서비스 품질 평가 모형과 모바일 서비스 평가 연구에 대한 문헌 분석을 실시하였으며, 이를 토대로 도서관 모바일 서비스 품질 평가에 필요한 4개 품질 차원, 10개 품질 요인, 39개 품질 측정 항목으로 구성된 평가 모형을 개발하였다. 그리고 개발된 모형의 타당성을 검증하기 위해 델파이 기법을 적용하였으며, 최종적으로 4개 품질 차원, 9개 품질 요인, 37개 품질 측정 항목으로 구성된 모형을 도출하였다. 이 연구에서 제안하고 있는 평가 모형은 도서관의 모바일 서비스 품질 진단 도구로 사용될 수 있으며, 또한 도서관 모바일 서비스의 개선을 위한 가이드라인으로도 활용될 수 있다.

• Journal of Information Processing Systems
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• 제13권4호
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• pp.951-969
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• 2017

In this paper, we newly propose a traffic information service model that collects traffic information sensed by an individual vehicle in real time by using a smart device, and which enables drivers to share traffic information on all roads in real time using an application installed on a smart device. In particular, when the driver requests traffic information for a specific area, the proposed driver-personalized service model provides him/her with traffic information on the driving directions in advance by predicting the driving directions of the vehicle based on the learning of the driving records of each driver. To do this, we propose a traffic information management model to process and manage in real time a large amount of online-generated traffic information and traffic information requests generated by each vehicle. We also propose a road node-based indexing technique to efficiently store and manage location-based traffic information provided by each vehicle. Finally, we propose a driving learning and prediction model based on the hidden Markov model to predict the driving directions of each driver based on the driver's driving records. We analyze the traffic information processing performance of the proposed model and the accuracy of the driving prediction model using traffic information collected from actual driving vehicles for the entire area of Seoul, as well as driving records and experimental data.

• Journal of Information Processing Systems
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• 제7권2호
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• pp.287-298
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• 2011

Efficient service description and modeling methodologies are essential for dynamic service composition to provide autonomous services for users in ubiquitous computing environments. In our previous research, we proposed a 'u-service' ontology which is an abstract and structured concept for device operations in ubiquitous environments. One of the problems that we faced during the design process was that there are not enough standards to analyze the effectiveness of a u-service ontology. In this paper, we propose a quality evaluation model to facilitate the design process of a uservice ontology. We extract modeling goals and evaluation indicators based on the uservice description specification. We also present quality metrics to quantify each of the design properties. The experiment result of the proposed quality model shows that we can use it to analyze the design of u-service ontology from various angles. Also, it shows that the model can provide a guideline, and offer appropriate recommendations for improvements.

• 한국정보시스템학회:학술대회논문집
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• 한국정보시스템학회 1997년도 춘계학술대회논문집 지역정보단지 조성과정보기술의 활용
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• pp.271-285
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• 1997

This paper address the issues of satisfaction factors to measure the service quality in computer communication service users. In order to develope a satisfaction factors' model, we study appropriate quality factors of the service through the focus group interviews with service users, and surveys the quality levels that users have felt in services. It also analyzes the relationship between the user's quality level and the quality factors by the statistical analyses. Based on the optimal regression model, we suggest an appropriate satisfaction model in PC communication service areas. That model shows that most users are interested in the fare for use. Use-fare factor is the most powerful one to the satisfaction model. Second one is usefulness, next is correctness. But connect-status factor is the only negative one. Most users think that its factor is in the way of fluent communication. So to keep the competitiveness in the PC communication service, the sixth negative factor should be modified as soon as possible.

• 디지털융복합연구
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• 제10권6호
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• pp.71-82
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• 2012

정보시스템의 급격한 발전으로 IT아웃소싱에 따른 서비스수준협약에 대한 관심이 높아지고 있다. 또한, 효율적인 IT운영서비스 관리가 절실한 상황에서 정보시스템에 대한 운영 감리의 필요성 및 인식도가 높아지고 있으며, IT를 어떻게 효율적으로 운영할 것인가에 대한 관심이 높아지고 있다. 그러나, 현행 정보시스템 운영감리 지침으로 한국정보화진흥원 시스템 운영 및 유지보수 지침이 존재하여 운영되고 있지만, 감리 현장에서는 감리원의 경험과 판단에 의해 결정되는 경우가 많다. 따라서 본 논문에서는 효율적인 운영감리를 위하여 한국정보사회진흥원의 운영지침의 정보시스템 감리 점검 프레임워크로 기반으로 서비스를 중심으로 한 운영감리 모형을 도출하였다. 서비스 계획, 서비스 제공, 서비스 지원, 서비스관리 영역에서 운영감리 점검항목을 도출하여 운영감리 모형을 제안하였으며, 전문가 설문 조사를 통하여 제안한 모형의 적합성을 검증하였다.

• Journal of Information Processing Systems
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• 제16권6호
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• pp.1281-1292
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• 2020

More and more cloud computing services are being applied in various fields; however, it is difficult for users and cloud computing service platforms to establish trust among each other. The trust value cannot be measured accurately or effectively. To solve this problem, we design a service-oriented cloud trust assessment model using a cloud model. We also design a subjective preference weight allocation (SPWA) algorithm. A flexible weight model is advanced by combining SPWA with the entropy method. Aiming at the fuzziness and subjectivity of trust, the cloud model is used to measure the trust value of various cloud computing services. The SPWA algorithm is used to integrate each evaluation result to obtain the trust evaluation value of the entire cloud service provider.

• 한국IT서비스학회지
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• 제14권1호
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• pp.251-262
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• 2015

This study checks the conceptual definition of domestic book curation which is still in the beginning stage, the necessity of developing service and business, domestic and overseas case of relevant service. Further, the problem of book recommendation service and the difficulty anticipated in the embodiment of service are investigated together and the business model as new IT service is suggested to supplement them. Specifically, the collection of book information and customer information (interest and purchase pattern) and the procedure of mining the collected information and the process of embodying visualization was presented in the sector of service in the first place. Then, the technical transfer of developed solution and the construction cost and the method to impose commission over contents sales are presented in the sector of business. Diverse social and economic effects are expected to realize by developing and utilizing such services, namely, promoting the distribution of excellent book which were kept in dead storage so far due to lack of marketing support, recommendation readers the proper books which are convenient and necessary.

• 정보처리학회논문지C
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• 제10C권6호
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• pp.769-778
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• 2003

XML 보안 명세 중 하나인 XML 키 관리 명세(XKMS)는 다양하고 복잡한 기능의 웹 서비스 애플리케이션에서 XML 문서의 서명을 검증하거나 암호화하는 공개키의 관리를 위한 프로토콜을 정의한다. 본 논문에서는 XML 표준 명세를 준수하는 XML 키 정보 프로토콜 서비스 모델을 제시하고, 표준에 근거한 프로토콜 컴포넌트의 참조 모델을 구현하였다. 또한 XML 기반 보안서비스 특성에 착안하여 안전한 XML 웹서비스를 위한 키 정보 서비스에 대한 분석과 보안 방안에 대해 기술한다. 프로토콜 컴포넌트는 식별정보가 주어졌을 때, 필요로 하는 공개키 위치와 식별자 정보, 공개키 연결 기능을 제공한다. 구현된 참조 모델은 향후 국내 e-비즈니스 프레임워크 구성 시 표준적인 보안 모델을 구현할 수 있는 지침을 제공할 것이다.