• Journal of KIISE:Software and Applications
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• v.36 no.1
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• pp.1-9
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• 2009

In heterogeneous and distributed computing environments, with an increasing number of Web services providing similar functionalities, the reliability of Web services is a critical decision factor. To fulfill the open business model such as cooperation among enterprises, several Web services can be composed into the upper level business transaction. In Web services composition, the reliability of services is more and more critical. Though each unit Web service can be reliable, the reliability of the composed service is not guaranteed. Thus a way to efficiently assess and select composed Web services is needed. In this paper, we define new metrics for measuring the trust value of Web services, and propose an evaluation method to predict the trustworthy degree of the composed services based on the metrics. We also define a conceptual framework to support optimal Web services selection based on the proposed trust evaluation method. By selecting using the quantitative measurement rather than intuitive selection of the service user, it allows the service users to select the high reliable service meeting their quality requirements well.

• Proceedings of the Korea Association of Information Systems Conference
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• 2005.12a
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• pp.225-234
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• 2005

온라인 쇼핑에 있어서 여성 고객의 서비스 품질 인식과 신뢰 문제는 중요한 이슈이다. 본 연구는 신뢰를 선의, 성실성, 능력의 관점에서, 그리고 서비스 품질을 유형성, 신빙성, 반응성, 확신성, 공감성의 관점에서 다차원적으로 접근하여 연구 가설과 모형을 설정하고 그 원인-결과 관계를 실증적으로 분석한다. 분석 결과, 확신성과 공감성 차원의 서비스 품질이 선의/성실성 차원의 신뢰에 영향을 주는 것으로 나타났다. 그리고 능력 차원의 신뢰에 영향을 미치는 것은 5개 서비스 품질 차원 중 오직 확신성뿐인 것으로 드러났다. 또한 고객 충성도에 실질적인 영향을 미치는 것은 확신성 차원의 서비스 품질과 능력 차원의 신뢰이라는 것이 확인되었다. 여성 고객이 인터넷 상점에 대해 충성도를 갖게 되는 이유가 그 인터넷 상점의 선의/성실성 때문이기보다는 능력 때문이라는 점은 온라인 기업들에게 시사하는 바가 크다. 더욱이 온라인 기업들은 서비스 품질, 구체적으로는 여성 고객의 확신성 인식을 제고하면 이것이 자사의 능력을 고객에게 입증하는 방법이 될 수 있고, 결과적으로 여성 고객의 재구매 의사나 우호적인 구전을 이끌어 낼 수 효과적인 방법이 될 수 있다는 점을 주목할 필요가 있다.

• The Journal of the Korea Contents Association
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• v.12 no.9
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• pp.293-310
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• 2012

The purpose of this paper is to explain and identify how services offer-related characteristics of services providers such as service competence, reliability, and responsiveness have an effect on cognitive trust and customization characteristics of services providers has influences on affective trust. And it is to explain and identify how cognitive trust has an effects on affective trust and loyalty, and how affective trust has influence on loyalty in services setting such as apparel services of search attribute, hair services of experience attribute, and dental services of credence attribute. A survey study was conducted to collect the data with consumers who have experience purchase or search on services in apparel services, hair services, and dental services. Analysis of structural equation modeling with AMOS 18 and SPSS win 19.0 was performed to test the research hypothesis. The results of the study are as follows: First, responsiveness characteristics of service providers has an effect on cognitive trust, which in turn influences on affective trust. But there was on effect on customer loyalty by cognitive trust and affective trust in apparel service setting. Second, service competence characteristics and reliability characteristics of service providers have effect on cognitive trust, and customization characteristics of service providers has influences on affective trust, and then both of them, in turn, was effect on customer loyalty in hair service setting. Third, reliability characteristics of service providers has effects on cognitive trust and customization characteristics of service providers has influences on affective trust, and then cognitive trust has effects on customer loyalty, but there was no effects on affective trust by customer loyalty.

• Proceedings of the Korean Information Science Society Conference
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• 2001.10c
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• pp.334-336
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• 2001

멀티캐스트를 이용하는 각종 서비스가 증가하고 그중 파일 전송 서비스, 인터넷 방송 등과 같은 응용서비스는 신뢰성 있는 멀티캐스트를 요구한다. 현재의 IP 멀티캐스트 서비스의 특성상 신뢰성 있는 멀티캐스트를 하기 위해서 신뢰전송 프로토콜이 필요하다. 이러한 방법가운데 계층적 트리를 구축하여 신뢰성을 보장하려는 노력이 활발하게 진행되고 있다. 본 논문에서는 라우터 지원방식을 제공하여 멀티캐스트 서비스에서 효율적으로 신뢰성을 보장하는 방법을 제안한다. 기존의 라우팅 지원방식이 복잡한 라우터 기능을 요구하는 반면 제안하는 방법은 간단하게 메시지 타입만 검사하여 네트워크 토폴로지와 병합하는 제어한다. 이로써 링크간의 불필요한 중복데이타를 줄이고 효율적인 링크사용을 통하여 신뢰성 보장의 효율성을 높일 수 있다.

• The Journal of the Korea Contents Association
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• v.11 no.4
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• pp.347-360
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• 2011

This paper is to identifies relationship between service quality, trust toward employees, trust toward store and store loyalty by investigate how service quality influences on trust toward employees and trust toward store, and its, in turn, influence on store loyalty and explain the moderating effect in relationships between service quality and trust toward employees, and service qualty and trust toward store in bank services setting. A survey study was conducted to collect the data with the actual service purchasers at domestic mayor banks. Analysis of structural equation modeling with AMOS 18.0 was performed to test the research hypothesis. The results of the study are as follows: First, it was found to the moderating effect in relationships between empathy dimension of service quality and trust toward employees, and assurance dimension of service quality and trust toward store. Second, service quality shows differential effects on both trust toward employees and trust toward store by dimension but trust toward employees influence on both trust toward store and it, in turn, influence on store loyalty. To sum up, it have to build empathy of service quality for increase of trust toward their customer who have high duration of relationship and have to build assurance of service quality for increase of trust toward store in bank service settings.

• Korean Business Review
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• v.16
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• pp.1-21
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• 2003

Trust affects marketing practices and purchasing performance in the context of buying and selling business services. Despite the importance the previous studies on business services have not fully investigated the role of trust and the effects of trust on buying and selling strategies. Additionally in-depth studies exploring the links between trust-strategies-performance have not systematically performed both in domestic and international markets. This study, in the context of purchasing business services, investigates the effect on trust of suppliers' characteristics and relational characteristics between sellers and buyers. This study also explores the effect of trust toward sellers and buyers on purchasing performance. The results of this study should contribute the understanding on the role of trust in purchasing and selling business services. Building and maintaining trust must be one of the major key success factors in the relationship between sellers and buyers of business servies.

• Proceedings of the Korean Information Science Society Conference
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• 2005.11a
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• pp.238-240
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• 2005

웹 서비스는 서비스 가용성(availability)과 성능(performance)연에서 신뢰성을 항상 보장해 주지 못한다. 동적 서비스 조정(Dynamic Service Coordination)은 웹 서비스를 호출하는 시스템이나 응용 프로그램 내에서의 비 신뢰적인 문제상황을 처리하는 기술이다. 이 환경 내에서의 웹 서비스는 제한된 시간내에 응답 하지 못하는 등의 문제가 발생 할 경우, 신뢰적인 웹 서비스의 호출을 위해 다른 웹 서비스로의 대체작업이 런타임(run-time)에 이뤄진다. 본 논문에서는 웹 서비스를 위한 동적 서비스 조정 프레임워크를 제안한다. 프레임워크 내에서 동적 서비스 조정의 지원 및 웹 서비스 호출을 담당하는 클래스와 워크플로우가 생성되고, 생성된 클래스 메소드를 호출함으로써 신뢰적인 웹 서비스 호출이 가능하다. 호출작업이 간접적으로 이뤄짐으로 인해 어느 정도의 성능적 손실이 발생하나, 이 방식을 통해 얻는 시스템 유연성과 신뢰성의 측면을 고려한다면, 충분히 감 수 될 수 있다.

• Journal of Digital Convergence
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• v.8 no.1
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• pp.11-26
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• 2010

The purpose of this paper is to study building and maintaining consumer trust in mobile contents for tourism and travel in perspective of public sector. Mobile contents services are increasing rapidly. Tourism contents in mobile services are non profit business model in an early and immature stage toward the ubiquitous era. Non-profit organization plays a role as service provider through Internet and wireless telecommunication in an information-intensive and network-oriented environment. This article is proposed nonprofit organizations as tourism contents service provider to identify a conceptual framework that can build continuous trusted mobile contents under ubiquitous environment according to developing and maintaining stage. The results based on the focus group interview methodology highlights a conceptual foundation for service providers in nonprofit domain.

• Proceedings of the IEEK Conference
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• 2007.07a
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• pp.141-142
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• 2007

무선 통신 기반의 유비쿼터스 센서네트워크에서는 현재까지 신뢰성 보장에 대해서는 거의 언급되거나 논의되지 않았던 영역이다. 하지만 센서네트워크의 서비스 확대를 위한 어플리케이션을 찾고자 할 때 가장 중요하게 생각되어지는 것이 바로 신뢰성이 된다. 이 신뢰성이 확보된다고 하면 신뢰성이 바탕이 되는 기존의 인터넷의 바탕의 서비스가 USN에 침투되기도 용이하며 더불어서 신뢰성이 바탕되는 새로운 서비스의 추가도 가능해 진다. 이처럼 USN에서도 신뢰성은 서비스 확대의 차원에서 현시점에서 우선적으로 고려되어야 하는 사항이 되었다. 이에 본 논문에서는 현재까지 연구되었던 방법들을 정리하고 이러한 방법들을 분석하고 비교하고자 한다.

• The Journal of the Korea Contents Association
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• v.15 no.10
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• pp.517-534
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• 2015

The purpose of this study is to identifies the effects of service quality factors on satisfaction and trust, and then verifies the causal relations among satisfaction, trust, commitment and using intention in mobile service setting. A survey was conducted to collect the data with consumers who had the actual using experience about mobile services. Analysis of structural equation modeling with SPSS 20.0 and AMOS 16.0 were performed to test the research hypothesis. The result of the study as follows: First, it was found to difference in relationship between dimensions of mobile service quality and satisfaction except for the pleasure. Second, the sociality was found to significant path coefficients in relationships with trust. Third, satisfaction and trust have influence on commitment and commitment has effects on using intention, but there had no significant path coefficients between satisfaction and trust, and then both satisfaction and trust were not found to significant path coefficients in relationship with using intention. Therefore, Marketers of mobile service corporate have to give excellent service quality to consumers who have using their mobile service for increase of using intention through build up trust and commitment by consumers who satisfied.