• Journal of Information Science Theory and Practice
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• 제2권3호
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• pp.6-17
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• 2014

The purpose of this study is to examine to what extent the context in which people interact with online information affects people's credibility perceptions. In this study, credibility assessment is defined as perceptions of credibility relying on individuals' expertise and knowledge. Context has been characterized with respect to three aspects: Context as user goals and intentions, context as topicality of information, and context as information activities. The data were collected from two empirical studies. Study 1 was a diary study in which 333 residents in Michigan, U.S.A. submitted 2,471 diary entries to report their trust perceptions associated with ten different user goals and nine different intentions. Study 2 was a lab-based study in which 64 subjects participated in performing four search tasks in two different information activity conditions - information search or content creation. There are three major findings of this study: (1) Score-based trust perceptions provided limited views of people's credibility perceptions because respondents tended to score trust ratings consistently high across various user goals and intentions; (2) The topicality of information mattered more when study subjects assessed the credibility of user generated content (UGC) than with traditional media content (TMC); (3) Subjects of this study exerted more effort into making credibility judgments when they engaged in searching activities than in content creation. These findings indicate that credibility assessment can or should be seen as a process-oriented notion incorporating various information use contexts beyond simple rating-based evaluation. The theoretical contributions for information scientists and practical implications for web designers are also discussed.

• 벤처창업연구
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• 제8권2호
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• pp.35-45
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• 2013

본 연구에서 기존의 품질경영 모형에서 발굴된 모형을 가설로 설정하여 이용한 연구모형으로 커뮤니케이션, 프로세스 경영, 정책 및 제도, 표준화, 조직원 신뢰 그리고 조직원 만족을 연구가설로 채택하여 변수간의 관계를 실증적으로 검증하였다. 본 연구를 통해 얻은 결과를 요약하면 다음과 같다. 프로세스 경영, 정책 및 제도, 커뮤니케이션, 표준화 등과 같은 품질경영활동은 조직원 신뢰에 대하여 유의한 영향을 미치고, 조직원 신뢰는 조직원 만족에 유의한 영향을 미치는 것으로 나타났다. 본 연구를 통해 조직관리를 위한 함축적 의미는 다음과 같다. 첫째, 조직원들의 조직에 대한 만족을 위해서 상사, 회사, 업무처리, 기록 등과 같은 조직원들의 신뢰 향상의 매우 중요하다. 둘째, 경영 정책 및 제도, 프로세스경영뿐만 아니라 조직원들의 신뢰 향상을 위해서는 조직원, 고객, 쉬운 용어사용 등과 같은 커뮤니케이션 향상과 개선 프로세스, 문제수정, 측정기준 확립과 성과유지를 위한 개선혁신성의 향상이 매우 중요한 것으로 연구 조사되었다.

• 보건의료산업학회지
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• 제7권3호
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• pp.137-147
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• 2013

This study classifies the marketing mix of LASIK eye surgery clinics into 7Ps, examines the influence of each factor of 7Ps(product, place, price, promotion, process, people and physical evidence) on customer satisfaction, and investigates the effect of customer satisfaction on trust and relationship commitment. Survey of 500 patients who received surgeries in 3 eye clinics in Busan area was conducted through self-administered questionnaires, and, with this data, path analysis was performed to estimate the study model. Main result showed that, among 7Ps, product, price, promotion, people and physical evidence had significant positive effect on customer satisfaction which, in turn, had significant positive effect on trust and relationship commitment. Also, it was found that trust positively affected relationship commitment. This result would be considered helpful in medical institution's efforts to establish trust on customer satisfaction and maintain relationship commitment. It also implies that, in order to enhance competitiveness in increasingly competitive medical market, establishment of proper marketing strategy is urgently required where the determinants of customer satisfaction are effectively administered and ultimate relationship commitment of customers based on trust can be maintained and enhanced.

• 대한안전경영과학회지
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• 제16권3호
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• pp.145-154
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• 2014

Performance based design(PBD) is the method to make a fire safety design against them after predicting the factors of fire risk in a building. Therefore, predicting fire risk in a building is very important process in PBD. For predicting fire risk of a building, an engineer of PBD must consider various factors such as ignition location, ignition point, ignition source, first ignited item, second ignited item, flash over, the state of door and fire suppression system. But, it is difficult to trust fire safety capacity of the design because the process in Korea' PBD is unprofessional and unreasonable. This paper had surveyed some cases of PBD that had been made in Korea to find the problems of the process to predict fire risk. And it have proposed the improvements of process to predict fire risk of a building.

• 한국유기농업학회지
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• 제28권3호
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• pp.315-334
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• 2020

This study was conducted to analyze factors affecting acceptance of smart farm technology. Smart farm technology is rapidly being introduced to agriculture in accordance with the progress of the 4th Industrial Revolution, but research on this is still little. Therefore, in this study, based on the unified theory of acceptance and use of technology (UTAUT), a research model reflecting the characteristics of smart farm technology was constructed. To test this, empirical analysis was performed. A survey was conducted for students in smart farm technology education and adult male and female farmers who are currently planning to operate smart farms. Valid 204 sample were used for analysis. The hypothesis test was based on multiple regression analysis using SPSS 24 statistical package. For the mediating effect and moderating effect, Process Macro 3.4 based on the regression equation was used. The results of testing the hypothesis are as follows. First, in the causal hypothesis test, it was shown that performance expectancy, social influence and price value have a significant positive effect on the intention to use smart farm technology. On the other hand, effort expectancy, facilitating conditions were not tested for a significant influence on the use of smart farm technology. As a result of analyzing the mediating effect of trust, it was found that trust plays a mediating role between performance expectancy, effort expectancy, social influence, facilitating conditions, price value and intention to use smart farm technology. In particular, the effort expectancy has not been tested for a direct significant effect on intention to use smart farm technology, but it has been shown to have an impact through trust. Trust was found to be a full mediating between the effort expectancy and the intention to use the smart farm technology. The current IT level of prospective users has been shown to play a moderating role between performance expectancy, facilitating conditions and intention to use smart farm technology. In particular, the IT level was found to strengthen the relationship between performance expectancy and intention to use smart farm technology. Based on the results of these studies, academic and practical implications were suggested.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제13권12호
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• pp.6214-6242
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• 2019

Routing in mobile ad hoc networks is performed in a distributed fashion where each node acts as host and router, such that it forwards incoming packets for others without relying on a dedicated router. Nodes are mostly resource constraint and the users are usually inclined to conserve their resources and exhibit selfish behaviour by not contributing in the routing process. The trust and reputation models have been proposed to motivate selfish nodes for cooperation in the packet forwarding process. Nodes having bad trust or reputation are detected and secluded from the network, eventually. However, due to the lack of proper identity management and use of non-persistent identities in ad hoc networks, malicious nodes can pose various threats to these methods. For example, a malicious node can discard the bad reputed identity and enter into the system with another identity afresh, called whitewashing. Similarly, a malicious node may create more than one identity, called Sybil attack, for self-promotion, defame other nodes, and broadcast fake recommendations in the network. These identity-based attacks disrupt the overall detection of the reputation systems. In this paper, we propose a reputation-based scheme that detects selfish nodes and deters identity attacks. We address the issue in such a way that, for normal selfish nodes, it will become no longer advantageous to carry out a whitewash. Sybil attackers are also discouraged (i.e., on a single battery, they may create fewer identities). We design and analyse our rationale via game theory and evaluate our proposed reputation system using NS-2 simulator. The results obtained from the simulation demonstrate that our proposed technique considerably diminishes the throughput and utility of selfish nodes with a single identity and selfish nodes with multiple identities when compared to the benchmark scheme.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제11권9호
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• pp.4197-4219
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• 2017

Cloud computing is a new service to provide dynamic, scalable virtual resource services via the Internet. Cloud market is available to multiple cloud computing resource providers and users communicate with each other and participate in market transactions. However, since cloud computing is facing with more and more security issues, how to complete the allocation process effectively and securely become a problem urgently to be solved. In this paper, we firstly analyze the cloud resource allocation problem and propose a mathematic model based on combinatorial double auction. Secondly, we introduce a trust evaluation mechanism into our model and combine genetic algorithm with simulated annealing algorithm to increase the efficiency and security of cloud service. Finally, by doing the overall simulation, we prove that our model is highly effective in the allocation of cloud resources.

• 디지털융복합연구
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• 제18권11호
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• pp.111-121
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• 2020

본 연구는 자동차 제조기업의 조직문화가 조직신뢰와 조직몰입에 미치는 영향 관계를 살펴보고, 연구결과를 기업의 경영관리에 실무적으로 도움을 주고자 하였다. 선행연구들의 이론적 배경과 연구모형을 참조하여 연구모형을 설정하였으며, 실증분석을 위하여 창원에 본사를 둔 한국의 대표적인 자동차기업인 G-자동차의 조직구성원을 대상으로 362부의 표본을 확보하였다. 본 연구의 실증분석 결과를 요약하여 제시하면 다음과 같다. 첫째, 조직문화와 조직몰입 간의 관계에서 개발문화와 집단문화가 통계적으로 유의한 것으로 나타났다. 둘째, 조직문화와 조직신뢰 간의 관계를 살펴본 결과, 개발문화와 집단문화가 유의적인 정(+)의 효과를 보여 주었다. 셋째, 조직신뢰와 조직몰입 간의 관계 분석에서 매우 유의한 정(+)의 결과를 나타내고 있어 조직신뢰와 조직몰입은 밀접한 관계가 있음이 밝혀졌다. 넷째, 조직신뢰의 매개효과를 분석한 결과, 조직문화 요인들 중에서 개발문화와 집단문화는 부분매개효과를 보여주었으며, 합리문화와 위계문화는 매개효과가 없는 것으로 나타났다.

• 경영과정보연구
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• 제33권1호
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• pp.65-81
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• 2014

정보기술 서비스에 대한 많은 연구가 진행되었음에도 불구하고 정보기술 서비스를 이용 후 서비스 실패에 대한 회복과정을 살펴본 연구는 거의 진행되지 않았다. 본 연구에서는 스마트폰 애플리케이션 서비스 이용자를 대상으로 서비스 사용 실패 후 서비스 실패에 대한 회복과정을 살펴보고자 한다. 뿐만 아니라, 서비스 유형에 따라 사용 목적이 달라지듯 서비스 유형에 따라 회복과정도 달라질 것이라고 예상되기 때문에 서비스 유형에 따른 서비스 회복과정을 살펴보고자 한다. 이를 위해, 본 연구에서는 시나리오 기법을 통해 다양한 서비스 실패 유형을 선정하였고, 이를 기반으로 설문을 진행하였다. 연구 결과, 절차적 공정성과 상호 작용 공정성은 신뢰에 영향을 미치는 것으로 나타났으며, 신뢰는 모든 사용 품질에 영향을 끼치는 것으로 나타났다. 정보 품질 및 서비스 품질의 경우 로열티에 영향을 끼치는 것으로 나타났으며, 마지막으로 서비스 유형에 따라 조절효과가 있는 것으로 나타났다.

• 품질경영학회지
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• 제47권1호
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• pp.59-74
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• 2019

Purpose: Despite the fact that the majority of domestic firms are small in size, there have been few studies conducted to understand the leadership effectiveness of small firm CEOs. Based on the upper echelon theory, this study attempts to demonstrate empirically that transformational leadership of small firm CEOs can increase the innovative behavior of employees. In addition, the present study examines mediating effects of CEO trust perceived by employees when transformational leadership affects employees' innovative behavior. Methods: The survey data of CEOs'transformational leadership, innovative behavior of employees, and perceived CEO trust were collected from 176 employees working in domestic small firms. Hierarchical regression analyses were performed to examine the main effects between transformation leadership and innovative behavior and mediating effects of CEO trust perceived by employees. Results: The results show that CEOs' transformational leadership is significantly related to the innovative behavior of employees in the current sample. Results also indicate that CEO trust perceived by employees reveals a mediating effect in the process of transformational leadership affecting innovative behavior. Conclusion: The results show that as suggested by the upper echelon theory, the leadership of small firm CEOs can have a significant impact on positive job-related behaviors and attitudes of employees. The results also contribute to expand on the understanding of the relationship between transformational leadership and innovative behavior by explaining that transformational leadership can mediate trust in CEOs in enhancing employees'innovative behavior. Theoretical and practical implications are reviewed, and limitations of the study and suggestions for future research are addressed.