• 한국콘텐츠학회논문지
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• 제14권10호
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• pp.685-696
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• 2014

최근 많은 기업들이 서로간의 신뢰를 바탕으로 협력관계를 구축해 나가고 있다. 이렇게 형성된 파트너와의 관계는 좋은 성과를 거두는데 중요한 역할을 하고 있으며, 특히 공동으로 상품을 개발하는데 많은 도움이 되고 있다. 따라서 본 연구에서는 거래업체 사이의 거래관계에 있어 중요한 요소 중 하나인 의사소통이 성과에 어떠한 영향을 미치는지 확인해 보았다. 분석결과 거래업체 사이의 의사소통은 신뢰에 긍정적인 영향을 주며 반대로 갈등에는 부정적인 것으로 확인되었다. 또한 관계 파트너에 대한 신뢰는 협력과 신제품성과에 긍정적인 영향을 주는 것으로 나타났지만, 갈등은 부정적인 영향을 주는 것으로 확인되었다. 즉, 기업간의 관계에서 신뢰형성은 좋은 성과를 가져오지만, 반대로 서로간의 갈등이 커지면 성과는 감소하게 된다. 따라서 거래업체 사이에 발생하는 갈등은 원만하게 해결하고 신뢰를 통해 협력관계를 형성하게 된다면 신제품 개발 시 좋은 성과를 얻을 수 있을 것이다.

• 한국유기농업학회지
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• 제26권1호
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• pp.73-82
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• 2018

The alternative marketing can be defined a face to face regional marketing that commodities are traded based on mutual trust and understanding which have been accumulated through relationships formation and interaction between producers and consumers. Essences of an alternative marketing are formation, expansion and solidarity of relationships between producers and consumers, mutual trust and communication, and cooperation. Based on these, it makes it's principle to trade regionally and shorten food mileage and psycho-social distance. For example, there are local food direct stores, local food markets, farmer's markets, food package sales, CSA, local food school or public meal and so on. In alternative marketing, the relationship among them is especially considered very important in marketing process, not just a flow of commodities.

• Journal of information and communication convergence engineering
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• 제5권2호
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• pp.144-149
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• 2007

Grid technologies make it possible for IT resources to be shared across organizational and security domains. The traditional identity-based access control mechanisms are unscalable and difficult to manage. Thus, we propose the FAS (Federation Agent Server) model which is composed of three modules: Certificate Conversion Module (CCM), Role Decision Module (RDM), and Authorization Decision Module (ADM). The proposed FAS model is an extended Role-Based Access Control (RBAC) model which provides resource access capabilities based on roles assigned to the users. FAS can solve the problem of assigning multiple identities to a shared local name in grid-map file and mapping the remote entity's identity to a local name manually.

• 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.

• 한국인터넷방송통신학회논문지
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• 제12권3호
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• pp.209-216
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• 2012

이 글은 소셜 네트워크 서비스와 스마트폰 기술의 시야에서 사용자 손수 제작 콘텐츠의 커뮤니케이션 구조를 모색하였다. 연구 모델의 개발을 위해, 저자는 정밀한 성공 척도의 개발과 선생 연구를 통해 사용자 손수 제작 콘텐츠의 성공 요인을 선별하는데 역점을 두었다. 제안된 모델은 페이스북과 연결된 플리커 등의 사례와 같은 서비스를 고찰하면서 각 개별 서비스 간의 신뢰의 관련성 그리고 소셜 자본의 전환 등에 대한 내용으로 구성된다. 그 결과 네트워크 자체의 조직 특성과 구조가 사용자 손수 제작 콘텐츠의 신뢰 흐름을 파악하는데 중요한 요인이라는 점을 보여주었다. 그리고 소셜 네트워크 서비스를 통해 협업하는 관계를 가능하게 하는 개방된 API 기술들과 Single sign on의 기술을 고찰하였다. 사용자 손수 제작 콘텐츠의 구체적인 특징은 결국 소셜 자본 및 신뢰를 증진시키는데 소셜 네트워크 서비스의 직접 또는 간접적인 네트워크 효과가 갖는 의미를 기술하였다.

• International Journal of Computer Science & Network Security
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• 제21권6호
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• pp.89-100
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• 2021

Smart Grid Network (SGN) is a next generation electrical power network which digitizes the power distribution grid and achieves smart, efficient, safe and secure operations of the electricity. The backbone of the SGN is information communication technology that enables the SGN to get full control of network station monitoring and analysis. In any network where communication is involved security is essential. It has been observed from several recent incidents that an adversary causes an interruption to the operation of the networks which lead to the electricity theft. In order to reduce the number of electricity theft cases, companies need to develop preventive and protective methods to minimize the losses from this issue. In this paper, we have introduced a machine learning based SVM method that detects malicious nodes in a smart grid network. The algorithm collects data (electricity consumption/electric bill) from the nodes and compares it with previously obtained data. Support Vector Machine (SVM) classifies nodes into Normal or malicious nodes giving the statues of 1 for normal nodes and status of -1 for malicious -abnormal-nodes. Once the malicious nodes have been detected, we have done a trust evaluation based on the nodes history and recorded data. In the simulation, we have observed that our detection rate is almost 98% where the false alarm rate is only 2%. Moreover, a Trust value of 50 was achieved. As a future work, countermeasures based on the trust value will be developed to solve the problem remotely.

• International Journal of Computer Science & Network Security
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• 제21권12spc호
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• pp.565-569
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• 2021

The rapid growth and development of ICT (Information and Communication Technology) and internet services has boosted the adoption of Mobile Government services all around the globe. There is a huge increase in the adoption of government services during COVID-19 pandemic. Existing Mobile Government (MG) solutions are not trustworthy and secure. This paper provides secure and trustworthy solution for mobile government, proposes a centralized smart governance architecture which is based on trust manager. Our proposed work has Wireless Bridge Certifying Authority (WBCA) and Wireless Public Key Infrastructure (WPKI) thereby ensuring security and privacy. Our proposed work ensures trust with WBCA as WBCA acts as a Trust Manager (TM). Proposed protocol has less computational cost and energy cost

• 유통과학연구
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• 제14권6호
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• pp.89-98
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• 2016

Purpose - This article tackles risk communication issues and aims to address the characteristics of MERS risk information distribution in South Korea, and secondly to examine the communicative behavior of the public health authority in terms of the quality of communication strategies. Thirdly, the study attempts to figure out the risk communication to cope with MERS through the applications of SMCRE model in chronological order. We employ the social amplification of risk framework for analyzing the emergent public response as one of the main approaches. Research Design, Data and Methodology - The main framework of this study is theoretically based on the social amplification of risk, which describes signals about risk transmitted and processed by individuals and social groups. The model also reflects the interactions between social groups and institutes about disaster-related risk issues, which are potential amplifiers or attenuators of communication signals. S-M-C-R-E Model is methodologically employed to examine the social amplification for MERS risk information in each period, which we defined operationally. The proposed methodology allows the assessment of effectiveness and ineffectiveness on risk communication to be conceptualized as a countermeasure against disasters. The paper focuses on exploring how social risk amplification can be applied and organized in each stage. Results - The SMCRE model describes the exchange of risk information and is also applied to all forms of communication between stakeholders including public health authority, local government and media. Each factor of risk communication includes source, message, channel, receiver and effect. The results support that the effective risk communication involves not only the improved reliability of public health authority as a key factor of risk communication, but also a close cooperation and good collaboration with local governments. It does not seem to be possible that the government-initiated risk communication based on controllability and management cope effectively with infectious disease in early stage. The results of this study imply that the shared risks between local, regional and national authorities can enhance risk communication system. Conclusions - The study supports that the disparities in how disaster-related risk information is interpreted and coded, have made effective risk communication and public sense-making impeded. Our findings support a more communicative discussion about the role of risk information sharing between governments for the improvement of emergency management and underline the importance of social elements in the risk communication, such as relationship and trust building. Findings suggest that trust building between stakeholders could be added to help explain the processes of social amplification and attenuation of risk. It would be recommended that the continuous risk communication with all the involved stakeholders will be able to help national health promotion policy to be improved regarding emergency management. Furthermore, risk communication has to be a scientific approach for the communication pertaining to potentially sensitive or controversial situations with public concerns and low public trust.

• Nuclear Engineering and Technology
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• 제50권7호
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• pp.1168-1172
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• 2018

This study went beyond making an indicator simply based on theoretical arguments, and explored a wide spectrum of different types of perceptions about energy safety to make a concept of energy safety for the Korean society. The energy safety schemata of people can be divided into three types. Type1 is concern about multi-level risks-responsibility-centric, type2 is concern about security and personal burden-expertise-centric, and type3 is concern about health and personal burden-responsibility-centric. Questions were designed on the basis of the characteristics, differences and commonalities of the three types of perceptions, explored through the Q methodology, and Koreans' perception of nuclear safety was examined. Based on the results of this research the following components of trust in nuclear safety were derived, risk perception, responsibility, honesty, expertise and procedural justification. The items for specifically evaluating them were developed, and factor analysis was conducted, and as a result, the validity of each item was proven. The components of the nuclear safety trust indicator do not exist independently, but influence each other continuously through interactions. For this reason, rather than focusing on any one of them, laws and systems must be improved first so that they can move together in one big frame.

• International journal of advanced smart convergence
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• 제9권2호
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• pp.212-223
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• 2020

We study to confirm the relationship between leadership trust and job satisfaction on the leadership style of managers recognized by ICT organization members. To this end, the research hypothesis established by using SPSS23.0 for the survey results of 230 ICT organization members was analyzed as follows. First, the hypothesis 1 person leadership type (individual consideration: H1-1, intellectual stimulation: H1-2, charisma: H1-3, conditional compensation: H1-4, exceptional reward: H1-5) had a significant effect on leader trust. The results were obtained. Second, the hypothesis 2 manager's leadership type (individual consideration: H21-1, intellectual stimulation: H2-2, charisma: H2-3, conditional compensation: 2-4, expected compensation: H2-5) is based on job satisfaction. As a result of verifying the impact relationship, all showed significant effect on job satisfaction. Third, it acted as a positive factor in the job satisfaction of the leader of the hypothesis 3-member organizational member. It was confirmed that the job satisfaction of organizational members started based on the trust of actual leaders. Fourth, the role of leadership trust was partially confirmed between leadership type and job satisfaction. Through this study, in order to improve job satisfaction of ICT organizational members, the importance of exerting competency on the leadership type of managers and trusting the leaders on the characteristics consistent with ICT organizational characteristics was emphasized.