• Journal of Venture Innovation
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• v.2 no.2
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• pp.1-19
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• 2019

Various studies have been conducted on factors influencing the adoption of new technologies. In particular, the factors influencing customers' acceptance of new technologies that emerged along with the arrival of the 4th Industrial Revolution. Theoretical models are mainly based on the technology acceptance model (TAM) or Extended Unified Theory of Acceptance and Use of Technology : UTAUT2). However, there are no trust variables in these models. In this study, we added trust variable and tested augmented reality(AR). Three types - trust as an independent variable, as a mediating variable, and as a moderating variable - were analyzed statistically. As a result, trust was most explanatory when viewed as a mediating variable between independent variables and intention to use. In theory, it has been shown that trust acts as a mediating effect. In practice, trust is most important in accepting new technologies, so it is important to prioritize trust.

• The Journal of the Korea Contents Association
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• v.13 no.7
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• pp.190-202
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• 2013

Government has been doing policy PR to acquire policy support and government trust of people. Because it is believed that policy support and government trust of people can be a driving force of government activity. In this perspective, this study analyzed the effects of government's policy PR on the policy support and government trust of people focusing on the corporation partnership policy. According to the results, first people who have more positive attitude to the policy PR activity and its result, they have more positive attitude to the policy and its support. Second, people who have positive attitude to the corporation partnership policy, they have more positive attitude to the policy support. Third, people who have more positive attitude to policy support, they have more government trust(professionalism, ethicality, reliability). These results show that policy PR is effective method for inducing policy support and government trust of people. And for improving government trust. it is needed not only policy PR but also fair and transparent execution of policy.

• Journal of the Korean Data and Information Science Society
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• v.22 no.6
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• pp.1175-1182
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• 2011

In this paper, properties of exact confidence interval and some approximate confidence intervals of hyper-geometric parameter, that is the probability of success p in the population is discussed. Usually, binomial distribution is a well known discrete distribution with abundant usage. Hypergeometric distribution frequently replaces a binomial distribution when it is desirable to make allowance for the finiteness of the population size. For example, an application of the hypergeometric distribution arises in describing a probability model for the number of children attacked by an infectious disease, when a fixed number of them are exposed to it. Exact confidence interval estimation of hypergeometric parameter is reviewed. We consider the approximation of hypergeometirc distribution to the binomial and normal distribution respectively. Approximate confidence intervals based on these approximation are also adequately discussed. The performance of exact confidence interval estimates and approximate confidence intervals of hypergeometric parameter is compared in terms of actual coverage probability by small sample Monte Carlo simulation.

• Industry Promotion Research
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• v.7 no.4
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• pp.1-8
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• 2022

There are many one-shot devices that are used once and thrown away. One-shot devices such as firecrackers and ammunition are typical, and they are stored for a while after manufacture and then disposed of after use when necessary. However, unlike general operating systems, these one-shot devices have not been properly evaluated. This study first examines what the government does to secure reliability in the case of ammunition through ammunition stockpile reliability program. Next, in terms of statistical analysis, we show what the reliability analysis methods are for one-shot devices such as ammunition. Specifically, we show that it is possible to know the level of reliability if sampling inspection plan such as KS Q 0001 which is acceptance sampling plan by attributes is used. Next, non-parametric and parametric methods are introduced as ways to determine the storage reliability of ammunition. Among non-parametric methods, Kaplan-Meier method can be used since it can also handle censored data. Among parametric methods, Weibull distribution can be used to determine the storage reliability of ammunition.

• Journal of The Korean Institute of Defense Technology
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• v.5 no.1
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• pp.1-6
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• 2023

The number of test samples was calculated by setting the reliability growth management test period considering the weapon system development period. The optimal reliability growth management test design condition was 80% reliability, 60% confidence level, and 6 months of test period. At this time, it was analyzed that 4 test samples were required if 0 failure occurred, and 9 test samples were required if 1 failure occurred. Using the method of determining the number of samples presented in this paper, it can be used as a basis for acquiring a budget for the number of samples for reliability growth management when switching from the exploratory development stage to the system development stage.

• Information Systems Review
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• v.11 no.3
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• pp.83-106
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• 2009

Trust is becoming one of the critical forces that drive consumers into purchases in e-marketplaces, as consumers face uncertainty associated with buying online from unknown sellers. In this paper we propose a consumer trust model specifically designed for an online marketplace. It aims at examining how intermediary and site characteristics of an e-marketplace affect factors of trustworthiness, and understanding the relationship between trustworthiness factors and trust in intermediary. Findings from an empirical analysis indicate that both intermediary and site characteristics are positively associated with factors of trustworthiness - namely, competence, integrity, and benevolence. In addition, all the three factors of trustworthiness were found to have positive relationship with overall trust in intermediary; in particular, integrity had higher association with trust than the other two factors. The paper concludes with suggestions for building consumer trust for the owners of online marketplaces.

• Management & Information Systems Review
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• v.35 no.3
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• pp.23-36
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• 2016

As a new alternative to cash and credit-cards, mobile payment has been attracting world's attention. Although fin-tech, a mobile payment system provider, has been a rising issue, mobile payment systems is not yet widely used domestically. Because trust is the most important element in revitalizing the mobile payment system, we hoped to develop a hierarchical trust model to analyze the multi-dimensional trust factor. In this study, surveys were conducted to identify the components that affect the overall trust of a mobile payment system. It has been concluded that cognitive trust, affective trust, trust in system quality affect the overall trust of the system, and this trust affects the continuance intention of users.

• The Journal of the Korea Contents Association
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• v.16 no.12
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• pp.551-561
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• 2016

A user influence discrimination scheme using big data from social networks is needed. In this thesis, we propose a user influence discrimination scheme considering reliability in social networks. The proposed scheme measures reliability scores through social activities and simplifies a social network by collecting only reliable users. It also derives user influence by considering direct and indirect influences that depends on network degree between users. As a result, the proposed scheme improves the expandability of the user influence. In order to show the superiority of the proposed scheme, we compare it with the existing scheme through performance evaluations in terms of reliability and user influence.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.9 no.3
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• pp.209-215
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• 2009

Nowadays there are gradually the importance issues of embedded software for productivity as the fusion and complexity of industry. Especially, people are recognizing the importance of reliability within the embedded software systems(e.g. weapons and medical equipments, etc.). It makes currently mention of software reliability on ISO/IEC 9126, 12119, etc.. However, it is insufficient for the embedded software area in spite of being mentioned the generic software. To do this, we suggest our embedded software reliability assessment through extracting the embedded software meaurement items from reliability assessment items of ISO/IEC 9126, 12119 series.

• Korean Journal of Culture and Social Issue
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• v.11 no.spc
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• pp.163-174
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• 2005

The purpose of this paper is to review eight researchers on the trust and mistrust of Korean society, and to suggest the tasks of psychological researches in terms of cultural psychological perspective. In traditional Korean culture, feeling of trust is emerged from the family relationship formed by the blood ties based on father-son relation. In this respect, the meaning of trust might be different from that of western culture, which is emerged from the market relationship formed by the contract based on husband-wife relation. Now, the Korean family seems to be disorganized rapidly, so in this sense, it is suggested that recent Korean society might be the trust-absent society rather than the mistrust society. Also, it is suggested that further psychological researches must be performed in the serious consideration of the indigeneous characteristics of Korean culture.