• Journal of the Korea Society of Computer and Information
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• v.17 no.8
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• pp.145-161
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• 2012

This study aims to explore how the degree of education related to information systems and the Internet literacy affect perceived security risk and how these three variables affect online transaction intention based on the Technology Acceptance Model (TAM). Since using smartphone to purchase necessary products is increasing, the study provided two different cases of using the existing Internet and smartphone to buy products. As a result of an empirical test, the degree of information system education, internet literacy, and perceived security risk had significant effects on online transaction intention mediating perceived usefulness and perceived ease of use. Unlike the expectation, the more people have education related to information systems, the more they have knowledge about hacking or cases of privacy infringement, leading to even more concerns about security, thereby believing the Internet transactions require much effort. The more the education about information system, the more we have concerns about security; therefore, perceived security risk have a positive(+) effect on perceived usefulness not a negative(-) effect. Lastly, while the degree of education related to information systems has relations with the recognition of the usefulness of the Internet transaction, the study showed that there are no relations of recognizing the usefulness and the ease of use of smartphone.

• Journal of Digital Convergence
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• v.15 no.4
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• pp.213-221
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• 2017

The purpose of this study was to examine the acceptance decision factors for mobile easy payment services focused on samsung pay. To attain these purpose, the subjects for data were 229 university students. The data were analyzed by path analysis using SPSS 21 program and AMOS program. The results were as follows: First, Perceived ease of use influenced positively on mobile easy payment service attitude. Second, Perceived usefulness influenced positively on mobile easy payment service attitude. Third, Perceived ease of use influenced positively on intention of continuous use. Fourth, Perceived usefulness influenced positively on intention of continuous use. Fifth, Attitude influenced positively on intention of continuous use. Sixth, Perceived risk influenced not significantly on intention of continuous use. This study identified the acceptance decision factors for mobile easy payment services as perceived ease of use, perceived usefulness and attitude.

• Journal of Korea Society of Industrial Information Systems
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• v.16 no.5
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• pp.115-126
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• 2011

This study focused on analyzing the effects of ease of use, usefulness on switching barrier and loyalty in the Korean telecommunication market. This study formulated a structural equational model, in which ease of use was adapted as an exogenous variable and in which usefulness, switching barrier were included as intermediate variables, having influences to the endogenous variable such as customer satisfaction and loyalty. In this study 6 hypotheses had been formulated, on which this research model was based, in order to test the significance of structured paths, suggested, in the previous articles, that having high interactive effects. This study collected the effective questionnaires of 452 respondents who had jobs nationwide and who used the telecommunication terminals and then analyzed with AMOS19 and SPSS19 to test the hypotheses. As a result, the conclusions are as follows: First, the ease of use and usefulness had significant effects on the switching barrier. Secondly, ease of use had a significant effect on the usefulness of customers, by which customers' satisfaction was influenced at low significant level. After all, the effects of ease of use and usefulness on switching barrier and satisfaction of the users of smart phones had been shown at the highest level.

• Journal of Industrial Convergence
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• v.20 no.11
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• pp.165-175
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• 2022

The purpose of this study is to understand the effect of membership type for subscription service (individual subscription vs. group subscription) on continuous intention, and to verify the mediating effect of ease of justification and the moderated mediating effect of uncertainty. An experiment was conducted on 78 university students. As a result, consumers who use subscription services in group subscription showed higher intention to continue using the subscription service than consumers who use the subscription service in individual subscription. Also, the ease of justification mediates the effect on the intention to continue using. In addition, uncertainty was found to moderating effect of ease of justification on continuous use intention according to the type of subscription. This study understands the psychological mechanism of consumers according to the type of subscription service subscription and provides useful implications for companies that provide subscription services.

• Informatization Policy
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• v.17 no.2
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• pp.68-85
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• 2010

This study extends the privacy calculus model to investigate the role of information transparency in influencing individual decision making on information disclosure. The proposed model integrates perceived usefulness and ease of use as benefit-side factors and information privacy risk as a risk-side factor accompanying information disclosure, and theorizes the effects of information transparency on the factors. The research model was tested using data gathered from 163 respondents through an online survey method. Results suggest that users'perception of information transparency not only increases the perceived benefits from the online site but also mitigates the risk related with information disclosure, resulting in higher intention to provide personal information to the site. Further, we find that online firms may improve users' perception of information transparency by providing explanation on why particular personal information is required and how it will be used.

• Journal of the Korea Convergence Society
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• v.10 no.1
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• pp.141-148
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• 2019

In this study, the Technology Acceptance Model (TAM) was applied to explore the process of using card news. Card news users are found to be active in searching and selecting appropriate news for themselves, information seeking style and news literacy were established as antecedent variables that can influence card news usage. A survey of 400 university students with experience of using card news was conducted. For statistical analysis, SEM was conducted. The analysis showed that information seeking style significantly affects perceived ease of use (PEU) and that news literacy influences neither PEU nor PU. PEU was found to have a significant effect on PU, and both PEU and PU had a significant effect on recommendation intention.

• Journal of the Korea Society of Computer and Information
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• v.13 no.7
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• pp.291-305
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• 2008

Previous study about Mobile Music Contents was mainly focused on Industry factors & enterprise factors like Technology. This study is not only focused on Technology factors, but also Customer & System factors like TAM of original, and also, this study first tried to find the Mobile Internet medium's customer purchase by each property's Mobile Music Contents from assorting the Mobile music Contents property and defining them. So to speak of this study have tried to concretely verify the factors of purchase. And also, I proposed an transformated model, and added independent variable factors, 'distinction', 'speed of system', 'speed of network', 'a career of use', 'amount of use', 'preservation', 'customization', 'information', 'confidence', 'omni presentation', 'potential possibility of reproduce'. By applying TAM this study has measured how the product property. user property, and system property causes effect to customer purchase of Mobile Music Contents. In results, First, success 8 factors were determined to be the purchase of 'Ringtone'. Second, 8 factors were determined to be the purchase of 'Ring-Back tone', but, 'The use of convenience' was not influenced 'Intention of Purchase'. Third, 6 factors were determined to be the purchase of 'Full Track Download of Music'. At the Conclusion this study presented a scheme that these study results could be applied in actual company and academic world.

• Proceedings of the Korean Information Science Society Conference
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• 2004.04a
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• pp.331-333
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• 2004

네트워크 보안의 요구 사항을 만족시키기 위한 필수적인 보안 서비스에는 인증과 권한부여가 있다. 이러한 서비스를 제공하는 보안 강화 엔진을 구현함에 있어 컴포넌트 개발방법을 이용하면 구축비용 및 시간을 절감할 수 있고 바이너리 단위로의 재사용이 가능하며 유지 보수의 용이성 및 확장성이 뛰어나다는 장점을 갖는다. 이에 본 논문에서는 컴포넌트 모델 중 마이크로소프트사의 COM(Component Object Model)을 기반으로 보안 강화 엔진을 구현하였다.

• Journal of Broadcast Engineering
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• v.20 no.1
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• pp.48-56
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• 2015

This study looks deep into how user's individual personality and his or her media experiences affect perceived usefulness and perceived ease of use about UHDTV based on Technology Acceptance Model using survey methodology. This study also focuses on how the purchase intention of terminal equipments and the willingness to pay for UHD contents will make different choices. The result of this study shows that, whether user is an exhibitionist or not or has frequently encountered a big screen, these factors affect both the perceived usefulness and the perceived ease of use about UHDTV. When user is an exhibitionist with more experience with big screens, it was clear that user tended to choose UHDTV with higher perception of usefulness and ease of use about UHDTV. This study also implies that when supplying the next generation broadcasting service, it is needed to consider the users' perceived usefulness and ease of use about UHD as well as the individuals' media experiences and characteristics.

• The Journal of the Korea Contents Association
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• v.19 no.11
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• pp.80-91
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• 2019

This study investigated the factors affecting the satisfaction and the continuous behavior intention of university students on MOOC. Adopting a questionnaire, the study collected data from 177 students enrolled in K-MOOC classes as an extracurriculum in the university in metropolitan area. Results indicated the following. First, the university students' satisfaction and continuous use intention on K-MOOC are higher during the semester than in vacation. Second, the perceived ease of use, usefulness, and task-technology fit influence the users'satisfaction on K-MOOC. Meanwhile, the perceived ease of use, task-technology, and user satisfaction likewise influence the users'continuous behavior intention. Hence, the study proposes that the subject matter on K-MOOC and the amount of educational content be made diversified, and the period of K-MOOC be made similar with that of the regular semester. The platform should also be stabilized, and the adequacy in mobile environment be improved. To further activate K-MOOC utilization in the university, the depth of contents and interaction between professors and students also need to be considered.