• Journal of Digital Convergence
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• v.8 no.3
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• pp.115-127
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• 2010

This study investigates the effect of E-learning service quality toward users' learning satisfactions when moderating by users' study motivations at cyber universities. For this end, the E-learning service quality was measured with SERVQUAL which was widely employed in academic research area. From rich survey analysis, this study finds that the three factors of E-learning service quality such as concreteness, certainty, credibility and sympathy are statistically correlated with users' learning satisfactions, but the responsiveness is not. Also in order to test the hypothesis that the study motivation is a moderate variable, the three step regression analysis was applied. Finally, this research finds that the study motivation has the role of moderate variable to affect the users' learning satisfactions.

• Proceedings of the Korea Society for Industrial Systems Conference
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• 2006.05a
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• pp.151-164
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• 2006

최근 e-러닝의 확산 속도에 따른 많은 문제점도 발생되고 있으며 그중 가장 큰 이슈가 e-러닝 사이트에 대한 평가인데 즉, 제공하는 사이트의 서비스품질이 사용자들에게 얼마만큼의 성과를 통한 만족을 가져다 줄 수 있는지에 대한 문제이다. 이에 본 연구에서는 e-러닝의 사업 분류 중 일반인과 학생을 교육대상으로 하는 B2C e-러닝 사이트의 서비스품질 결정요인이 개인성과, 사용자만족, 재이용의향 등에 어떠한 영향을 미치는 지를 분석하고자 한다. 이러한 연구목적에 따른 결과를 토대로 e-러닝 사이트의 벤더가 사용자들에게 고품질의 서비스를 제공하기 위해 최우선적으로 고려해야 할 요인들과 전략적 시사점을 제시하여 실제적인 e-러닝의 활성화에 기여하고자 한다.

• Journal of Korea Society of Industrial Information Systems
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• v.11 no.5
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• pp.245-260
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• 2006

The e-learning market in korea has been growing rapidly over the past several years. We selects the variables well matched to service quality of e-learning site on the basis of independent variables of this study, sets the models as adding the factors newly noticed such as convenience of site use in e-learning. We also see the significance of the relationships between service quality of e-learning site, personal performance, customer satisfaction and customer's reuse intention.

• Proceedings of the Korean Information Science Society Conference
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• 2011.06d
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• pp.234-237
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• 2011

최근 인터넷을 통한 멀티미디어 스트리밍 서비스 이용이 증가함에 따라 스트리밍 서비스 품질을 향상 시키기 위한 연구들이 진행되고 있다. 하지만 기존 연구들은 네트워크 상태에 적응적으로 전송률을 조절함으로써 네트워크의 효율성 및 안전성을 개선하는데 초점을 맞추고 있어서 사용자 측면의 체감품질에 대한 고려가 부족하다. 본 논문에서는 멀티미디어 스트리밍 서비스의 사용자 체감품질 (QoE)을 향상시키기 위한 적응적인 전송률 및 비디오 품질 조절 기법을 제안한다. 제안하는 기법은 네트워크의 가용대역폭과 클라이언트의 버퍼 상태를 기반으로 전송률 및 비디오 품질을 조절함으로써 멀티미디어 재생의 불연속성과 잦은 비디오 품질 변화에 의한 사용자 체감품질을 개선하였다. 시험 결과를 통해서 제안하는 기법이 부드럽게 (Smoothly) 비디오 품질을 조절하는 것을 보였다.

• Journal of Internet Computing and Services
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• v.5 no.6
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• pp.31-43
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• 2004

Voice over Internet Protocol (VoIP) is currently a popular research topic as a real time voice packet transmission method. But current Internet environment do not guarantee the quality of voice when we take a side view of delay, jitter and loss. Up to now, many voice based evaluation algorithms have been used to measure speech quality of VoIP systems. However, these algorithms have the defects that their results are different according to voice samples and some algorithms can not take network environment for speech transmission path. The E-model can be used to solve the problems of these algorithms. In this paper. we introduce VoIP planning guidelines through the various analysis of E-model which can model impairments of network quality as well as VoIP equipment quality systematically, We, also, show the evaluation method and results of speech transmission quality.

• Journal of Digital Convergence
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• v.18 no.1
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• pp.369-377
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• 2020

The purpose of this study is to find out the effect of e-learning quality and learner's usage motivation on e-learning satisfaction in Korea and China. In addition, by comparing and analyzing the factors influencing the satisfaction of learners between the two countries, this study aims to suggest the effective use of e-learning. This study surveyed Korean university students at Y and K universities in Gyeongsangbuk-do and Chinese university students at A university in Henan, China. As a result, for Korean university students, it is showed that learning time, learning space, learning process, usefulness, e-learning information quality, and service quality affect e-learning satisfaction. For Chinese university students, learning time, learning process and e-learning system quality, information quality, and service quality were found to affect e-learning satisfaction. Among them, service quality was an important factor influencing e-learning satisfaction in both countries, but the average score of each factor was very low. In the future, we discussed ways to improve service quality.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.4
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• pp.1609-1618
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• 2012

We can easily acknowledge the facts that the e-market is increasingly and quickly changed by the smart phone user's. This research focuses the e-service quality and relationship between the e-service quality, customer satisfaction and behavioral intention in the AppShopping Mall. Based on the documentary research, the empirical study was followed by the questionnaire. The 313 usable questionnaires were collected by a self-administered survey. The results reveal that the e-service quality determinants are factors including customer service, app design, security, connectivity and user's convenience, and that the e-service quality is directly or indirectly related to customer satisfaction and behavioral intention. The AppShopping mall managers have to try on their best to find out the customer's needs, manage the lists of the e-service quality and develop the app.

• 한국디지털정책학회:학술대회논문집
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• 2006.12a
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• pp.421-431
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• 2006

지식정보사회의 핵심 키워드인 e-learning은 많은 발전을 하고 있다. e-learning은 오프라인 교육에 비해 시간과 공간의 제약을 받지 아니하고, 비용이 저렴하며 반복 학습과 개인화된 서비스가 가능하다는 장점이 있는 반면에 아직도 파급 효과는 크지 못한 실정이다. 또한 국가적인 차원에서 많은 지원을 하고 있고 시장의 급속한 성장과 확산에 비해, 중${\cdot}$고생들을 대상으로 하는 e-learning사이트의 컨텐츠 품질에 대한 연구는 미비한 실정이다. 이에 본 연구에서는 중${\cdot}$고생 시절에e-learning의 경험이 있는 대학생들을 중심으로 실증연구를 수행하였다.

• Journal of Korea Society of Industrial Information Systems
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• v.23 no.6
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• pp.113-123
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• 2018

There are no studies related to the cryptocurrency exchange, unlike the explosive topic and the active transaction of the cryptourrency around the world. In this study, variables were constructed based on the previous researches to examine the effects of e-service qualities(information quality, transaction quality, design quality, safety quality), satisfaction and continuance intention of cryptocurrency exchange. The samples consist of 180 survey data drawn from the users of cryptocurrency exchange. The collected data were analyzed by SPSS 24.0 and AMOS 21.0. According to results of the reliability and validity test, all were found reliable, and all items were included. As a result of hypothesis testing through path analysis, First, the e-service qualities (information quality, transaction quality, design quality, safety quality) of the cryptocurrency exchange showed positive effects on satisfaction at the significance level of 1% and 5%. Second, e-service qualities (information quality, transaction quality, design quality, safety quality) of the cryptocurrency exchange were found to have positive effects on continuance intention at the significance level of 1% and 5%. Third, the satisfaction of the cryptocurrency exchange has a positive effect on continuance intention at 1% level of significance.

• Journal of the Korean Applied Science and Technology
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• v.38 no.3
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• pp.689-699
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• 2021

The spread of the COVID-19 pandemic has been increasing non-face-to-face activities; as a result, this has resulted in the number of individuals obtaining medical information from the websites and mobile contents of medical institutions increasing. The study conducted the structural equation modeling to test hypotheses; as a result, all sub-factors of e-service quality of small medical clinic websites and mobile contents, usability, security, responsiveness, design, and information, had a significant positive effect on relationship quality, and relationship quality had a significant positive effect on e-Loyalty. Moreover, the structural equation model showed a good model fit, χ²/df of 2.021, NFI of .954, TLI of .969, CFI of .976, RMSEA of .046. Future research is suggested to study relationship quality by developing a system able to quickly and accurately respond to websites and mobile contents users; furthermore, improving e-service quality and relationship quality is likely to strengthen e-loyalty.