• Journal of Information Science Theory and Practice
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• 제10권3호
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• pp.24-39
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• 2022

Online learning is becoming ubiquitous worldwide because of its accessibility anytime and from anywhere. However, it cannot be successfully implemented without understanding constructs that may affect its adoption. Unlike previous literature, this research extends the Unified Theory of Acceptance and Use of Technology with three well-known theories, namely compatibility, online self-efficacy, and knowledge sharing and acquisition to examine online learning adoption. A total of 264 higher education students took part in this research. Partial Least Squares-Structural Equation Modeling was used to evaluate the proposed theoretical model. The findings suggested that performance expectancy and compatibility were significant predictors of behavioral intention, whereas behavioral intention, facilitating conditions, and compatibility had a significant and direct effect on online learning's actual use. The results also showed that knowledge acquisition, knowledge sharing, and online self-efficacy were determinates of performance expectancy. Finally, online self-efficacy was a predictor of effort expectancy. The proposed model achieved a high fit and explained 47.7%, 75.1%, 76.1%, and 71.8% of the variance of effort expectancy, performance expectancy, behavioral intention, and online learning actual use, respectively. This study has many theoretical and practical implications that have been discussed for further research.

• 한국IT서비스학회지
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• 제22권4호
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• pp.1-19
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• 2023

This study is a study on the effect of technical readiness factors on counselors' intention to use when applying AICC. AICC counselors experience improved customer service and emotional stability by receiving various monitor notification window services based on artificial intelligence algorithms such as customer counseling history, prohibited word control system, and customized counseling system. Accordingly, this study tried to verify using factors derived from technology readiness theory and technology acceptance theory among the factors affecting the intention to continue using AICC provided to counselors. To verify the research hypothesis, the causal relationship between variables such as Optimism, Innovativeness, Discomfort, Insecurity, and Technology Acceptance Theory, such as Team Support, Ease of Usage, and Innovation Resistance, was verified. As a result of empirical analysis, first, it was verified that Optimism has a positive (+) effect on Team Support and Ease of Usage, and Discomfort and Insecurity have a negative (-) effect on Ease of Usage and Team Support. Second, it was confirmed that Team Support and Ease of Usage had a positive effect on the Intention to use AICC. Based on the above empirical analysis results, the concepts of Technical Readiness were clearly proved, and in practical terms, AICC helped inquiry, quality evaluation, recording, and management of counseling history, ultimately increased corporate work efficiency.

• 디지털산업정보학회논문지
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• 제7권2호
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• pp.77-90
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• 2011

In these days, almost all existing contents have been digitalized because of development of IT(Information Technology) and the emergence of various distribution channels. Those digitalized Contents has increased so rapidly, particularly Video contents, and brought new market and open new business. Now it became a lucrative industry. Therefore it's necessary to study Digital contents. This study is to find out the factors which have an influence on Intention to Use and Use charged the digital contents. To carry out this study, TAM(Technology Acceptance Model), IDT(Innovation Diffusion Theory) and Use& Gratifications Theory were applied. An empirical method has been adopted, using Likert-style 7 point measurement scale, data were collected by e-mail and direct survey in Daejeon, Korea. On the collected data, after the validity test and reliability test has been taken by factor analysis and using Cronbach's alpha respectively, following 5 variables were extracted such as Perceived Usefulness, Perceived Easy Of Use, Compatibility, Intention to Use and Use.

• 한국정보시스템학회지:정보시스템연구
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• 제29권1호
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• pp.181-199
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• 2020

Purpose The purpose of this study is to analyze the current state of grounded theory methodology in Korea information systems studies and to suggest its application strategies. Design/methodology/approach After reviewing previous studies, this study reviewed 16 papers which adopted grounded theory methodology and analyzed these papers by two ways, research contents and methods adopted from grounded theory methodology: Main characteristics in grounded theory methodology are selected as main criteria in analysis such as data collection method, constant comparison, software use, coding ways, suggested model, proposition suggestion etc., while subject, theory/practice orientation, and role of prior knowledge are included in research contents. Findings Based on the review and analysis, this paper suggested four guidelines for adopting grounded theory methodology to information systems research in Korea: First, division of research methodology into stages. Second, explicit documentation of research process. Third, pursuit of diversity in research topics. Fourth, strengthening scale up and theoretical integration.

• 경영정보학연구
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• 제8권3호
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• pp.153-174
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• 2006

초기의 정보시스템 연구들은 사용자들의 정보시스템 수용(혹은 초기 사용)에 초점을 맞추었으나 최근에는 정보시스템의 장기적인 생존을 의미하는 정보시스템 사용의 지속성에 보다 높은 관심을 보이고 있다. 본 연구에서는 정보시스템 사용에 대한 사용자의 신념이 정보시스템 사용을 경험한 이후 변화된다는 기존의 연구들을 바탕으로 기술수용모형과 기대불일치이론을 결합한 모형을 제시하고, 쾌락적 정보시스템의 상황에서 지속적 사용의도에 영향을 미치는 요인을 탐색하고자 하였다. 이를 위해 쾌락적 정보시스템으로서 블로그를 직접 운영하고 있는 운영자들을 대상으로 기술수용모형의 주요 신념 변수인 지각된 유용성 및 지각된 사용 용이성과 기대불일치이론의 주요 변수인 기대불일치, 사용자 만족, 지속적 사용의도간의 영향력 관계를 분석하였다. 분석결과, 쾌락적 정보시스템에 대한 사용자 만족에 유의적인 영향을 미친 요인은 기대불일치, 지각된 유용성, 지각된 사용 용이성으로 나타났으며, 특히 기대불일치는 사용자 만족에 대한 가장 큰 영향요인인 것으로 밝혀졌다. 지속적 사용의도에 대해서는 사용자 만족과 지각된 유용성이 유의적인 영향을 미치는 것으로 나타난 반면에 지각된 사용 용이성은 지속적 사용의도에 직접적인 영향을 미치지는 않지만, 지각된 유용성과 사용자 만족을 매개로 하여 간접적인 영향을 미치는 것으로 나타났다.

• 정보화정책
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• 제21권1호
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• pp.57-76
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• 2014

본 연구의 목적은 SNS 이용의도에 대한 영향관계에서 사회적 및 개인적 선행요인들의 역할을 조명하는데 있다. 연구 목적을 달성하기 위해 계획된 행동이론(TPB)과 기술수용모델(TAM)을 통합하여 SNS 수용 모델을 제안하였다. SNS 이용의도의 개인적 선행요인으로서 사용 태도 및 지각된 행동 통제력을, 그리고 사회적 선행요인으로서 주관적 규범 및 정보 캐스케이드를 각각 설정하였다. SNS 사용 태도의 선행요인은 지각된 유용성과 지각된 사용 용이성으로 설정하였다. 제안된 모델은 국내 대학생 228명을 설문조사하여 검증하였다. 실증분석 결과를 요약하면 다음과 같다. 첫째, 사회적 압력요인으로서 주관적 규범과 정보 캐스케이드는 SNS 이용의도에 유의한 긍정적 영향을 미치는 것으로 나타났다. 특히, 정보 캐스케이드는 이용의도의 선행요인들 중에서 영향력이 가장 강한 것으로 나타났다. 둘째, 지각된 유용성과 사용 용이성은 사용 태도에 유의한 긍정적 영향을 미치는 것으로 조사되었다. 실증연구의 결과를 바탕으로 시사점 및 향후 연구방향을 제시하였다.

• Korean Journal of Mathematics
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• 제17권1호
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• pp.53-66
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• 2009

We show the existence of a nontrivial periodic solution for the superquadratic parabolic equation with Dirichlet boundary condition and periodic condition with a superquadratic nonlinear term at infinity which have continuous derivatives. We use the critical point theory on the real Hilbert space $L_2({\Omega}{\times}(0 2{\pi}))$. We also use the variational linking theorem which is a generalization of the mountain pass theorem.

• Journal of the Korean Society for Industrial and Applied Mathematics
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• 제3권1호
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• pp.81-98
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• 1999

In spite of the well developed theory and the practical use of the univariate B-spline, the theory of multivariate B-spline is very new and waits its practical use. We compare in this article the multivariate B-spline approximation with the polynomial approximation for the surface fitting. The graphical and numerical comparisons show that the multivariate B-spline approximation gives much better fitting than the polynomial one, especially for the surfaces which vary very rapidly.

• 한국지능시스템학회:학술대회논문집
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• 한국퍼지및지능시스템학회 1993년도 Fifth International Fuzzy Systems Association World Congress 93
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• pp.1066-1069
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• 1993

The presence of older installations, in particular nuclear facilities, demands extra studies concerning the safety evaluation of those installations. One of the aspects to deal with is the safety of the several transmission lines in a nuclear installation, for instance the safety of control, safety against fire, etc.. . This paper investigates the use of fuzzy set theory in the inspection of transmission lines of nuclear installations at SCK/CEN, Belgium.

• The Journal of Asian Finance, Economics and Business
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• 제7권12호
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• pp.635-645
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• 2020

This research was conducted to achieve several objectives and focus research was based on financial behavior theory and prospect theory as grounded theory e.g., investigate the financial decision-making behavior between financial and real assets investment, and confirm the relationship existing between herding behavior and overconfidence factors to the level of loss and regret aversion, and financial literacy into real assets investment decisions. The study used 220 real estate auction respondents as investor samples at the State Assets and Auction Service Office Makassar, South Sulawesi, Indonesia. Data was collected through the use of a questionnaire consisting of 23 questions to measure the variables. Moreover, the research data passed through several feasibility tests like the inner and outer modeling by Partial Least Square - Structural equation model (PLS-SEM) while the hypotheses formulated were also tested to determine the magnitude of the variable relationship. Through the use of the direct and intervening test, loss and regret aversion variables have a positive and significant effect while financial literacy variables have no significant effect. There is a slight difference in the decision-making process for real assets and financial assets investors. Investment decision making behavior in the financial assets sector requires less complicated decisions compared to the decisions related to real assets investments.