• 한국정보시스템학회지:정보시스템연구
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• 제15권4호
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• pp.73-98
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• 2006

The purpose of this study was to verify and analyze the factors that influence the acceptance intention of u-Commerce users under ubiquitous computing environments. To accomplish this, the Technology Acceptance Model(TAM) of Davis(1989), which has widely been cited in new technologies such as information technology(IT) and information systems(IS) studies was used to develop the research model. First of all, personal characteristics affecting the acceptance intention of u-Commerce were identified as individual variables through literature review. Utilizing the use of the individual variables and the TAM model, the u-Commerce acceptance intention model was established. The research findings indicated that IT acceptance forms and frequencies in IT use did not have a significant impact on perceived usefulness and perceived ease of use of u-Commerce. It was also found that the perceived usefulness proposed in the u-Commerce acceptance model influenced the perceived usefulness. Both ease of use and usefulness were identified to influence attitude for use. Finally, usefulness and attitude for use also positively influenced acceptance intention. The contribution of this study was the examination of the factors affecting acceptance intention of users in u-Commerce and the verification of the usefulness of the TAM model in describing the acceptance of u-Commerce users using structure acceptance model. Furthermore, this study has empirically analyzed how personal characteristics widely used in the study of acceptance of IT can influence the acceptance of u-Commerce.

• 디지털산업정보학회논문지
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• 제17권4호
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• pp.209-229
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• 2021

Recently, the tourism industry faced a crisis due to COVID-19. Smart tourism that combines information and communication technology (ICT) is rapidly growing to overcome the crisis in the tourism industry. In order to revitalize the tourism industry after COVID-19, such as non-face-to-face and non-contact, smart tourism incorporating information and communication technology (ICT) is actively encouraged and promoted. The purpose of this study is to empirically verify how perceived pleasure, perceived awakening, and perceived domination, which are three important variables of emotional response theory, affect the intention to continue use through perceived usefulness, expectation, and satisfaction. The survey was conducted for two weeks from November 1 to 15, 2020. A total of 175 surveys were collected during the period and used for analysis. As a result of the study, first, perceived pleasure did not significantly affect perceived usefulness, expectation, satisfaction, and intention to continue use. Second, perceived awakening had a significant effect on expectations, but did not significantly affect perceived usefulness, satisfaction, and continued use intention. Third, perceived domination had a significant effect on perceived usefulness, expectation, and continued use intention. However, it did not significantly affect satisfaction. Fourth, perceived usefulness did not significantly affect satisfaction. Fifth, expectations had a significant effect on perceived usefulness and satisfaction. Sixth, satisfaction had a significant effect on the intention to continue use. Through this, companies and developers that provide online review content for aviation and hotels should know what part of the content is actually focused on and provide it to customers. In addition, content should be provided in consideration of the emotional aspects that aviation and hotel online review users feel while watching videos.

• 한국조리학회지
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• 제21권2호
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• pp.171-186
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• 2015

본 연구는 모바일 베이커리 어플리케이션에 대한 혁신성, 정보의존성, 정보제공 충분성 및 리뷰 신뢰성이 지각된 유용성과 지각된 용이성 그리고 최종적으로 지속적 이용에 미치는 영향관계를 검증하여 베이커리산업에 유용한 정보를 제시하고자 하였다. 자료 수집은 2014년 9월 1일부터 30일까지 실시하였으며, 설문지는 총 500부를 배포하여 455부를 회수하였고, 이 중 통계분석이 가능한 441부에 대하여 SPSS 18.0과 AMOS 18.0을 이용하여 요인분석과 신뢰성 검증을 실시하고, 제시된 연구가설을 검증하기 위해서 공분산 구조분석을 실시하였다. 분석결과, 첫째, 혁신성은 지각된 유용성과 지각된 용이성에 유의적인 영향을 미치는 것으로 나타났다. 둘째, 정보의존성은 지각된 유용성과 지각된 용이성에 유의적인 영향을 미치는 것으로 나타났다. 셋째, 정보제공 충분성은 지각된 유용성과 지각된 용이성에 유의적인 영향을 미치는 것으로 나타났다. 넷째, 리뷰신뢰성은 지각된 유용성과 지각된 용이성에 유의적인 영향을 미치는 것으로 나타났다. 다섯째, 지각된 용이성은 지각된 유용성에 유의적인 영향을 미치는 것으로 분석되었다. 마지막으로 지각된 유용성과 지각된 용이성은 모바일 베이커리 어플리케이션의 지속적 이용에 유의적인 영향을 미치는 것으로 분석되었다.

• 한국정보시스템학회지:정보시스템연구
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• 제19권3호
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• pp.209-236
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• 2010

Recently, utilization of mobile Internet services is rapidly increasing. To properly accelerate the vitalization of mobile Internet usage, we have to know exactly about the factors affecting potential users' value recognition and intention to use. Technology acceptance model (TAM) is one of the most powerful reference framework for the individual user's adoption of IT innovations. This research borrowed core concept of TAM, and tried to explain users' intention to use mobile Internet by understanding the direct and indirect effects of subjective norm and perceived usefulness. To increase the explanatory power of the model, this paper introduced personal innovativeness as a key moderator variable. The research findings include; i) subjective norm has strong positive influence on perceived usefulness and intention to use, ii) perceived usefulness has positive influence on intention to use, iii) the influence of subject norm is greater than that of perceived usefulness, iv) positive influence of subjective norm on the perceived usefulness and intention to use are significantly stronger in the case of low personal innovativeness sub-group than the case of high personal innovativeness sub-group, and v) high personal innovativeness sub-group have shown strongly positive influence of perceived usefulness on the intention to use while there is no such significant relationship in the case of low personal innovativeness sub-group. Based on these findings, this paper proposed several guidelines to increase the adoption and the usage of mobile Internet; i) word-of-mouth is extremely important, ii) to form a good word-of-mouth, it will be very important to make early adopters and heavy users have positive direct experiences of using mobile Internet.

• 경영과정보연구
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• 제21권
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• pp.131-154
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• 2007

The purpose of this study is to understand a information technology acceptance model and to test empirically using field survey. In order to achieve this purpose, first of all, I examined literature reviews about the theory of reasoned action(TRA), the theory of planned behavior(TPB), and the theories of technology acceptance model(TAM). Based on literature reviews, I proposed a technology acceptance model and empirically verified it through using field survey. As a result of, this study was designed to predict and to explain the factors of affecting reuses of a website. The data that were surveyed 193 users of internet were analyzed with SPSS 12.0 and AMOS 4.0. The major results of this study as follows : First, the perceived complexity is influenced by the skill & experience and the quality of system. Second, the quality of system affects the perceived usefulness. Third, the perceived complexity affects the perceived usefulness and the perceived playfulness. Fourth, reuses of a web site are influenced by the perceived usefulness and the perceived playfulness. Finally, the quality of system affects the perceived usefulness and the skill & experience affect the perceived playfulness.

• 한국IT서비스학회지
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• 제12권1호
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• pp.33-50
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• 2013

As having analyzed an advance research that had looked into how characteristics of information system affect use and success of the concerned system, the study determined that system quality, information quality and service quality are the fundamental requirements for a good accounting information system. In addition, based on perceived usefulness and perceived ease of use that have been selected as major variables related to information system acceptance proposed by Davis[10], the study conducted an empirical analysis on how such factors would influence performance of the accounting information system. According to the results from the analysis, the system quality one of the characteristics of the accounting information system was observed to have a significant influence on the perceived ease of use while both the information quality and the service quality would positively affect the perceived usefulness. Not only that, the perceived ease of use and the perceived usefulness were confirmed to be a significant factor to the performance, and with those results, all the theses of the study have been selected. As proved even with the information system success model, the system quality, the information quality and the service quality are definitely the most necessary elements for business management, and it also turned out that those elements would play an important role in several stages of the information system.

• 한국산업정보학회논문지
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• 제16권5호
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• pp.151-161
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• 2011

SNS는 인터넷 상에서 공통의 관심사를 지니고 있는 사용자들 간의 관계형성을 지원하고, 이렇게 형성된 지인관계를 바탕으로 인맥관리, 정보 및 컨텐츠 공유 등 다양한 활동을 할 수 있도록 지원하는 서비스를 말한다. 본 연구의 목적은 SNS에서 지속적인 사용 의도에 영향을 미치는 요인을 파악하는 것이다. 이를 위해 정보시스템 사후-수용 모델과 성공모델을 이용하여 연구 모형을 설정하여 275명의 대학생들을 대상으로 실증분석하였다. 그 결과는 첫째, 만족과 인지된 유용성이 지속적 사용 의도에 정(+)의 영향을 미치는 것으로 나타났다. 둘째, 기대일치, 시스템 품질, 정보 품질, 인지된 유용성은 만족에 정(+)의 영향을 미치는 것으로 나타났다. 셋째, 기대일치는 인지된 유용성에 정(+)의 영향을 미치는 것으로 나타났다. 넷째, 시스템 품질과 정보 품질은 기대일치에 정(+)의 영향을 미치는 것으로 나타났다. 마지막으로, 지속적 사용 의도에 가장 큰 영향을 미치는 요인은 만족으로 나타났고, 만족에 가장 큰 영향을 미치는 것은 인지된 유용성이었다.

• 한국정보시스템학회지:정보시스템연구
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• 제10권1호
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• pp.279-301
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• 2001

This study was examined empirically the relationship between exogenous and endogenous variables to use internet shopping malls. Exogenous variables in our model are retrieval simpleness, quality of order treatment, web reputation, update and system quality and endogenous variables are perceived usefulness, perceived ease of use and intention of using internet shopping malls. The results of the path analysis are shown as follows. All exogenous variables have a direct effect on perceived ease of use while both retrieval simpleness and update has a direct effect on perceived usefulness. The perceived ease of use has a direct effect on the intention of using internet shopping malls and has a indirect effect on the intention through perceived usefulness. Especially, web reputation among the exogenous variables has the strongest impact on the perceived ease of use and retrieval has the strongest impact on the perceived usefulness.

• International Journal of Contents
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• 제16권1호
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• pp.65-74
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• 2020

The purpose of the study was to explore the structural relationships between the intent to continue using Massive Open Online Courses (MOOCs) and its determinants based on the information systems continuance expectation-confirmation model. A total of 156 students from five different universities in Korea completed an online survey. An analysis by structural equation modeling revealed that college students' intent to continue using K-MOOC is partially supported by the model. Although perceived usefulness and confirmation are strong determinants of satisfaction and intent to continue using information systems in general, confirmation was the only significant predictor of satisfaction, the only significant predictor of intent to continue to use K-MOOC. Written responses on the survey were used to interpret the results. Findings indicate significant effects of confirmation on perceived usefulness, of confirmation on satisfaction, and of satisfaction on intent and insignificant effects of perceived usefulness on satisfaction and perceived usefulness on intent to continue. Substantial implications for future research and practices are discussed.

• 한국IT서비스학회지
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• 제14권4호
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• pp.159-169
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• 2015

Customer reviews are one of the important sources for purchase decision makings in online stores. Online stores have tried to provide useful reviews in product pages to customers. To assess the usefulness of customer reviews before other users have voted enough on the reviews, diverse aspects of reviews were utilized in prevous studies. Style and semantic information were utilized in many studies. This study aims to test diverse alogrithms and datasets for identifying a proper classification method and threshold to classify useful reviews. In particular, most researches utilized ratio type helpfulness index as Amazon.com used. However, there is another type of usefulness index utilized in TripAdviser.com or Yelp.com, count type helpfulness index. There was no proper threshold to classify useful reviews yet for count type helpfulness index. This study used reivews and their usefulness votes on restaurnats from Yelp.com to devise diverse datasets and applied text mining approaches to classify useful reviews. Random Forest, SVM, and GLMNET showed the greater values of accuracy than other approaches.