• Journal of Internet Computing and Services
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• v.18 no.6
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• pp.93-100
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• 2017

In multi-media, multi-channel era, video viewing using various digital devices via the Internet, not the existing broadcasting network, is emerging as a new broadcasting viewing behavior. OTT service is regarded as the main service of this change of viewing behavior. It is a video service that can seamlessly use any content desired by the user at any time, at any time, any device, any contents, if the Internet connection is available. The purpose of this study is to investigate the factors affecting the satisfaction of OTT service by applying the technology acceptance model (TAM). As a result of analyzing through 303 questionnaires of the early users of OTT service, social pressure, perceived popularity, perceived cost, user reputation, individual innovation, and esthetics set as external factors in this study are partially affects perceived usefulness, perceived ease of use, and perceived enjoyment. In addition, perceived usefulness, ease of use, and enjoyment are directly influencing satisfaction. Based on these results, we discuss the theoretical and practical implications and propose future research direction.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.12
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• pp.4752-4759
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• 2010

Using Technology Acceptance Model and flow theory as our foundation, this paper investigates the interrelationships among social influence, individual cognition, flow, and actual usage in the Web 2.0 environment. According to TAM, users evaluate perceived usefulness(PU) and ease of use(PEU) of information technology(IT) in accepting the innovative IT. Along with users' cognitive evaluation(i.e. PU and PEU), in case of UCC(user-created-contents), which is one of the representative Web 2.0 features, flow also has a significant effect on users' usage. Accordingly, the current study involve cognitive elements such as PU and PEU as well as flow of enjoyable state during using IT in exploring antecedents leading to UCC usage. On one hand, we consider the effect of social influence on users' cognition and flow toward actual usage because the more users creates Web contents, the more long-tail situation prevails on the Internet. Web 2.0 becomes a kind of social phenomena. The empirical results show that social influence affects positively both PU/PEU and flow. Users' cognitive evaluation and flow have positive impacts on users' UCC usage.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.15 no.3
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• pp.191-199
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• 2015

The purposes of this study are to examine the predictability of variables related to SNS intention to use in collaborative learning and provide some new implications. Based on Technology Readiness and Acceptance Model (TRAM), we hypothesized that optimism, innovativeness, discomfort, insecurity as personal disposition variables, subjective norm as a social variable, and perceived usefulness and perceived ease of use as cognitive variables would predict SNS intention to use. For this study, 274 'Share Leadership' students in E university completed surveys and it was analyzed by multiple regression analysis. The results of this study showed as follows. First, optimism, innovativeness, discomfort, and subjective norm predicted perceived ease of use. Second, optimism, insecurity, subjective norm and perceived ease of use predicted perceived usefulness. Third, subjective norm, perceived ease of use and perceived usefulness predicted SNS intention to use. From this, it is revealed that positive technology readiness predict much more than negative technology readiness do and the role of teacher and peers is very important.

• Journal of Digital Convergence
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• v.15 no.7
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• pp.359-365
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• 2017

This study was conducted structural model analysis focusing on the factors influencing UHDTV service usage. The perceived quality, innovativeness, price sensitivity are adopted as independent variables and perceived usefulness, perceived easy use are adopted as intervening variables. Especially symbolism used it as a control variable. As a result of the analysis by PLS, the influence coefficient of perceived quality was significantly higher than other variables. However, the combined effect of symbolism and perceived quality has a negative effect on perceived usefulness, and the more the users consider the symbolism of UHDTV usage, the more negative the evaluation of UHD quality and usefulness. With the launch of the terrestrial UHDTV service in May 2017, the most important issue is the production and distribution of high-quality content that users want.

• Journal of Digital Contents Society
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• v.16 no.5
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• pp.749-756
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• 2015

This study focused on smartphone adoption of foreign students who are studying in Korea in digital media era. Smartphone is not only new media but also social media. Based on former research, factor for smartphone adoption of foreign students will be analyzed. Based on TAM theory technological attribute, individual attribute and social attribute were taken out as independent variables. Perceived ease of use and perceived usefulness are applied as mediator variables. In conclusion, some hypotheses for example service quality and individual attribute are rejected as variables which influence positively to mediator variable perceived easy of use. For the next research more various variables and nationwide sampling will be needed.

• The Research Journal of the Costume Culture
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• v.20 no.4
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• pp.573-593
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• 2012

The purpose of this study was to investigate consumers' buying intention toward fashion goods through global internet shopping malls. This research employed Technology Acceptance Model (TAM) as a theoretical framework and was extended to introduce fashion innovativeness, clothing involvement, consumers' needs for uniqueness, computer self-efficacy as external factors. A total of 381 copies of questionnaires were collected online. The subjects of this study were women. The collected date were analysed by factor analysis, Cronbach's alpha, correlation and path analysis. The results indicated that fashion innovativeness, clothing involvement and consumers' needs for uniqueness had a significant positive affect on perceived usefulness. Consumers' needs for uniqueness and computer self-efficacy had a significant positive affect on perceived ease of use. Perceived usefulness and perceived ease of use were found to influence buying intention toward fashion goods through global internet shopping malls. The results of this study also suggested that perceived ease of use was actually a causal antecedent to perceived usefulness. This study reveled that employing TAM to investigate the buying intention toward fashion goods through global internet shopping malls was appropriate. This study also provides empirical analysis that can serve as a guide for marketers of the fashion industry in activating global internet shopping malls.

• Information and Communications Magazine
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• v.33 no.1
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• pp.42-47
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• 2015

본고에서는 개인 또는 기업이 아이디어를 제품화하는 과정에서 겪게 되는 생산진입의 어려움을 해소하기 위해서 개인맞춤생산을 지원하는 개방형 제조서비스 플랫폼 (FaaS: Factory as a Service)을 제안한다. FaaS 플랫폼은 다양한 고객들의 맞춤형 제품에 대한 요구를 수용하여 가능한 대량 생산에 가까운 효율로 생산하도록 설계하였으며, 개인맞춤생산을 위한 스마트 제조기술과 제조서비스 플랫폼 기능을 제공한다. FaaS 플랫폼은 고객이 자신이 원하는 제품생산의 요구를 정확하게 지속적으로 전달하기 위해 개방성을 제공하는 FaaS 클라우드 계층과 다양한 이종 제품들을 최적의 생산 효율을 가지고 혼류생산 할 수 있도록 하는 FaaS 제조운영 계층, 그리고 3D프린터, 로봇과 같은 혁신형의 제조설비들을 IoT(Internet of Things)를 기반으로 유기적으로 연결함으로써 팩토리 전체 성능을 향상시키도록 하는 FaaS 실행제어 계층으로 구성된다. 본 고에서 제안한 FaaS 플랫폼은 향후 기술개발 결과물을 실 수요 제품을 생산하는 ICT융합형 제조서비스 스마트팩토리 실증테스트베드에 적용하여 시범운영을 통해 기술을 검증하고 확장할 계획으로 있으며, 이를 통해 창업 기업이나 중소 제조기업들이 신제품의 시장진입시간을 단축시키고, 실질적인 펀딩 효과를 가질 수 있기를 기대한다.

• Journal of the korean veterinary medical association
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• v.48 no.3
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• pp.177-191
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• 2012

2011년도 Nobel 생리(生理) 의학상(醫學賞) : 자연(自然)(선천)(先天) 면역(免疫)(innate immunity)의 활성화에 관한 연구업적으로 B. A. Beutler와 J. A. Hoffmann, 그리고 수지상세포(樹枝狀細胞)(dendritic cell; DC)발견과 적응(適應)(획득)(獲得)면역(免疫)(adaptive immunity)에 있어서의 그들 세포의 역할을 밝혀낸 R. M. Steinman의 공동수상으로 금년도 Nobel 생리 의학상 수상자가 결정되었다는 보도가 지난 10월 3일 있었다(1-3). 그들의 업적을 요약하면 대략 다음과 같다. (Steinman교수는 Nobel수상자 발표 3일전인 9월 30일 암으로 사망함). 그들은 면역기구(immune system)의 활성화의 관건(key)이 되는 원리를 밝혀냄으로써, 면역기구에 관한 우리들의 이해를 혁신하였던 것이다. 과학자들은 오랫동안 세균(bacteria)이나 기타 미생물병원체들에 의한 공격에 대비하여 그들 자신을 방어하는 사람이나 기타 동물체에서의 면역응답(免疫應答)(immune response)의 문지기들을 탐색해 왔다. Beutler와 Hoffmann은 그와 같은 병원미생물을 인식하여 생체의 면역응답의 첫 단계인 자연면역을 활성화 할 수 있는 수용체 단백질(toll-like receptor protein)을 규명한 것이다(4,5). 한편 Steinmann은 면역계의 수지상세포(DC)와 병원미생물이 생체로부터 배제되는 면역응답의 후기단계인 적응면역을 활성화하고 조절하는 그들의 독특한 재능을 규명해 낸 것이다(6-8). 그들 3명의 발명은, 면역응답의 자연 및 적응 양상(樣相)이 어떻게 활성화되는 가를 밝혀냄으로써 질병의 기전에 관한 참신한 식견(識見)을 제공한 것이다. 그들의 연구는 감염병(感染病)(infectious disease), 암(癌)(cancer) 그리고 염증성질환(炎症性疾患)(inflammatory disease)에 대응하는 예방과 치료의 개발을 위한 새로운 방법을 개척한 것이다.

• Journal of the Korean Society for Library and Information Science
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• v.30 no.4
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• pp.85-104
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• 1996

The purpose of this study is to analyze the edition of 21 of the Dewey Decimal Classificatin. Edition 21 includes major revisions of three schedules : 350-354 Public administration, 370 Education, and 560-590 Life sciences. The aim of Edition 21 was user convenience, Regularization, Faceting, Terminology, International needs and Cooperative development and Changes in the database. The Dewey Decimal Classification is preparing for the future in a number of ways. Editorial work is supported by a UNIX-based system and access to online bibliographic databases. Two edition of Electronic Dewey have been published and a Windows version have been published.

• THE INTERNATIONAL COMMERCE & LAW REVIEW
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• v.53
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• pp.233-264
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• 2012

This study proposes and verifies an integrated model that reflects and helps to explain complexities and comprehensiveness of e-Trade in practice. The primary objective was to widen and deepen our understanding about the phenomena of paperless trading which will enable us to formulate an effective means to promote the adoption and utilization of e-Trade infrastructure. This investigation combined and extended the theories and models of TAM, TOE framework, and TTF in order to identify and hypothesize the causal relationships between factors of technology, organization and environment, and the usage level and performance of e-Trade. The previous research on e-Trade was reviewed and incorporated into the extended model. The integrated model was tested based on the survey data collected from a sample of 417 trading firms. Overall, the regression and path analysis demonstrated the usefulness of the proposed model as a conceptual framework for better understanding and explanation of e-Trade. The result of the analysis implies the relevancy of the factors of technology, organization and environment for facilitating usage of and increasing performance of e-Trade. However, rejection of a few hypothesized relationships implies the necessity of extensive promotion and education about the related laws and regulations, and education, supervision and incentives for e-Trade practitioners.