• Journal of Digital Convergence
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• v.15 no.5
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• pp.99-106
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• 2017

The purpose of this study is to analyze the relationship between tourist 's intention to use smartphone and the preceding factors through the questionnaire. For achieving this research purpose, this study surveyed the tourists who use smartphone to investigate the influence of interactivity such as two-way communication and synchronicity as hypotheses on the influence of flow, and the effect of attitude factors on continuous intention to use was analyzed by research model. In this study, a partial least squares based structural equation (PLS-SEM) method was applied to verify the hypothesis of the proposed research model. Finally, the validity of the proposed research model was confirmed through confirmatory factor analysis and hypothesis testing. Therefore, the results of this study show that interactivity and flow are influential for the reuse of users in utilizing information by using smartphone, and it affects the attitude of users in developing smart tourism system in the future. The results of this study can be utilized as basic data related to the acquisition of information by smartphone of tourists in the future development of smart tourism system.

• Journal of the Korean GEO-environmental Society
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• v.11 no.6
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• pp.69-75
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• 2010

Total suspendid solid (TSS) of non point source pollutants in construction site are in higher concentration than others (BOD, COD etc). Also, the TSS concentration is very sensitive to the rainfall intensity in early stage of construction. There are two methods for treatment of non point source pollutants, which are temporary treatment facility and filtering one. But they have disadvantages. Temporary facility system has very low efficiency and filtering system consumes high energy and takes up large footprint. This study shows how prefabricated flocculation/coagulation system is developped to cover the above weakness and evaluation of the system performance in construction site. The prefabricated flocculation/coagulation system has very high treatment efficiency comparing with temporary and filtering system and takes small footprint. Therefore, it expects that the system leads to prevention of pollution near construction site and reduction of public grievance. Proper coagulant dosage and sludge circulation facility application, controlling the height of sludge interfacial are necessary to maximize the system efficiency.

• The Journal of the Korea Contents Association
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• v.20 no.12
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• pp.492-497
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• 2020

Today, banks around the world are making great efforts to adapt to the rapidly changing internal and external environment changes caused by the development of IT technology and to gain a competitive advantage in the market. In particular, in line with the rapid growth of smartphone usage, financial services are also provided in a variety of ways using Fintech, and one of the fastest growing areas is mobile simple payment. Mobile payment service is a financial service that pays the purchase price using a portable mobile device. As fintech, a convergence of financial services and information technology, it is recently used not only in financial services, but also in various industries. It is used in all fields where payment functions such as distribution are available. In the case of mobile cards, it shows that the usage rate of people in their 20s and 30s is increasing very much, so it can be said that the use of mobile payment services will continue to increase in the coming future. We know that simple payments are being used. However, it can be said that the research on the use of mobile payment services by these teenagers is somewhat incomplete. Therefore, this study investigated what factors are important for Korean teenagers to use mobile payment services. As a result, among the five hypotheses presented in this study, all hypotheses were adopted except for , which states that cash usage habits have no effect on innovation.

• Journal of the Korea Society of Computer and Information
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• v.19 no.3
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• pp.87-100
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• 2014

This study was conducted to investigate the impact of information technology resources and quality of information in logistics information system on logistics performance of logistics companies. The questionnaire targets IT manager of logistics companies. In the questionnaire survey for empirical analysis, we conducted a survey and used 125 responses for statistical analysis to validate hypotheses. The results from the empirical model suggest that quality of information in logistics information system tend to be influence by IT resource. And firm's logistics performance is effected by the usefulness of quality of information in logistics information system.

• Journal of the Korean Society for Library and Information Science
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• v.32 no.3
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• pp.231-250
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• 1998

The purpose of this study was to investigate factors affecting work performance among systems librarians in Korean academic libraries. The factors were divided in three categories: Job characteristics, organizational characteristics, and individual characteristics. Data from questionnaire were analyzed using the SPSS for windows. Multiple regression analyses were performed on three sets of variables related to the hypotheses of the study. The result of the analysis Identified the folowing factors : Job characteristics which affect work performance among systems librarians in academic library are autonomy, task significance, skill variety, and feedback from supervision. Organizational characteristics which affect work performance are job security, capability of automation systems, coworkers. Individual characteristics which affect work performance are growth need strength, knowledge, and systems librarian experience.

• Proceedings of the Korea Association of Information Systems Conference
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• 2003.11a
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• pp.305-316
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• 2003

오늘날 e-비즈니스의 주요 동인이라 할 수 있는 인터넷은 우리의 일상생활뿐만 아니라 상거래의 형태도 변화시키고 있다. 특히 전자상거래는 시간적 공간적 제약을 극복하고 편리하게 거래를 할 수 있다는 이점으로 그 시장이 급격히 성장하고 있다. 이렇게 기업의 환경을 급변시키며 새로운 시장을 형성하고 있는 인터넷의 활용분야는 매우 다양하다. 특히 대기업과 비교하여 상대적으로 인력과 자본이 부족한 중소기업에서는 전자상거래를 판로개척, 판매, 광고, 기업 홍보, 고객에 대한 서비스 등 기업의 다양한 프로세스 도구로 활용할 수 있다. 중소기업에서 성공적인 전자상거래를 실현하기 위해서는 무엇보다도 전자상거래의 관문이라 할 수 있는 웹사이트의 개발에 크게 심혈을 기울여야 할 것이다. 이에 본 연구에서는 전자상거래의 관문이라 할 수 있는 중소기업의 웹사이트 개발에 영향을 미치는 조직의 내${\cdot}$외적 요인이 무엇인지를 밝혀내고, 조직의 웹사이트를 개발 수준에 따라 분류하여 현재 중소기업의 웹사이트 개발의 수준을 알아본다. 그리고 조직의 웹사이트 개랄 수준을 향상시키기 위해 고려해야 할 요인들이 무엇인지 살펴본다. 본 연구의 구성은 I장에서는 연구의 필요성을 제시하고, II장에서는 관련 논문들의 고찰을 통해 웹사이트 개발 수준에 영향을 미치는 요인들을 탐색해본다. III장에서는 연구모형과 가설을 제시하고, IV장에서는 이를 토대로 실증분석을 한다 마지막으로 V장에서 본 논문의 결론을 맺는다.

• Proceedings of the Korea Association of Information Systems Conference
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• 2000.05a
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• pp.99-105
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• 2000

현재 전자상거래는 하루가 다르게 발전하여 무한한 발전의 기회를 제공하고 있다. 그리하여 본 연구에서는 인터넷 비즈니스를 수행하여 성공한 해외 인터넷 비즈니스 사이트들을 쇼핑몰, 포탈, 커뮤니티/채팅, 경매, 게임, 자동차, 음악, 금융, 서적, 여행/티켓, 의류, 음식료, 잡화, 택배로 분류하여 32개 해외성공사이트의 분석을 통하여 주요성공요인을 도출하여 이를 국내 우수한 사이버 쇼핑몰로 선정된 삼성몰, 인터파크, 한솔CS, 롯데인터넷에 적용하여 10개의 주요성공요인을 제품, 고객, 서비스, 컨텐츠, 프로세스, 커뮤니티, 정보, 마케팅, 사이버몰, 가격의 대분류를 기반으로 하여 35개의 소분류로 다시 분석해 내었다. 그리하여 이를 기반으로 이론적 연구모형과 가설을 제시하고 추후 실증분석을 위한 토대를 마련하고자 한다.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 2005.11a
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• pp.205-208
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• 2005

We have fuzzy hypotheses testing from Bayesian statistics with ideas from fuzzy sets theory to generalize Bayesian methods both for samples of fuzzy data and for prior distributions with non-precise parameters. Appling the principle of agreement index, the posterior odds ratio in the favor of hypotheses $H_0$ is equal to product of the fuzzy odds ratio and the fuzzy likelihood ratio. If the Posterior odds ratio exceeds the grade judgement, we accept the hypothesis $H_0$ for the degree.

• 한국HCI학회:학술대회논문집
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• 2009.02a
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• pp.868-875
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• 2009

최근 페이스북 (Facebook), 유투브 (YouTube) 등과 같은 소셜 미디어 서비스가 인기를 얻고 있다. 그러나 기존의 사용자 경험에 대한 이론으로는 사용자간 상호작용에 중점을 둔 소셜 미디어 상의 사용자 경험을 충분히 설명하기에 부족한 면이 있다. 본 연구에서는 경험에 대한 철학적인 고찰을 통해 기존 사용자 경험 개념을 보완하는 개념인 공동경험을 재정의하였다. 촉지적 상호작용을 통해 사용자들간에 향상된 품질의 상호작용이 가능해져, 사용자들의 공동경험 지각이 증가한다는 가설을 검증하기 위해 실험 목적의 소셜 미디어 시스템을 구축하고 그 시스템 상에서 실험을 진행하였다. 실험 결과에 대한 분석과 연구의 의의가 제시되어 있다.

• Journal of the Korean Institute of Intelligent Systems
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• v.22 no.4
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• pp.425-428
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• 2012

We propose some properties for fuzzy hypotheses testing by the principle of the rate of internal division on delta-levels. By the rate of internal division, we show that the acceptance and rejection degree for fuzzy the fuzzy hypotheses and reduce the spread of the fuzzy variance with average of the center and left or right spread of fuzzy number data.