• Journal of Information Technology Applications and Management
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• 제17권2호
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• pp.71-90
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• 2010

Electronic learning(or e-learning) has created hype for companies, universities, and other educational institutions. It has led to the phenomenal growth in the use of web-based learning and experimentation with multimedia, video conferencing, and internet-based technologies. Many researchers are interested in the factors that affect to the performance of e-learning or e-learning services. In this sense, this study is aimed at proposing e-learning system reuse prediction models in which e-learner intention to reuse influence factors(i.e., system accessibility, system stability, information clarity, information validity, self-regulated efficacy, computer self-efficacy, perceived usefulness, perceived ease of use, flow, and parental expectation) affect e-learner intention to reuse positively. A web survey was conducted for the full members of the e-learning education institute A in Seoul, Republic of Korea, an exclusive e-learning company that provides real time video lectures via the desktop conferencing system. The web survey was conducted for 20 days from November 5, 2009, through the e-learning web site of the company A. In this study, three data mining techniques were used : the multivariate discriminant analysis, CART, and C5.0 algorithm. This study was conducted to provide the e-learning service providers, e-learning operators, and contents developers with marketing and management strategies for improving the e-learning service companies, based on the data mining analysis results.

• Asia pacific journal of information systems
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• 제21권2호
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• pp.59-87
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• 2011

These days, firms are focusing on the improvement of relationships with business partners. The supply chain integrations are taking critical role in improving the relationships with business partners. In accordance with the development of the IT technology, it became possible for firms not only to integrate inner parts of the organization, but also to integrate the company with other organizations in the supply chain. Therefore, in e-Biz environments, it is imperative for firms to strengthen the core capacity through the supply chain, and to precisely determine the components of the determinants of e-Business integration which impact the firm performance. This study analyzed determinants that have impacts on e-business integration in e-business capacity perspectives in competitive environments. This study based on the premise that the resources and capacities that Grant(1991) and Hart(1995) emphasized do not directly influence the corporate performance. This study focused on the fact that corporate must create core competencies based on these capacities to establish competitive edge. Therefore, this study model analyzed to find out which e-Biz competencies are needed to integrate e-Biz according to competitive environment elements. This study designed to empirically analyze the impact of the e-Biz competencies to the e-Biz integration and to the corporate performance. Independent variables of this study-IT management, partner management, e-Biz knowledge, e-Biz establishment and proliferation, process innovation-are selected based on precedent studies on e-Biz competencies. We selected intermediate variables to verify that e-Biz competencies do not have direct impact on the corporate performance, but have impact on the e-Biz integration, which is intermediate effect. That is to verify that if the components of supply chain improve the integration level using e-Biz competencies, the overall supply chain performances will improve. Dependent variables are selected to verify that e-Biz integration has impacts on corporate performances. This study used factor analysis, path analysis, moderating effect analysis as statistical tests. First, we used exploratory factor analysis and confirmatory factor analysis to analyze reliability and validity. Because e-Biz competencies are presented variously by preceding studies, we used SPSS16.0 to verify if survey questionnaire used by theoretical backgrounds is properly composed. Second, we tested the property of structure model by AMOS. We did path analysis using AMOS16.0 to test structure that is composed of e-Biz competencies and e-Biz integration. Last, we tested moderating effects of measure factors. We analyzed 163 domestic companies to find out many significant suggestive points. First, relationship improvement capacity, e-business knowledge sharing capacity with business partners, and process innovation capacity are adopted as determinants of differentiation and competitive edges against competing firms. Second, e-business knowledge sharing capacity, and process innovation capacity are analyzed as the determinants of e-business integration in the firm which demand fluctuation in the market is high. On the other hand, among the determinants that require capturing ideas on new products, and strengthening the technological power, process innovation capacity are adopted as the determinants. These results provide us the foundation that the determinants that we have analyzed can impact the supply chain integration strategies which take into account the competitive environments.

• 정보보호학회논문지
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• 제20권6호
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• pp.67-81
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• 2010

최근 스마트폰의 보급이 늘어남에 따라 스마트폰을 이용한 자금 이체 및 증권 거래를 하는 스마트폰 전자금융 거래가 빠르게 확산되고 있다. 은행, 증권사, 신용카드사 등 대부분의 금융회사가 스마트폰을 통한 전자금융거래서비스를 제공할 것으로 전망된다. 또한 언제 어디서나 이용 가능한 스마트폰의 특성으로 인해 스마트폰 전자금융거래서비스의 이용은 더욱 급증할 것으로 예상된다. 하지만 우리나라의 전자금융거래 법제도는 대부분 일반 PC에 국한되는 기준을 적용하고 있기 때문에 스마트폰의 특성을 제대로 반영하지 못하고 있다. 따라서 본 연구에서는 스마트폰의 특성과 보안위협을 고려하여 현행의 법제도를 공인인증서의 사용 제약, 전자금융거래의 안전성 확보 및 이용자 보호를 위한 보안 프로그램 설치 전자금융 사고 책임 주체에 대한 문제점을 중심으로 분석했으며 이에 대한 개선방안을 제시하였다.

• Asia Marketing Journal
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• 제14권3호
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• pp.7-26
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• 2012

The success story of E-mart fascinated many academics and practitioners alike. Though E-mart began as a nameless discount store in Chang-dong, Seoul in 1993, it has transformed itself into a leading distribution company and one of the most powerful brands in Korea. Surprisingly, it achieved the great success against the two crises it met: the national economic crisis and the invasion of the global giant Walmart. The main objective of this case study is to formally examine how E-mart overcame the two crises. More specifically, this case study highlights the ways with which E-mart turned those difficulties into opportunities for growth. In our examination of the E-mart case, we could clearly see E-mart's competence and spirit that allowed it to turn crises into advantageous opportunities. E-mart attracted the customers who wanted value-oriented consumption by its positioning as the "Lowest price discount store", when consumer sentiment was frozen under the economic crisis. Furthermore, when a large-scale foreign discount store like Walmart entered the Korea market, E-mart built its core competencies as the 'Korean style discount store'. These ingenious positioning and efforts resulted in E-mart taking over their archrival, Walmart, and forced the global Goliath to exit the Korean market. The case of E-mart's effective crisis management teaches many important lessons and a few core lessons that apply to many companies. One such lesson is the importance of positioning which enabled E-mart to turn crises into opportunities. Granted, the strategy of positioning as the 'Korean style discount store', or 'Lowest price discount store' was possible due to overall support with cost reduction, development and management of their own system, an apprentice educate system, etc. based on an excellent selection of location of the store and efficient distribution systems. Still, the positioning strategy of E-mart was truly ground breaking in distancing itself from its competitors. The lessons from E-mart will help those companies currently in a stagnant situation or a crisis to turn their obstacles into great success.

• 한국컴퓨터산업학회논문지
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• 제2권3호
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• pp.397-406
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• 2001

E-business가 상용화됨에 따라 많은 기업들이 인터넷을 통해 B2B, B2C 등의 상거래를 하고 있다. 이러한 웹 기반 전자상거래를 지원하려면 그 회사의 이미지를 고객에게 홍보할 수 있는 홈페이지나 쇼핑몰을 구축해야 한다. 본 논문에서는 전자상거래 관련 홈페이지 및 쇼핑몰 구축시에 공통으로 사용되는 컴포넌트들을 기능에 따라 분류하고, 이 컴포넌트들의 정보, 검색, 편집 둥의 환경을 지원하는 관리 시스템을 설계하였다. 그리고 적용사례로서 상품의 구매과정을 도메인 분석하여 필요한 컴포넌트들을 추출하여 보았다. 설계된 프로토타입은 웹 기반 컴포넌트 관리 시스템 개발에 많은 도움을 줄 수 있을 것이다.

• Journal of Information Technology Applications and Management
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• 제17권3호
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• pp.121-134
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• 2010

Past studies in e-commerce loyalty were mostly focused on the effects of customer satisfaction and trust on loyalty toward online vendors. Few studies investigated the impacts of switching barriers, whilst they are widely proven to affect customer loyalty in offline commerce. Even in a handful of studies that did deal with switching barriers, their treatment of the subject remained at best superficial. This may have to do with the fact that switching costs in e-commerce could be comparatively negligible, as switching to another online vendor often involves one simple mouse click. In this study, we investigated the impact of switching barriers on loyalty under the e-commerce context. Furthermore, the extent of switching barriers which could be affected by those positive factors (most constructs were adopted from IDT) was also examined. The statistical testing results revealed that combined model which includes both the positive factors and the switching barriers explains the loyalty formation process more strongly ($R^2$ = 0.543) than each separated models ($R^2$ = 0.468 for positive factor only model, and $R^2$ = 0.365 for switching barrier only model). While only the two switching barriers such as convenience and emotional were shown to be statistically significant, we found that trust strongly influences customer's emotional barrier, let alone direct impact on loyalty, which thereby influences loyalty. The results offer insights for better understanding switching barriers in e-commerce related applications.

• 한국정보과학회논문지:컴퓨팅의 실제 및 레터
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• 제15권4호
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• pp.304-308
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• 2009

본 논문은 실시간 임베디드 OS인 TMO-eCos의 데드라인 기반 CPU 저전력 관리 기법을 다루고 있다. 해당 저전력 관리 기법은 경성 실시간 시스템인 TMO 시스템을 위한 태스크 순차화 기법에서 도출된 스케줄링 시나리오를 사용한다. 본 연구팀에서 개발한 스케줄링 사전 분석기는 주기적으로 동작하는 태스크의 주기, 데드라인, WCET를 기반으로 오프라인 분석을 실시한다. 최종적으로 TMO-eCos 커널은 CPU의 전력 소모를 줄이기 위하여 주기적인 태스크의 데드라인을 위반하지 않는 범위에서 CPU의 속도를 조절하여 시스템에서 사용하는 소비전력은 줄이게 된다. 본 논문은 이와 같은 과정과 실제 실험결과를 기술한다.

• Asia pacific journal of information systems
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• 제27권3호
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• pp.139-155
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• 2017

As social media are increasingly being used as a marketing platform, electronic word-of-mouth (eWOM) has also become popular in both research and business areas. However, although many studies have examined the effect of eWOM, the products investigated in most of these studies, such as films or books, are not likely to be consumed daily. Therefore, in this study, we analyze the effect of eWOM on low involvement products, which are inexpensive and enough for everyday spending. Given that low involvement products have unique characteristics such as low price, we conduct an experiment using a real sales dataset related to soft drinks. We also analyze the effect of eWOM in two social media platforms. We find that eWOM influences the sales of low involvement products, but such influence is dependent on the characteristic of the social media platform. Based on these results, we suggest that marketers and retailers selling low involvement products must consider eWOM, such as reviews, and differentiate their strategies based on their focused social media platform.

• 한국전자거래학회지
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• 제9권1호
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• pp.139-154
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• 2004

최근의 비즈니스 환경의 변화는 각 기업이 서로 상호작용을 빈번하게 하는 것을 요구하고 있다. 이러한 환경의 변화에서 정보시스템간의 정보교환을 원활히 하는 것을 바탕으로 통합이 주요한 키워드로 등장하고 있다. 특히, e-비즈니스와 같이 여러 기업이 상호작용하는 경우 문서의 이력과 변경과정을 체계적으로 기록하고 추적하는 것 이 중요하다. 본 논문에서는 워크플로우에 의해 자동화되어 실행되는 비즈니스 프로세스의 진행과정에서 XML문서의 변경을 자동으로 찾아 기록하고 이를 효과적으로 저장하는 새로운 방법론을 제시한다. 또한 본 논문은 이를 바탕으로 프로세스의 이상상황에서 문서를 이전 상태로 회복시키는 효과적인 방법론을 제안한다. 본 논문의 유용성을 증명하기 위하여 원형시스템을 구현하였으며, 간단한 실험을 통하여 저장의 효율성을 보였다.

• 한국전자거래학회지
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• 제12권3호
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• pp.107-131
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• 2007

전자상거래환경에서 공급자와 구매자를 연결시켜 주는 핵심적인 수단이 되고 있는 전자카탈로그의 중요성이 증가하면서, 전자카탈로그의 제작과 이의 효율적인 관리를 전문적으로 지원해 주는 전자카탈로그 시스템이 상용화되고 있다. 이 연구에서는 전자카탈로그 시스템이 지녀야할 서비스 특성들을 컨텐츠 제공측면, 사용자 참여 측면, 시스템 관리 측면으로 나누고 이들이 사용자만족에 미치는 영향을 측정하고 검증하여 보았다. 전자카탈로그 시스템을 이용하는 사용자의 관점에서 제시한 컨텐츠 제공 차원(게시정보 풍부성, 디자인 요소, 신뢰성), 사용자 참여 차원(상호작용성, 거래관리기능), 시스템 관리 차원(시스템 확장성, 안정성, 정보 보안성)의 요인들이 사용자만족에 영향을 주고 있음을 확인하였다. 연구의 결과로 디자인 요소, 신뢰성, 게시정보의 풍부성, 상호작용성, 시스템 안정성 등이 사용자만족에 큰 영향을 주는 것으로 나타났다.