• Review of KIISC
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• v.21 no.1
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• pp.51-56
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• 2011

'손안의 PC'로 비유되는 스마트폰의 등장 및 폭발적인 보급과 함께 온라인 정보서비스 패러다임이 모바일 환경으로 급속히 전환되고 있다. 이러한 모바일 환경은 시간 및 공간의 제약없이 정보서비스를 받을 수 있는 장점이 있는 반면, 상대적으로 취약한 보안 환경으로 인한 정보보호에 대한 우려도 증가하고 있다. 이에 사이버 인감증명서로 비유되는 공인인증서는 여전히 보편적인 신뢰수단으로 그 위상을 유지할 것으로 전망되고 있으며, 본 고에서는 모바일 환경에서의 공인인증서비스 현황 몇 안전성 신뢰성 제고를 위한 정책 방향을 소개한다.

• Proceedings of the Korea Society of Information Technology Applications Conference
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• 2007.05a
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• pp.143-154
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• 2007

인터넷이 대중화대면서 온라인 쇼핑이 가능해졌고 구매자들은 인터넷을 통해 구매와 관련 된 경험, 서비스 등을 다른 사람들과 공유할 수 있게 되었다. 인터넷 쇼핑의 특성상 제품을 직접 눈으로 보고 만져 볼 수 없기 때문에 온라인 구전(Online Word of mouth)이 상품 구매 판단의 잣대로 활용되고 있다. 따라서 본 연구에서는 온라인 쇼핑몰에서 구전 정보 특성이 구매자들의 인지된 구전 정보 가치에 영향을 미치는지 실증적으로 분석하였다. 구전정보의 객관성, 관련성, 신빙성, up-to-dateness는 인지된 구전정보가치 즉 구매 불확실성 감소에 긍정적인 영향을 주었다. 구매 불확실성 감소는 온라인 쇼핑몰의 신뢰에 긍정적인 영향을 미쳤다.

• The Journal of Society for e-Business Studies
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• v.14 no.4
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• pp.95-118
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• 2009

Virtual community, which is formed on the internet, is expected to serve the needs of members for communication, information, and knowledge sharing. The executives of organizations should consider operating strategy of virtual community as a new innovation or knowledge pool since members share knowledge. However, many virtual community have failed due to members' low willingness to engage and furthermore to share knowledge with other members. Thus, there is a need to understand and foster the determinants of members' loyalty in virtual community. The objective of this study is to develop an integrated model designed to investigate and explain the relationships between contextual factors, personal perceptions of virtual community, usefulness, ease of use, familiarity, members' trust, reputation, community trust, attitude, satisfaction and loyalty. Empirical data was collected from 286 internet users and tested using structural equation modeling to verify the fit of the hypothetical model. The results show that the usefulness, familiarity significantly influences attitude and members' trust is significantly influence the community trust. And I confirmed that ease of use and attitude play the role of determinants in making the satisfaction, community trust and reputation influence the satisfaction that have the direct effect to making the loyalty. The results of the study can be used to identify the loyalty in virtual community. By investigating the impacts of contextual factors and personal perceptions on virtual community, the integrated model better explains behavior than other proposed models. This study might help executives of virtual communities and organizations to manage and promote community trust, attitude, satisfaction to stimulate members' willingness to revisit the community and futhermore enhance their virtual community loyalty.

• 한국산학경영학회:학술대회논문집
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• 2006.06a
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• pp.57-77
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• 2006

모바일 인터넷 시장은 최근 주목받고 있으며, 소비자의 구매행위에 많은 변화를 가져올 것으로 전망되어 진다. 이에 본 연구는 온라인 인터넷 환경과 모바일 인터넷 환경에서 연구되어 왔던 신뢰와 구매의도에 영향을 미치는 요인에 관한 선행연구들을 근거로, 모바일 환경에서 소비자의 구매의도에 영향을 미치는 요인을 도출하고, 이러한 영향 요인들이 어떠한 영향을 미치는지를 분석하는데 목적을 둔다. 이를 위해 선행연구를 검토함으로써, 구매의도에 영향을 미치는 요인을 체계화한 후, 실증자료를 바탕으로 연구 가설을 검토하여, 구매의도에 영향을 미치는 구성요인들과 신뢰와 구매의도의 관계를 이론적으로 체계화하고자 한다. 연구결과 유용성, 용이성, 이동성, 유희성이 신뢰에 긍정적인 영향을 미치는 것으로, 유용성, 용이성, 신뢰가 구매의도에 긍정적인 영향을 미치는 것으로 나타났다.

• Journal of Korea Society of Industrial Information Systems
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• v.15 no.1
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• pp.95-107
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• 2010

This study investigates the influential factors for online shoppers to accept the brand extension of Internet companies. We specifically attend to the trustworthiness of vendor which has emerged vital for Internet-based commerce. After case analysis, we conclude that vendor's trustworthiness has more important influence on the successful brand extension on Internet than product similarity does.

• Proceedings of the Korea Multimedia Society Conference
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• 2001.11a
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• pp.348-354
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• 2001

웹 상에서 인터넷을 이용한 전자상거래와 관련된 다양한 서비스가 창출되고 있다. 온라인 쇼핑몰에서 발전된 개념인 온라인 경매시스템은 쇼핑몰과는 달리 물품등록, 입찰 및 낙찰, 물품거래의 과정을 거친다 그러나, 대부분의 경매시스템은 입찰 및 낙찰과정에서 거래 당사자간에 신뢰성 있는 가격을 결정짓지 못하고 있다. 따라서, 본 논문에서는 가격 결정 방식에 따른 인터넷 경매의 종류와 유형을 분석한 후 경매 시스템 사용자들에게 사례 유사도와 웹 마이닝을 이용한 가격 정보를 제시하여 객관적인 기준으로 경매 물품의 가치를 평가할 수 있도록 하고, 표준화된 데이터 표현 방법인 XML을 이용한 인터넷 경매 시스템을 설계하고 프로토타입을 구현하고자 한다.

• Journal of the Korean Society for information Management
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• v.30 no.3
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• pp.207-228
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• 2013

The purpose of this study is to reveal the influence of the expectation and perceived performance of the online science & technology information service quality on user satisfaction and royalty. To achieve this goal, we use the NDSLQual model to measure the quality of NDSL service. The results were as follows: First, among seven expectation factors, four factors (reliability, convenience, system usability and information quality) had a positive effect on the user satisfaction. Second, while service recovery had a negative effect on the royalty, the other six factors (reliability, convenience, system usability, responsiveness, security and information quality) had a positive effect on the royalty. Third, among seven perceived performance factors, three factors (reliability, convenience and information quality) had a positive effect on the user satisfaction. Fourth, among seven perceived performance factors, three factors (reliability, convenience and information quality) had a positive effect on the royalty. As a result, information quality, reliability and convenience of the expectation and perceived performance are common factors influencing user satisfaction and royalty.

• Journal of Internet Computing and Services
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• v.6 no.4
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• pp.37-46
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• 2005

Computer are being used in an increasingly wide variety of application areas, and their correct operation is often critical for business success and humasn safety. Developing high quality software products is therefore of prime important. The recent game software become popular, so we are interest in the game software testing. According to the kinds of game software, because it has the different characters, so game software testing is very difficult. According to enviroment change, Recently, online game is popular, so online game trade in the world market. In the company, developers try to develop the reliable game software. But we can experience many fault of game software in spite of the beta testing. Especially, Testing is very difficult on the game software because of various environment and functionality. We tried the survey for game user. In this paper, we study the quality testing metric of game software fault basis on the ISO/IEC 9126. Also, we consist of the check list of game software a point of view user. It apply for the reliability testing metrics of ISO/IEC 9126.

• Journal of KIISE:Information Networking
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• v.32 no.3
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• pp.310-317
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• 2005

In opposition to conventional networks, mobile ad hoc networks usually do not offer trust about nodes or online access through certificate authorities or centralized servers. But, nodes in those systems need process that can search path as well as trust each other to exchange data in safety For these reasons, traditional security measures that require online trusted authorities or certificate storages are not well-suited for securing ad hoc networks. In this paper, I propose a secure and effective method to search the optimized path using profitable flooding techniques on certificate chains in MANETS(Mobile Ad hoc NETworks). This system includes not only using routing protocols that are generally broadcasting packets but also finding nodes securely and verifing the process through tiust relationships between nodes that are searched.

• The Journal of the Korea Contents Association
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• v.19 no.4
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• pp.150-161
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• 2019

This study analyzed the impact of social trust and conflict perception of news users on news use. To this end, 548 adults aged 20 and under 69 were surveyed online. The analysis results are as follows. First, the level of awareness of social conflict has been shown according to people's political orientation. Second, the higher the trust in society, the greater the use of news regardless of land-based, comprehensive, and online channels. Third, the perception of social conflict was related to the use of news through JTBC, TV Chosun, Channel A and YouTube. Fourth, the age and political orientation of news users influenced the use of news by channel. Finally, the more progressive the tendency was to use news through JTBC or to watch news on portals. On the other hand, the more progressive the use of news through three terrestrial broadcasters, TV Chosun, and Channel A decreased. In conclusion, this study is meaningful in terms of the user-oriented discussion of the news environment and the impact of an individual's social perception on news use.