• Journal of the Korea Institute of Information Security & Cryptology
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• v.19 no.6
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• pp.113-119
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• 2009

In recent years, to provide visitors with the various and dynamic services, many ActiveX Controls are developed and distributed in most of the web sites such as e-Government Internet banking Portal in Korea. However, unsecure ActiveX Controls may be critical security threats on Internet User. Although hacking incidents increase sharply for these vulnerable ActiveX Controls, there are not enough national security actions or policies. Thus, in this paper we propose the technical method to design 'Security model for ActiveX Control Managemnet through Security Authentication' to be able safe and useful security management in three aspects of development distribution using.

• KIPS Transactions on Computer and Communication Systems
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• v.3 no.10
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• pp.311-322
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• 2014

IoT(Internet of Things) is a concept of connected internet pursuing direct access to devices or sensors in fused environment of personal, industrial and public area. In IoT environment, it is possible to access realtime data, and the data format and topology of devices are diverse. Also, there are bidirectional communications between users and devices to control actuators in IoT. In this point, IoT is different from the conventional internet in which data are produced by human desktops and gathered in server systems by way of one-sided simple internet communications. For the cloud or portal service of IoT, there should be a file management framework supporting systematic naming service and unified data access interface encompassing the variety of IoT things. This paper implements a DB-based virtual file system maintaining attributes of IoT things in a UNIX-styled file system view. Users who logged in the virtual shell are able to explore IoT things by navigating the virtual file system, and able to access IoT things directly via UNIX-styled file I O APIs. The implemented virtual file system is lightweight and flexible because it maintains only directory structure and descriptors for the distributed IoT things. The result of a test for the virtual shell primitives such as mkdir() or chdir() shows the smooth functionality of the virtual file system, Also, the exploring performance of the file system is better than that of Window file system in case of adopting a simple directory cache mechanism.

• Journal of rehabilitation welfare engineering & assistive technology
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• v.1 no.1
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• pp.37-43
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• 2007

Internet is essential to live nowadays, but persons with disabilities are hard to use internet because people who develops and operate web sites don't think and comply the web accessibility standard. In order to solve this problem, Korea governments implement a lot of policies such as. making web accessibility standard, operating web accessibility education program, etc.. The purpose of this paper is examined the web accessibility compliance of major web sites such as portal, news, banking, education in Korea. In order to investigate the web accessibility compliance status of major web sites's in Korea, 15 web sites were chosen. This study was used the 4 major checkpoints that must be the crucial among 14 checkpoints in Internet Web Contents Accessibility Guidelines which was amended by Ministry of the Information and Communication in 2005. The results of this study showed that 15 major web sites in Korea didn't meet the 4 major checkpoints.

• The KIPS Transactions:PartD
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• v.16D no.5
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• pp.817-824
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• 2009

In recent years, Weblog has become the most typical social media for citizens to share their opinions. And, many Weblogs reflect several social issues. There are many internet users who actively express their opinions for internet news or Weblog articles through the replying comments on online community. Hence, we can easily find internet blogs including more than 10 thousand replying comments. It is hard to search and explore useful messages on weblogs since most of weblog systems show articles and their comments to the form of sequential list. In this paper, we propose a visualizing and clustering system called TRIB (Telescope for Responding comments for Internet Blog) for a large set of responding comments for a Weblog article. TRIB clusters and visualizes the replying comments considering their contents using pre-defined user dictionary. Also, TRIB provides various personalized views considering the interests of users. To show the usefulness of TRIB, we conducted some experiments, concerning the clustering and visualizing capabilities of TRIB, with articles that have more than 1,000 comments.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.4
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• pp.1946-1952
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• 2014

The purpose of this study is to suggest some improvements of information service on the Internet through a comparative analysis of information use patterns of science and technology researchers in universities, research institutes and business enterprises. We classify information use patterns into information use purpose, information use types, a frequently used/referenced portal site, the initial method of internet search, information service selection factors and the channels of off-line information acquisition. The results of this study are as follows: First, according to frequency analysis, there are some information use patterns among S & T research groups. Second, according to ${\chi}^2$ analysis, there are some significant differences in ratio of information use patterns among them.

• Journal of the Korean Society for Library and Information Science
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• v.40 no.1
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• pp.195-215
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• 2006

With the developments in the areas of IT and internet, the portal sites have provided a variety of services. The explosive growth of portal sites based on IR services has a great influence on information services and types of information provided typically by libraries. Because of various and useful information services, information users consider portal sites as a more useful information resource. With the user's changes in information resource the portal sites can be a threatening competitor to libraries as a information resource. To deal successfully environmental changes around libraries. IR agency service can be best solution. IR agency service is a sort of more advanced and expanded information services for information users who can not connect to internet or has no skill on IT area. In this paper, information users' opinion on their internet using behavior and IR agency service was collected and analyzed. Based on the result of survey. this paper proposes how to provide IR agency service and its expecting effect for libraries, especially public libraries.

• The Journal of Society for e-Business Studies
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• v.6 no.3
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• pp.127-148
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• 2001

As the Internet service is expanding rapidly, portal sites, a gateway tn the net, are attracting increasing attention these days. As the Internet service has expanded rapidly, so has the interest for portal sites,, which serve as a gateway to the net. Despite the tendency, however, research on a measure by which to evaluate the quality of portal sites or development of such measures has not been fully pursued. As online services, faced with profitability, are considering 'charge per view', the development of a set of quality evaluation measures for portal services will prove to become a valuable instrument in constructing competitive strategies that are vital for survival and growth of a firm. In that regard, this study aims to develop a set of evaluation measures for Internet portal sites by empirically investigating the most common offline measures for quality of services, SERVQUAL, retail SERVQUAL and other evaluation measures for IT-related online services. Moreover, the study offers the strategic implications of the defined measures.

• Journal of Information Technology Applications and Management
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• v.15 no.4
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• pp.77-101
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• 2008

The market size of Internet portals has been continuously expanded and also competition has been fierce. For the business success of Internet portals, it is necessary to repeatedly perform a renewal project which improves their services, reflecting more improved or changed strategies. Accordingly, this paper proposes an analysis methodology for performing the renewal project more systematically and effectively. The methodology consists of four phases : establishing improved strategies, analyzing customers, deriving service alternatives, and determining services. The methodology places an emphasis on reflecting effectively customers' standpoints (i.e. customers' needs) and service providers' standpoints (i.e. business strategy) upon service improvement. Furthermore, the methodology includes a specific technique for analyzing the feasibility of services. To demonstrate the practical usefulness of the methodology, a real-life case is illustrated.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2007.05a
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• pp.161-163
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• 2007

개인의 컴퓨터 사용은 업무와 오락에 국한되지 않고 삶의 한 부분으로 자리매김을 하였다. 이와 함께 컴퓨터와 통신 그리고 기능과 이동성이 한 곳에서 만날 때 사용자 중심의 이동 컴퓨팅이 나오게 된다. 사용자의 요구와 필요에 민감하게 대응하지 못하는 설계 방침은 시장에서 외면당하게 되고 사용자의 오감을 만족시켜주는 설계와 제품은 인기를 끌게 되는 것이 현실에서 시장지배의 키 포인트가 되었다. 이에 따라 사용자의 선호도가 중심이 되는 이동 컴퓨터 설계는 사용자에게 가장 중요하다고 생각되는 기능과 현재의 기술을 반영한 현실적 크기와 무게 그리고 사용자들이 바라는 통신 접속 기능이 일차적으로 반영되어야 한다. 이러한 원리를 반영한 제품들을 각종 포털 사이트와 사용자 포럼 인터넷 상점을 통해 찾아보고 사용자들이 가장 선호하는 설계 방향을 규명하는 것은 사용자의 소비 성향을 규정하는데 큰 도움이 되고, 사용자 중심의 이동컴퓨터 설계의 가이드 라인이 될 것이다.

• Proceedings of the Korea Contents Association Conference
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• 2011.05a
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• pp.397-398
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• 2011

산업의 고도화로 인한 환경오염과 하천공간의 이용이 증가함에 따라 하천 상태에 대한 관심이 높아졌다. 그러나 하천의 상태에 대한 정보를 쉽고, 정확하게 찾아 볼 수 있는 콘텐츠가 부족하다. 본 논문은 U-City에서의 쾌적한 도시환경을 위한 서비스의 일환으로 하천 주변 환경의 오염에 대한 정보를 제공할 수있다. 하천의 구간별 하천수와 하천토양의 오염도를 측정하여, 수질환경기준에 따른 수질분석 결과를 시각화한다. 시각화는 전체 수질 및 토양에 관한 시각화와 각 오염물질의 변화량을 동시에 3차원으로 시각화하여, 직관적이고 정확한 정보를 제공받을 수 있다. 또한 인터넷 포털사이트의 지도 서비스와 연계하여 사용자들의 접근성을 높일 수 있다.