• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.12 no.2
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• pp.111-117
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• 2012

With the rapid growth of smart phone technologies, mobile user's demands for using services provided by existing web or portal cites are highly increased. These services, however, are designed for the environment of desktop PCs or laptops in general, so it requires lots of costs for corrections and has difficulties for system protection to use in current mobile devices. In this paper, we design and implement a middleware for android-based smart phone apps to cooperate with a portal system with minimum corrections and function configuration. Our middleware system is working as an interface between an existing portal system and mobile devices to provide harmonious usage and safe system protection.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.15 no.1
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• pp.171-178
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• 2015

In these days, the practical training education is getting highlighted in IT curriculum. This study is for the Cloud computing based Virtual Desktop Service Plan of IT education and its efficient operation and management plan. With the implementation of a virtual lab environment system, the training environment which is customized by the curriculum is able to be provided. Also in the case of the limited system, the curriculum is able to be provided for each subject in advance. Therefore if the Cloud Training (or Practicing) Portal system for the multiple cyber universities is implemented according to this study's estimated scale and operation managing policies, the virtual training education service system could be provided in more efficient and more effective ways.

• Journal of KIISE:Computer Systems and Theory
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• v.33 no.12
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• pp.859-866
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• 2006

Grid portal services provide more flexible research environment by overcoming time and space limit of existing application-based grid services. However user's requirements such as user interfaces are not clear during development cycle and changed frequently. Therefore it is necessary to reduce the cost for creating and maintaining user interfaces of grid services. In this paper, we suggest an object-oriented user control model which allows easier development of user interfaces and increases code reusability by abstracting objects from presentation layer of web. In this model, structure of presentation pages can be described more clearly and implementation of actions is simple and easy.

• Proceedings of the Korea Association of Information Systems Conference
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• 2003.05a
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• pp.219-239
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• 2003

지난 몇 년간 인터넷의 확산과 더불어 기업 환경에는 많은 변화가 있었다. 그 중 하나가 전자적인 형태로 접근할 수 있는 정보 양의 급증이라 할 수 있다. (Martin White, 2000 : 신학철, 2001) E-business 환경에서 이처럼 정보의 양이 급증함에 따라 정보의 효율적인 활용은 기업의 주요 경쟁원천이 되고 있다. 정보의 중요성을 깨달은 기업들은 운영효율성 증가를 위해 백오피스시스템과 프론트오피스시스템 등에 많은 투자를 했다. (안승용, 2001) 하지만 새로운 정보시스템 도입 시 레거시시스템과의 통합을 고려하지 않아 업무효율성 향상을 위한 정보기술이 역으로 업무수행을 저해하는 결과를 초래했다. (Jaydip, 2002) 예컨대 기업의 각 시스템간에 정보의 일관성이 결여되어 있고, 필요한 정보 역시 기업내 여러 시스템에 산재되어 있어 정보의 이용 면에서 효율성이 떨어지는 문제에 직면하게 된 것이다 따라서 기업은 각 시스템에 산재해 있는 정보사용의 효율성을 놀이기 위해 기업 내 다양한 정보시스템간 통합의 필요성을 인식함에 따라 이전까지 분산 환경이던 IT환경이 점차 기업정보포탈(Enterprise Information Portal: EIP)같은 통합 환경으로 바뀌게 되었다. (KRG Report, 2002) EIP는 현재와 E-business를 준비하는 기업에 중요한 관심사항으로 떠오르고 있으며 현재 IBM, MS 같은 글로벌 기업 뿐 아니라 다수의 국내 업체들도 통합 솔루션 시장 진출해 경쟁을 벌이고 있다. 본 논문에서는 EIP의 개념을 살펴보고 기존의 정보시스템과 EIP 관련 연구를 기반으로 새롭게 부상하고 있는 EIP의 성과를 시스템 품질과 정보품질로 측정하여 이들 요인이 EIP사용자의 직무성과에 미치는 영향에 관해 연구하였다. 본 논문은 EIP를 도입한 기업을 대상으로 EIP성과에 대한 연구를 진행하여 EIP를 도입하거나 구현중인 기업에게 적합한 경영관리적 방향을 제시할 수 있을 것이다.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.26 no.3
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• pp.713-724
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• 2016

In providing services by using informations of each client, business managers have duties to maintain the personal information under the procedure of collecting, storing, using/providing, and destroying them. Besides, they also have duties to inform their clients, the subject of the personal information, of how to manage and use their client's informations. In this study, the privacy policies, stipulated at domestic and foreign portals will be compared with one another, and the differences between domestic and foreign portals will be shown. The implication in each field and categories of domestic web sites will be found.

• Journal of the Korean Society for Library and Information Science
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• v.49 no.4
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• pp.317-334
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• 2015

This study aims to investigate information seeking behavior of mobile-based Web users, especially, college students. This study also evaluates mobile search services based on various criteria, and suggests how to improve portal's mobile search services. The results of this study show that the most urgent improvement is needed in the contents of mobile search services. Improvements are also required in the area of interface design followed by accessibility and mobile search functionalities. The results of this study can be applied to the portal's effective development of mobile search services.

• Asia pacific journal of information systems
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• v.34 no.1
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• pp.321-350
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• 2024

When a competent employee leaves an organization, the technical skills and know-how possessed by that employee also disappear, which may lead to various problems, such as a decrease in organizational morale and technology leakage. To address such problems, it is important to increase employees' job satisfaction. Due to the advancement of both information and communication technology and social media, many former and current employees share information regarding companies in which they have worked or for which they currently work via job portal websites. In this study, a web crawl was used to collect reviews and job satisfaction ratings written by all and incumbent employees working in nine industries from Job Planet, a Korean job portal site. According to this analysis, regardless of the industry in question, organizational culture, welfare support, work system, growth capability and relationships had significant positive effects on job satisfaction, while time and attendance management, performance management, and organizational flexibility had significant negative effects on job satisfaction. With respect to the path difference between former and current employees, time and attendance management and organizational flexibility have greater negative effects on job satisfaction for current employees than for former employees. On the other hand, organizational culture, work system, and relationships had greater positive effects for current employees than for former employees.

• Journal of the Korea Convergence Society
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• v.13 no.2
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• pp.177-183
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• 2022

This study investigated through eye tracking what gaze path the audience searches through portal sites (Naver, Daum, Zoom, and Nate). As a result of the layout analysis according to the gaze path of the search engine, the four main pages, which can be called to be the gateway to information search, appeared in the form of a Z-shaped layout. The news and search pages of each site use an F-shape, which means that when people's eyes move from top to right in an F-shape, they read while moving their eyes from left to right(LTR), which sequentially moves to the bottom. As a result of analyzing through the heat map, gaze plot, and cluster, which are the visual analysis indicators of eye tracking, the concentration of eyes on the photo and head copy was found the most in the heat map, and it can be said to be of high interest in the information. The flow of gaze flows downward from the top left to the right, and it can be seen that the cluster is most concentrated at the top of the portal site. The website designer should focus on improving the accessibility and readability of the information desired by the user in the layout design, and periodic interface changes are required by investigating and analyzing the tendencies and behavioral patterns of the main users.

• Spatial Information Research
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• v.18 no.4
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• pp.129-140
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• 2010

Large portal sites such as Google, NAVER provide Various services based on the map. Thus, interest and demand of users who want to obtain the region-related information has been increased. And services that combine the regional information with the map are provided currently at the large portal sites. However, the existing services of large portal sites do not provide enough detailed information and are inconvenient because acquisition process of related information is repeated. Therefore, the system that enables users to obtain detailed information related on the specific region synthetically and easily is needed. In this paper, we propose a system model using map interface and knowledge-processing in order to build the system that is useful for acquiring regional information. The model consists of 3-Layers: 'Regional Information Web-Documents Layer', 'Unique Regional Information Layer', and "Map-Interface Layer'. The Integrated Region~Related Information Searching System based on the model is implemented through the following 4-steps: (1) extracting the keywords that represent specific region (2) collecting the related web pages (3) extracting a set of related keywords and computing an association between the keywords (4) implementing a user interface. We verified validity on the model we proposed. knowledge-processing algorithm using affinity matrix, and UI that help users conveniently search by applying the system to region of the Goyang City. This system integrates regional information existing merely individual 'information' and provides users the 'knowledge' that is newly produced and organized. Users can obtain various detailed regional information and easily get related information through this system.

• Journal of the Institute of Electronics Engineers of Korea SC
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• v.43 no.6 s.312
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• pp.68-75
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• 2006

During cancer therapy by using high energy radiation, it is possible to improve the radiation therapy efficiency by performing a precise radiation therapy after verification of generated setup errors. In this paper, the video based electronic portal imaging device (EPID) which could display the portal image with near real time was developed to verify treatment position errors in radiation therapy instead of an analog typed portal film. This EPID system for applying QA tool of radiation therapy machine was consisted of a metal/fluorescent screen, $45^{\circ}$mirror, camera and image grabber. Radiation field verification has been performed to check quality assurance of the treatment machine itself by using this EPID system. The radiation field error was easily observed by edge detection of irradiated field size on EPID image when $0.6^{\circ}$ shift of collimator angle was generated. So, this implemented EPID system could be used as a radiation QA tool.