• The Journal of Korean Institute of Communications and Information Sciences
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• v.18 no.12
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• pp.1945-1955
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• 1993

Two types of key distribution protocols with user authentication are proposed for PCS(Personal Communication Service) and digital mobile communication systems. In this paper, we investigate the service procedure and security requirement for PCS. also discuss the security problems of KDPs previously proposed for digital mobile communication, and show that Park`s type II among the schemes is easily broken by an impersonation attack. Our proposed I, II are based on the modified cryptosystem of Rabin and ElGamal, and reduce the amount of computation for user authentication. Such a reduction is good solution coped with the limited capability of user terminal on PCS. As a result of making a comparison between our schemes and the previously presented schemes, we can know ours are more secure and efficient for PCS.

• Journal of the Korean Society for information Management
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• v.27 no.3
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• pp.67-82
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• 2010

In comparison to the services provided by the typical information systems, the historical records from the period before the modern times require additional information services to reflect the format and content oriented peculiarities of the data. The additional services also need to be considered in light of the users' information needs. For this study, a series of literature reviews was conducted to present the specific analysis criteria for the historical information services. Based on these criteria, the domestic and foreign historical information service provision and use status was investigated. In addition, users' information needs were identified and user-based historical information service improvement suggestions were generated.

• Journal of Korean Library and Information Science Society
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• v.34 no.1
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• pp.351-378
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• 2003

This study has been examined in information service in related aspect of its user. Also this subject is researching of information itself attribution and relationship with end user And, in information facilities of library and information center it has been studied how to develope satisfaction service for user, along with fur causing both theory and practical application. For this object it has been also reviewed theoretically through out 5 fields as below; 1) information need and using 2) information storage and retrieval 3) information property and value 4) bibliometrics and citation analysis 5) administration and management.

• Electronics and Telecommunications Trends
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• v.21 no.2 s.98
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• pp.74-87
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• 2006

최근 사회 전반적으로 급격히 진행되고 있는 디지털 컨버전스 트렌드의 한 모습으로등장한 RFID/USN의 급속한 이용과 관련한 이용자들의 이용행태와 서비스 활성화를위한 방향을 분석 전망한다. 이를 분석함에 있어 필수적으로 요구되는 RFID/USN의 개념, 서비스 특징 및 국내외 산업동향을 분석하고 관련 응용서비스의 이용과 관련하여 예비 이용자들이 어떤 행태를 보일 것인지 분석하고 전략적 시사점을 도출한다. 이를 위하여 이용자들의 이용행태 분석과 관련하여 예비 이용자에 대하여 설문조사를 실시하였다. 조사내용은 RFID/USN 응용서비스 활용수준, 분야별 이용 현황, 만족도, 이용의 문제점, 이용의향 및 수용도, 관련 비용 지불 정도 및 수용가격, 이용시기 및 용도, 지원 육성 분야 등이다. 또한 응용서비스 활용정도가 상대적으로 높은 집단에 대하여 표적 분석을 통하여 잠재시장에 대하여 추정 분석하고, 향후 응용서비스 활성화를 위한 시사점과 사업화 방향 및 정책 추진방향을 도출한다.

• Proceedings of the Korean Society for Information Management Conference
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• 2006.08a
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• pp.17-22
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• 2006

본 연구에서는 질문지법을 이용하여 과학기술분야 연구자들의 정보요구를 파악하고 이를 바탕으로 정보요구별 탐색행태를 분석하였다. 분석결과, 특정 정보요구에 대해 비공식 커뮤니케이션 채널이 정보탐색에 중요한 영향을 미치는 것으로 나타났으며, 탐색과정에서 이용자가 느끼는 정보부족의 원인에 대해서는 정보요구별로 어느 정도 차이가 있는 것이 확인되었다. 반면, 정보탐색환경에서 연구자들이 중요하게 생각하는 요소는 정보요구별로 큰 차이가 없는 것으로 나타났다. 정보요구를 바탕으로 과학기술분야 연구자의 탐색행태 분석결과를 적용함으로써 이용자 특성에 따라 개별화된 과학기술 정보 서비스를 기대할 수 있다.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.24 no.2
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• pp.205-230
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• 2013

Academic libraries are trying to develop fully mobile web sites and mobile applications so that users can access to their services even using mobile devices. As the mobilization trends of library services increase in quantity, we need to more focus on what mobile services users want, ultimately for the growth with quality. This study seeks to explore users' needs and uses of mobile library services and then suggests solutions for improving the mobile services in academic libraries. This study conducted on and off-line surveys with 608 students from two universities, which have provided active mobile services with both a mobile web site and an application. The questionnaire was designed to elicit information on respondents' frequency of mobile library visit, the purpose of visit, the reason to use/not use, how to access to the services, the preferred types of the services, satisfaction and dissatisfaction factors, and urgently needed improvements. Based on the findings, this study discussed strategies to improve the quality of mobile services and to increase in users' visit.

• Journal of Information Management
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• v.33 no.1
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• pp.31-47
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• 2002

The main purpose of this research is to look into not only how users evaluate two major databases(BIST and SATURN) of the scientific and technical literature in Korea, but also what users expect from scientific and technical information services in general. The result of the user evaluation shows that there is a very little difference between two databases in database quality. It was found that BIST is better than SATURN in terms of accuracy, customer support, searching capability, and currency, whereas SATURN is preferred to BIST for completeness and the average number of retrieved items. User expectation for scientific and technical information is also investigated by surveying its user community. Among three user groups, there is notable disagreement in language uses to search non-korean literature. Each group also shows different demands for translation of original literature. This study attempted to evaluate the quality of the scientific and technical information (BIST and SATURN) and simultaneously to investigate users demands in general. By doing so, the specificity implied in quality evaluation of specific information services as well as the generalization of the users behaviors in scientific and technical community were accommodated in this study.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.11 no.2
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• pp.157-173
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• 2000

The purpose of this study is to examine the user interface of digital information service in university libraries. Twenty-eight university libraries are analyzed by five characteristics； access point, operational characteristics, interface listing items. user help function, search types. The result of this study shows that both functions and interface design of digital information service in university libraries need to be Improved.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.22 no.3
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• pp.151-171
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• 2011

In public libraries, there are many difficulties in fulfilling requests by users, as typically have from diverse backgrounds and purposes for visiting the library. To overcome this problem, collection development for public libraries is required to enhance the satisfaction level of users regarding public library materials. Thus, in this study, a survey was conducted of users of 10 public libraries located in Seoul to analyze their collection-use behaviors and the study finally presents collection development for public libraries in Seoul based on data acquired.

• Journal of the Korean Society for Library and Information Science
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• v.43 no.1
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• pp.5-26
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• 2009

The purpose of this study is to improve the classification focused on KDC 4th edition for children's materials. For the study, literature study, KDC application and user survey in 51 libraries for children were performed. Based on the results, classification for children's materials is proposed to improve in two ways: classification system itself and arrangement in the shelf. First of all, it is required to scatter the subjects that are centered on specific numbers and to allow various types, characteristics and literature genre of children's materials to be classified in KDC. KDC also should provide specific notes and classification guidelines for interdisciplinary subjects. In the shelf arrangement, it is proposed to consider the introduction of user-friendly call number and arrangement principles by ages or titles. In the end, it is necessary to compose various collections that represent users' needs, and the user education program is needed.