• Journal of the Korean Society for Library and Information Science
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• v.19
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• pp.151-188
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• 1990

The aims of automation efforts in libraries are the rationalization of interval work and improvement of user services. After a period of exclusive internal computer utilization, later voluntary contact with the computer (e.g., circulation control with self services), patrons of American libraries now have to go to a computer terminal if they want certain information. Online public access catalogs(OPAC) have been used in American libraries since the end of the seventies. But OP AC are accepted by patron only if they have a useful and flexible user interface. This paper briefly describes the use of online catalogs in different type of libraries, categories of user (user, non-user), aspect of catalog use in context with computer experience etc. The disscussion then focuses on the characteristics of the final report of online catalog use study of Council on Library Resources and user problems in searching, as reported in many other catalog use studies.

• Journal of Korean Library and Information Science Society
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• v.31 no.3
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• pp.115-144
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• 2000

'I'he purpose of this study is to offer the basic data in an Online Public Access Catalog(OPAC) for improving information guidance service and user interface when constructing a new system. For this purpose, users' using situations, purposes, frequencies, and types were examined and the problems of the present OPAC were found and some measures of improvement were proposed. Literature studies and a survey were paralleled in this study. The former was based on the previous studies to theorize the use of OPAC, and the latter was performed to clarify the relationships between some factors that affect the use of OPAC and OPAC's using levels, which was made on 308 users, with questionnaire and interviews, who have been using OPAC in Shimin Library.

• Journal of the Korean Society for information Management
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• v.15 no.1
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• pp.43-62
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• 1998

this study is to determine whether color, icon, sorting methods of brief description about materials, and postioning methods of final records affect the usability of the OPAC(Online Public Access Catalog) screen designs in terms of success rate, search time, and users' preferences. The findings suggest that OPAC systems can be optimized to enhance user's performances conflict with each other, designers should give more weight to performance because of the library's mission of meeting users' information needs.

• Journal of the Korean Society for Library and Information Science
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• v.41 no.3
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• pp.25-53
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• 2007

The purpose of this study is to analyze the characteristics of OPAC displays and search interfaces for children. The OPACS of Cheongju Miracle Library, Nowon Children's Library in Seoul. Los Angeles Public Library in the U.S.A. and HelMet Library System in Finland are examined on the basis of 'OPAC Display Guidelines(Draft)' published by IFLA and Nielsen's 'User Interface Design Heuristics'. Discussed are such topics as the features of basic and detailed search screens. the brief display of search results. the arrangement and full display of bibliographic records, and the displays for zero-results and large retrieval sets. The OPAC displays of Cheongju Miracle Library and Nowon Children' Library are not particularly designed to serve children which are their primary users. The OPAC displays for children of LAPL and HelMet Library System are rather simplified and customized to represent specifically the needs and information seeking behavior of children.

• Journal of the Korean Society for Library and Information Science
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• v.40 no.2
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• pp.315-332
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• 2006

In the 21st knowledge society, libraries should consider OPAC redesign and functional performance improvement by using new web related technology. This paper studied and analyzed case studies of Web 2.0. Library 2.0, domestic and international web portals and libraries. Based on the research, this study implemented Open API and RSS reader and proposes its utilization plan as a next generation OPAC 2.0 service model which can improve OPAC search results and search service.

• Journal of Korean Library and Information Science Society
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• v.37 no.2
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• pp.317-343
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• 2006

The purpose of this study is to analyze the characteristics of OPAC displays of three children's libraries in Korea: Seoul Children's Library, Cheongju Miracle Library, and Yongsan Public Library. 'OPAC Display Guidelines( Draft)' Published by IFLA is used to examine the details of OPAC displays, and to suggest their improvement. Discussed are such topics as the features of basic and detailed search screens, the brief display of search results, the arrangement and full display of bibliographic records, and the use of terms and labels. All three libraries offer their users the same KOLAS' OPAC, only designed to serve general users rather than children, i.e., their primary user group. They show some weakness, and much improvement is urgently required to satisfy specifically the needs and information seeking behavior of children.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.23 no.2
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• pp.209-233
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• 2012

In this study in order to verify the overall information seeking behavior of the Web-based OPAC users, it was analyzed transaction log file for 7 years. Regarding Web-based OPAC information seeking behavior, it was studied from the perspective of information seeking strategy and information seeking failure. In search strategy, it was analyzed search type, search options, Boolean operator, length of search text, number of uses of word, number of use Web-based OPAC, number of use by time, by week day. Also, in search failure, search failure ratio, search failure ratio by search options, search failure ratio by Boolean operator were analyzed. The result of this study is expected to be utilized for OPAC system and service improvement in the future.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.33 no.1
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• pp.233-258
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• 2022

The purpose of this study is to identify elementary school teachers' needs for access points when searching for picture books to be used as teaching media, and suggest ways to improve DLS(Digital Library System) in school libraries. To achieve this purpose, the study examined the access points provided by OPAC(Online Public Access Catalog) systems in seven domestic and foreign libraries. In addition, it conducted an online survey with elementary school teachers, and a total of 220 responses were finally analyzed. It was found that the most needed access points were topic, grade/age, content, subject/chapter, and cross-curricula learning topics, etc. Based on the results, this study suggests providing the most needed access points in DLS, developing controlled vocabulary tools, and improving system functions or the interface to enhance accessibility to picture books.

• Journal of the Korean Society for Library and Information Science
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• v.40 no.1
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• pp.263-292
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• 2006

The purpose of this study is to analyze the characteristics of OPAC displays of the National Library of Korea and the Library of Congress. based on the 'OPAC Display Guidelines(Draft)' published by IFLA. Discussed are such topics as a basic search process and the headings list, a brief display and the arrangement of bibliographic records, a brief record and a full record, use of terms and labels. link between records, and organization of screens for the OPAC display. It is strongly suggested that when compared with the LC's OPAC, the OPAC display of the National Library of Korea should be much improved by following the recommendations of the 'OPAC Display Guidelines(Draft)'.

• Journal of the Korean Society for Library and Information Science
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• v.30 no.2
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• pp.167-188
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• 1996

The lack of an understanding of the characteristics and searching abilities of a specific user group in computer-based information systems in libraries hinders library and information science professionals in making the best decisions when designing, acquiring, and managing information systems. The objective of this study was to provide information on the characteristics and searching abilities of specific groups such as Korean college students & ones who study abroad, male & female, undergraduate & graduate students, etc. This study also has focused on the methods of loaming to use OPACs and non-user study. Questionnaire was administered to both Korean college students in the city of Taegu, Korea and students who study abroad in the state of Texas, US.A. 345 usable questionnaires were obtained and analyzed. These were analyzed using descriptive, inferential statistics, multiple correlation, and SPSS software. The. major findings of this study are: (1) There was a significant difference among specific student user groups except undergraduate and artiste-athlete students in the distribution of their knowledge about how to use OPACs: (2) There was a significant difference among specific groups in the means of their knowledge: (3) There was no significant difference among un. groups in the distribution of loaming method to use OPAC systems : (4) The correlation between the number of searching methods that the respondents knew in using OPACS and the amount of using computers (0.6635) is comparatively higher than my other correlation to the searching methods. Also, years of experience using computers, frequencies of computer use, and frequencies of OPAC use are comparatively higher than frequencies of library use and frequencies of manual card catalog un: (5) Frequencies of manual card catalog use have low negative correlations with the number of searching methods that the respondents knew in using OPACs: (6) Frequencies of manual card catalog use have little if any negative negative with OPAC and computer use. Conclusions are drawn from the findings in this paper, and recommendations an proposed when designing, adopting, or managing a new system. Topics fur future studies on the characteristics of OPAC systems and their use are also suggested.