• Journal of the Korean BIBLIA Society for library and Information Science
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• v.21 no.2
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• pp.145-157
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• 2010

University library users prefer the internet to OPAC, when they search for information. It is necessary to develop interface of OPAC that is nearly as convenient as the internet. This study provides users with University Library Toolbar which is one of the ways to implement Web 2.0, and proved that OPAC is also a convenient and useful searching tool by offering the toolbar. In addition, the causes of the preferences of the internet sites surveyed for this study and the point shown in the comparison between the internet and OPAC are going to be essential materials to implement more convenient OPAC and Library 2.0.

• Journal of the Korean Society for information Management
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• v.18 no.2
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• pp.7-30
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• 2001

The characteristics of the short document representatives and short queries of OPAC systems need the different ranking algorithms from IR systems. This study tested and analyzed the effectiveness of four sorting schemes and four ranking algorithms and the six effectiveness measurements for the ranked Boolean OPAC systems. The sorting by publication year was better but without significant difference. The cover density ranking was significantly better than the frequency-based ranking of the Fuzzy or DNF models. The simple effectiveness measurement based on the average rank of relevant documents retrieved was as good as the others and better than the precision P.

• Journal of the Korean Society for information Management
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• v.17 no.4
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• pp.187-206
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• 2000

This study is to analyrc the f~~nclional capdbiiities and interracc features or OPAC systems in twcnty-[ouracademc libraries in order to iuvesugale thc strongest pan and (he nveakesl or OPACs. For h e sludy, lllc checklistwas developed. TIE findmgs of thc sludy suegesl Lhat. among the leu RreE evaluated, '.Access Poinls." is lhe bcstdeveloped m a , whercas "Subject Scarc11 Aids" is the wekcst. Timefore, the OPAC system designers am1 librarianswill improvc the varlou sci~rch aids luncuonr and vocabulary browsiug function and will develop mil imlilen\ulcornerentvisual merracc ilnd hyper linkmg inechanism. hyper linkmg inechanism.

• Journal of Korean Library and Information Science Society
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• v.40 no.3
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• pp.157-180
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• 2009

This study implements library toolbar in order to improve the accessibility of OPAC in the library. The toolbar elements are extracted on the basis of the importance of functionality for OPAC. After comparing the toolbar implementation approaches, this study develops the library toolbar with these elements as the client-based application that can fully realized the functionality of the toolbar. The librarians evaluate the usability of toolbar very affirmatively. This study also summarizes the further functionalities to upgrade toolbar proposed by the librarian. Through deploying the upgraded toolbar, the user requirements have to be analyzed and realized with the user survey.

• Journal of the Korean Society for information Management
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• v.18 no.3
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• pp.265-284
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• 2001

The aim of this study was to discover the correlation between users cognitive style and their attitude towards evaluating the system. Postgraduate students cognitive styles were defined as Verbaliser/Imager and Wholist/Analytic, and the functionality and ease of learning features of a Web-based OPAC(Online Public Access Catalogue) system were evaluated using a combined evaluation methods: interviews for the preliminary survey, a questionnaire far the central data collection, and a psychometric approach for the judgement of students cognitive style using Ridings CSA(Cognitive Style Assessment) tool. Forty-four postgraduate student volunteers responded and data was analysed using SPSS(Statistical Package for Social Science) for Windows. The statistical analysis of each feature of the evaluation, the correlation between the variables, and the features were explored using Pearsons correlation coefficients(r). In exploring the effects of the cognitive styles of individuals, this study has failed to reveal a significant (P < 0.05) correlations in the interactive Web-based OPACs evaluation. It could be said that the contribution of cognitive styles to evaluating Web-based OPACs is likely to be weaker than that of non-cognitive (or demographic) variables.

• Proceedings of the Korean Society for Information Management Conference
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• 1999.08a
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• pp.225-228
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• 1999

도서관 OPAC의 온라인 도움말 시스템의 주요한 기능은 도서관 이용자들이 OPAC을 효과적이며, 효율적으로 사용하도록 돕는 것이다. 따라서 본 연구는 온라인 도움말의 기능을 평가하기 위하여 온라인 도움말 시스템의 연구문헌을 검토하여 온라인 도움말이 갖추어야 할 19개의 특징을 4개의 범주로 나누어 국내외 6개 대학도서관의 OPAC 시스템을 분석하였고, 이를 기준으로 웹 기반 OPAC의 온라인 도움말 시스템을 설계하였다.

• Journal of Korean Library and Information Science Society
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• v.47 no.1
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• pp.175-198
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• 2016

This study intends to implement a OPAC prototype for digital kids. To the end, this study applies prototyping techniques that design, evaluate and improve an early sample model. Included in this study are as follows: (1) design a conceptual model of new OPACs based on the information need analysis of digital kids, (2) implement a OPAC prototype with WordPress 4.2 version, (3) evaluate the prototype OPAC from the viewpoint of digital kids and children librarians, and finally, (4) suggest the improved model and implementational strategies for kid's OPAC. 6 fourth and fifth graders in the elementary school and 5 children librarians in public libraries participate in the final evaluation process.

• Proceedings of the Korean Society for Information Management Conference
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• 2011.08a
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• pp.53-58
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• 2011

빠르게 진화하는 상용 웹 사이트들의 검색 및 인터페이스 기술과 달리 도서관의 OPAC 시스템은 그 변화를 빨리 수용하지 못해 그 결과로 OPAC 사용에 있어 이용자들은 불편을 느끼고 있다. 이처럼 도서관 OPAC의 진보적인 개발이 시급한 실정에서 등장한 개념이 '차세대 OPAC'이다. 본 연구는 차세대 OPAC의 특성을 열거하여 핵심 항목으로 구성 된 체크리스트를 개발하고 향후 이를 이용하여 대학도서관에서의 차세대 OPAC 적용 현황을 평가 분석하는 도구로 사용하고자 하였다. 본 논문에서는 최종적인 연구의 초기단계로 차세대 OPAC에 관한 선행연구 분석을 통해 체크리스트 예비 항목을 작성하는 것으로 제한한다.

• Journal of the Korean Society for Library and Information Science
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• v.32 no.1
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• pp.69-96
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• 1998

The purpose of this study is to evaluate the quality of OPAC user interface in academic library setting, particularly on the basis of the user group's information searching behavior. Both survey and experimental methods were used for data collection. For the survey, 52 graduate students with various academic background were selected, and 8 out of 52 were chosen for the retrieval experiments using the SOLARS of the Seoul National University. The findings of this study suggest that both (unction and design of the SOLARS user interface should be improved to become a more user-friendly OPAC system.

• Journal of Korean Library and Information Science Society
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• v.38 no.3
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• pp.223-246
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• 2007

This study examines the retrieval efficiency of the FRBR-based bibliographic retrieval system. To do this, we built two experimental retrieval systems(a FRBR-based system constructed through FRBRizing algorithms and an OPAC-based retrieval system) using 387 music materials coded in a KORMARC format. Next, we set up six hypotheses and compared these two systems in terms of recall, precision, and retrieval time using 28 participants and a questionnaire with 12 queries. The results show that the average recall value of the FRBR-based system Is higher than that of the OPAC system regardless of query types and the average precision and retrieval time values of manifestation queries of the OPAC system is more efficient that those of the FRBR-based system. This study results can be used to customize digital library interfaces as well as to improve the retrieval efficiency of the bibliographic retrieval system.