Search (341 results, page 1 of 18)

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Source

OPACs and beyond: Proc. of a joint meeting of the British Library, DBMIST and OCLC

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Source

OPACs and beyond: Proc. of a joint meeting of the british Library, DBMIST and OCLC

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Source

Die Klassifikation und ihr Umfeld: Proc. 10. Jahrestagung der Gesellschaft für Klassifikation, Münster, 18.-21.6.1986. Hrsg.: P.O. Degens

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Abstract

OPACs in an increasing number of libraries are now available using the Joint Academic Network (JANET). Access has tended to be obstructed, for the casual user, by the lengthy JANET addressing codes and varying log-on procedures required by each library system. Discribed how a communications and menu package on an IBK/PC can be used so that by merely pressing cursor control, return and escape keays, any user can gain access to any one of over 40 OPACs linked to JANET

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Abstract

The PACLink Project grew out of discussions between a joint association of libraries and computing centres among the 4 State University of New York (SUNY) and SUNY central administration to develop a cooperative OPAC based on NOTIS. Presents a functional description of PACLink, notes the Z39.50 search and display format and the PACLink interloans module

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Abstract

The Hyperlib project, which is a joint, EC-funded project, between the libraries of Antwerp and Loughborough universities, aims to investigate the opportunities for a hypertext-structured catalogue at Antwerp University. Essential to the project was a survey of user requirements. Because of time constraints, however, it proved impossible to develop a full hypertext-structured database. As a result of the project a redesigned OPAC will be implemented in Spring 95, which will include individual journal article sand the opportunity to create personalised menu-structures

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Abstract

The National Library of France (BNF) database, BN-OPALINE, initially developed for computerising the specialised departments' catalogues, has functioned since 1996 as the database for all BNF documents. Accessible on the Internet, notices are in INTERMARC format, with over 500.000 references covering specialised documents, microforms and documents acquired by partner libraries. Eventually BNF-OPALINE will be integrated into the future BNF multimedia information system and form part of the French joint catalogue

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Footnote

Adapted version of a presentation to the Joint Australian Library and Information Catalogues and UCRLS Meeting, Melbourne, Victoria, Australia, 16 Jul 1998

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Abstract

Assigned topical and geographic subject headings from a sample of 3.814 bibliographic records in the University of Michigan Library's catalog were analyzed to determine the degree of match with LCSH, 10th edition and to idetify types of heading conflicts that lend themselves to automatic subject authority control. The findings showed a surprising degree of agreement: 44 percent of headings matched LCSH 10th completely. For headings without subdivisions, the match was 88,4 percent. Since 93,6 percent of the topical subdivisions that did not match LCSH were found on the free-floating lists, some consideration should be given to developing a machine-readable file of free-floating subdivisons for matching purposes.

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Abstract

Key problems of subject searches in online public access catalogs are that too much may be retrieved and that the display may be arranged in what appears to be an unintuitive and unhelpful manner. A study was undertaken on one large database to determine how often the display of a subject and its modifications and subdivisions extended over more than two screens and what the results on display would be of compressing geographic subdivisions and other modifications. The study then addressed the question of how often the display of a term and its subdivisions was interrupted by the appearance in the display of inverted headings, phrase headings, and headings with parenthetical qualifiers

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Abstract

Central to subject searching is the match between user vocabulary and the headings from Library of Congress Subject-Headings (LCSH) used in a library catalog. This paper evaluates previous matching studies, proposes a detailed list of matching categories, and tests LCSH in a study using these categories. Exact and partial match categories are defined for single LCSH and multiple LCSH matches to user expressions. One no-match category is included. Transaction logs from ORION, UCLA's online Information system, were used to collect user expressions for a comparison of LCSH and user language. Results show that single LCSH headings match user expressions exactly about 47% of the time; that single subject heading matches, including exact matches, comprise 74% of the total; that partial matches, to both single and multiple headings, comprise about 21% of the total; and that no match occurs 5% of the time.

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Abstract

This short guide is intended to help librarians and OPAC system designers to make decisions about the design of displays of more than one subject heading. The authors stress that they offer guidance rather than standards or prescriptions; their clear prose is cautious and even the number of recommendations is limited. A 12-page introduction contrasts the "structural approach" and "strict alphabetical approach" to filing, showing examples and stating arguments for each. 7 chapters cover display of subdivisions, inverted headings, display of qualified headings, arrangement of numerical headings, display of subjects interfiled with names and titles, punctuation and messages to the user. Within each chapter, questions involving choices between two or more approaches are followed by brief statements of current practice (LC rules, ALA rules, and systems in existing OPACs) extensive examples demonstrating such choices, and arguments for and against each. The authors warn against ever assuming that the user knows the needed subject headings, and acknowledge that the best OPAC design often depends on the setting and on the user's understanding of the system. Although the topic may be beyond the purview of the authoring committee, the discussion here makes one yearn for interactive OPACs that can analyze the user's needs and provide appropriate guidance to whatever system is adopted

Editor

Subcommittee on the Display of Subject Headings in Subject Indexes in OPACs, Subject Analysis Committee, Cataloging and Classification Section, ALCTS, ALA

LCSH

Subject headings, Library of Congress / Evaluation

Subject

Subject headings, Library of Congress / Evaluation

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Abstract

The UK's National Art Library at the Victoria & Albert Museum joined the Online Computer Library Center (OCLC) in 1986 and from 1987 to 1990 created catalogue records in MARC format on the OCLC database pending the introduction of a stand-alone computer system. the library now employs a Dynix microcomputer system for cataloguing, acquisitions, circulation, serials control, community information and the provision of online public access catalogues (OPAC). Describes library records currently available online, progress in retrospective conversion, internal networking and plans for external networking via the Joint Academic Network (JANET), and the provision of bibliographic and image databases in CD-ROM and videodisc format. Future developments will include interface between museum/image and library/documentation databases

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Abstract

Reports briefly on the development, by the Consortium of University Research Libraries (CURL) of the CURL OPAC, or COPAC. COPAC is seen as the partial realization of the aims of earlier projects, such as the UK Libraries Database System (UKLDS). Although COPAC was not designed as a union catalogue, it was a natural next step for CURL to obtain funding from the Joint Information Services Committee (JISC), following the Follett Report, to use the database to create a union catalogue. The work is being undertaken at Manchester University, which has held the CURL database since its creation, and the version was launched on 30 Apr 96

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Abstract

To access a remote catalogue the searcher can use the Z39.50 standard as interface, which requires appropriate software; or for databases accessible on the WWW use a common gateway interface. The multibase access advantage of Z39.50 can also be obtained through a Web navigator by inserting a Web server/Z39.50 client software connector: this can be located either on the search site, in an intermediary position or on the database site, so determining the range of databases which can be searched. Z39.50 also offers interesting possibilities for joint and local cataloguing: multibase searching can equally be realised on intranets

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Abstract

This paper recognizes the limitations of the existing file of Library of Congress authority records for subject heading assignment and validation. It makes recommendations for a new machine-readable file of authority records for topical subdivisions and for enhancements to the existing subject authority file. The recommended changes qould enable online systems to assist in subject heading formulation and verify, with limited assistance by human intermediaries, the individual components of subdivided headings. A study of subdivided subject headings in a large bibliographic database forms the basis of the recommendations

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Abstract

This paper suggests that the cataloging community may be setting its goals too low in its approach to online subject access. Truly effective subject retrieval for online catalog users will not be possible until the Library of Congress gives a higher priority to consistency in the assignment of subject headings. In recognition of the intellectual complexity of LCSH, the paper proposes the appointment of subject specialists to monitor the assignment of subject headings at the Library of Congress.