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  • × theme_ss:"OPAC"
  1. Markey, K.: Alphabetical searching in an online catalog (1989) 0.05
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    Abstract
    An experimental online catalog was developed that provided searchers with several different subject searching strategies. Analyses of retrieval test data suggest that searchers expect alphabetical searches to provide lists of assigned subject headings conceptually related to their topics of interest. System designers can now respond to their expectation by incorporating LCSH-mr in online catalogs
  2. Dwyer, J.: How deep is your database? : the OCLC pilot project on contents enrichment (1991) 0.05
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    Abstract
    3 ways to improve access to monographs are additional subject headings, analytic added entires and contents notes. Focuses on California State University. Describes the project, the CSU-Chico results and advices upon when to add contents notes
  3. Cochrane, P.A.: Improving LCSH for use in online catalogs : exercises for self-help with a selection of background readings (1986) 0.05
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    LCSH
    Subject headings, Library of Congress / Problems, exercises, etc
    Subject
    Subject headings, Library of Congress / Problems, exercises, etc
  4. Jong, M. de: "Bij worm had ik een keer de politiek eraan hangen" : bibliotheek Amstelveen enthousiast over Kid's Catalog (1998) 0.05
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    Abstract
    Amstelveen Public Library in the Netherlands introduced the online Kid's Catalog in 1997 to enable young users to access the library's catalogue. The system was developed in the United States and has been translated into Dutch for use in Amstelveen. The system enables users to access the catalogue through a menu of icons or by typing in author, title and subject headings. The system can recognise typing errors and offer corrected headings. The system is extremely popular both with children and adults
  5. Allen, B.: Improved browsable displays : an experimental test (1993) 0.05
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    Abstract
    Browse searching of online catalogs and electronic indexes is a popular means of retrieving information, but some subject heading lists are so extensive that browsing them can be difficult and time-consuming. This resaerch tested one way of presenting a browse interface to reduce the amount of scanning of subject headings required. It found that a hierarchical presentation of headings reduced the amount of scanning required by more than 50% without any reduction in the effectiveness of the search. Better browsable displays of this sort can improve the efficiency of searching but appear not to alter effectivenenss
  6. Beaulieu, M.; Payne, A.; Do, T.; Jones, S.: ENQUIRE Okapi project (1996) 0.04
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  7. Broadbent, E.: ¬The online catalog : dictionary, classified, or both? (1989) 0.04
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    Abstract
    The main purpose of the study was to determine if the online catalog can function both as a dictionary and classified catalog without requiring additional time or intellectual effort on the part of the cataloger. A total of 1842 MARC bibliographic records listed in the 370-379 classified section of American Book Publishing Record were studied. These records displayed 2735 subject headings. Of these, 1491 (55%) had a Library of Congress classification number linked to them. An alphabetical and classified index was created using primary subjects and their related classification numbers. While such an index could be a useful browsing device if integrated into an online catalog, creating a bona fide classified catalog would require assigning classification numbers to the secondary subject headings.
  8. Massicotte, M.: Improved browsable displays for online subject access (1988) 0.04
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    Abstract
    A browsable display under a specific search term can often frustrate users if the display is carried over several screens. This article investigates methods of compressing headings identified by MARC subfield codes to reduce the size of browsable displays. Arguments are presented that a more efficient system design can be achieved by machine sorting of subdivisions via a conceptual, rather than alphabetical, approach. The author concludes that system architecture for browsable subject index displays must be redesigned to relieve the user of the burden of data organization
  9. Wittenbach, S.A.: Building a better mousetrap : enhanced cataloguing and access for the online catalog (1992) 0.04
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    Abstract
    Explores the many options available for embellishing the basic USMARC bibliographic record; the impact for patron access and collection use; improved system features; the economic impact on the cataloguing process; and future prospects for enhanced cataloguing and bibliographic access. Discusses some of the typical enhancements that may be applied: additional subject headings; tables of contents; summaries, abstracts or contents notes; classification numbers
  10. Slack, F.: Subject searching on OPACs : problems and help provision (1991) 0.04
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    Abstract
    The need for subject access on OPACs has been widely recognised since early development in the USA. Many OPACs in UK academic libraries provide subject access to catalogue records, mostly through search strategies such as keyword access or subject headings searches. However, users do find subject searching more difficult than known-item searching so most OPAC systems provide help screens to assist users in their searches
  11. Loarer, P. le: OPAC: opaque or open, public, accessible and co-operative? : some developments in natural language processing (1993) 0.04
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    Abstract
    Current OPAC show their weakness in terms of ease of use and comprehension of user requests, and more generally in man/machine dialogue. Most OPAC searches are for subjects and these give the word results. Natural language processing techniques exist to reduce these difficulties. In France, natural language processing has been used to access the yellow pages (headings) of the French phone directory and the telematics services directory; examples are included. No doubt the future library systems will use these techniques to make the new OPACs really open, public, accessible and co-operative (user-friendly)
  12. Bussière, H.: ¬La formation des utilisateurs à la consultation des catalogues en ligne : ARCHIMEDE, BADADUQ et MUSE (1992) 0.04
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    Abstract
    Outlines the difficulties experienced by users in the searching of OPACs. Describes visits to 3 scientific libraries in Montreal which provide OPACs: the library of the Ecole Polytechnique which offers ARCHIMEDE; the scientific library of the University of Quebec which offers BADADUQ; and the Physical Sciences and Engineering Library of McGill University which offers MUSE. Compares user training programmes offered by each of these libraries and discusses the librarians' responses to a questionnaire on user training under the following headings: mode of learning; teacher participation; marketing policy; and statistics of OPAC usage
  13. Jamieson, A.J.; Dolan, E.; Declerck, L.: Keyword searching vs. authority control in an online catalog (1986) 0.04
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    Abstract
    Presents the results of research carried out to discover whether or not the ability to search an online catalogue using keywords is a reasonably alternative to a built-in cross reference structure for variant forms. MARC records were checked against LoC authorities for references from non-preferred headings. All keywords in these references were then compared, and matched, when possible, with keywords in any MARC fields
  14. Bergen, C. van; Mastenbroek, O.: Wat wil de gebruiker? : onderwerpsontsluiting bij de Universiteitsbibliotheek Utrecht (1995) 0.04
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    Abstract
    A survey of catalogue use in 1993 at Utrecht University in the Netherlands showed considerable dissatisfaction with the online catalogue's subject search facilities. Of those who used subject searching 64% preferred subject headings against only 2% who chose classification schedules. Library users make little use of the existing facilities for assistance and leaflets which are available in the library. It has, therefore, been decided to provide a programme of instruction in library use and to move towards a unified system of subject access to the library's catalogue
  15. Chan, L.M.: ¬A subject cataloging code? (1989) 0.04
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    Abstract
    Contribution to a thematic issue devoted to a subject control in on-line catalogues. Examines whether a subject cataloguing code is, at this point in time, necessary or economically feasible, as well as questioning who will develop such a code and if experiences with AACR2 should make librarians fearful or hopeful about similar work with subject headings.
  16. Sandlian, P.: Rethinking the rules (1995) 0.04
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    Abstract
    Rules regarding cataloguing, subject headings, the way information in bibliographic records is organised and the catalogue's interface, or the way the screen is set up, are barriers to the use of online catalogues by children Describes the background to and implementation of a project to create a child orientation catalogue with a graphical user interface, or one that relies on pictures instead of text, within Denver Public Library in Colorado. Now called the Kid's catalog and commercially available from the Colorado Alliance of Research Libraries Co., the catalogue's software acts as a front end to a library's regular catalogue
  17. Verwer, R.: Waar is W.F. Hermans? : het bedrog van de OPC (1996) 0.04
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    Abstract
    A study of the online catalogues of major academic libraries and databases in the Netherlands shows considerable variation in the form of name used for the author W.F. Hermans. The problem lies with a lack of authority control in headings used in the Dutch national union Pica catalogue. Reactions from 2 cataloguers point to the difficulties in maintaining catalogues in the face of reduced funding and to the important role played by the Pica project in improving library services and reducing cataloguing backlogs
  18. Lee, Y.-R.: ¬A study on the conditions of using OPAC access points and subject searching by users (1997) 0.04
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    Abstract
    Uses the results of various user studies to offer some insight into user behaviour in connection with OPAC access points and to explore conditions for subject searching, the difficulties involved and the matching of queries to subject headings. Sums up suggestions for the improvement of subject access to OPACs
  19. Crow, R.W.; Starbird, R.F.: Easier said than done : practical considerations in user interface design (1992) 0.04
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    Abstract
    User interfaces for CD-ROM products in the academic library environment must accomodate a variety of user and task profiles. Discusses the practical considerations that govern the implementation of interface design principles for such electronic data bases under the following headings: redesign goals; interaction style; menu design and implementation; system structure and the search paradigm; basic system operation and screen layout; simplified features; integrated novice and expert mode; redesign constraints; and hardware and software constraints
  20. Watanabe, T.: ¬An experimental OPAC system using NDC8 to improve subject access (1994) 0.04
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    Abstract
    Description of an attempt to improve OPAC subject access at Kobe University Library using Nippon Decimal Classification, 8th ed. (NDC8). Examines the theoretical aspects of using a classification for subject searching, then explains the Kobe system. Using the NDC8 machine-readable data file, a database was created for the OPAC, incorporating class numbers and subject headings. Difficulties arise from subdivisions and the structure of NDC8 itself, but it is an important area for development

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