Search (18 results, page 1 of 1)

  • × theme_ss:"Benutzerstudien"
  • × theme_ss:"OPAC"
  • × year_i:[1980 TO 1990}
  1. Broadbent, E.: ¬A study of the use of the subject catalog, Marriott Library, University of Utah (1984) 0.03
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    Source
    Cataloging and classification quarterly. 4(1984) no.3, S.75-83
  2. Hancock, M.: Subject searching behaviour at the library catalogue and at the shelves : implications for online interactive catalogues (1987) 0.03
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    Abstract
    Searching behaviour in a university library is studied using a holistic approach, encompassing the use of bibliographic tools and shelf browsing. The present study is designed as the first half of a 'before and after' study to permit the evaluation of the impact of a future online catalogue on users' searching behaviour. A combined methodology was devised: searchers were encouraged to talk aloud during their search, and this information, together with some probing and real time expert interpretation, enabled the experimente to record the searching activity on a highly structured observation form. The study reveals the extent of subject searching activity, and suggests that this may have been underestimated in previous studies. The analysis of expressed topics, search formulation strategy and documents retrieved reveals the adaptive nature of the subject searching process, whereby the user adapts to the structure of the available tools. The information retrieval task in a traditional library system is tailored by the system to a single, one dimensional, sequential process. It is suggested that a major obstacle to subject searching effectiveness may lie in the lack of interaction between the different possible approaches in the searching process: the indexing language, the classification, and the titles. It is to be hoped that a future online searching environment will encourage a more truly interactive approach to subject searching.
  3. Lewis, D.W.: Research on the use of online catalogs and its implications for library practice (1987) 0.01
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    Abstract
    Research on the use of online catalogs has challenged many assumptions about the behavior of library users. It has demonstrated that many of the patterns of behavior observed in the use of card catalogs were adaptions to the card technology; often behavioral patterns are different in an online environment. These studies have indicated that patrons prefer online catalogs and use them more, but they also show inadequacies in bibliographic practice, especially in the area of subject access.
  4. Dickson, J.: ¬An analysis of user errors in searching an online catalog (1984) 0.01
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    Source
    Cataloging and classification quarterly. 4(1984) no.3, S.19-38
  5. Kaske, N.K.: ¬A comparative study of subject searching in an OPAC among branch libraries of a university library system (1988) 0.01
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    Abstract
    The degree of variability in the percentage of subject searching in an online public access catalog (OPAC) among branch libraries of one university was studied. A full semester's worth of transactions was analyzed, not sampled. The time units used were hour of the day, day of the week, and week of the semester. The findings show that subject searching varies from a low of 22% to a high of 74% over the hours of a day. Variability for the days of the week ranged from 17% to 64%, and for the weeks of the semester variability ranged from 12% to 70%. Valuable management information on the utilization of the OPAC within each brach library and among all the branch libraries is provided through numerous charts and graphs.
  6. Wiberley, S.E.; Daugherty, R.A.: Users' persistence in scanning lists of references (1988) 0.01
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    Footnote
    Vgl. auch Micco, M. in: Cataloging and classification quarterly 13(1991)
  7. Klugman, S.: Failures in subject retrieval (1989) 0.01
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    Source
    Subject control in online catalogs. Ed.: R.P. Holley
  8. Kern-Simirenko, C.: OPAC user logs : implications for bibliographic instruction (1983) 0.01
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  9. Markey, K.: Users and the online catalog : subject access problems (1986) 0.00
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  10. Besant, L.: Early survey findings: users of public online catalogs want sophisticated subject access (1982) 0.00
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  11. Markey, K.: Subject searching in library catalogs : Before and after the introduction of online catalogs (1984) 0.00
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  12. Carson, E.: OPACs: the user and subject access (1985) 0.00
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  13. Pulis, N.V.; Ludy, L.E.: Subject searching in an online catalog with authority control (1988) 0.00
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    Abstract
    Results of previous catalog research indicate that users want improvements in subject searching features, noting display of terms related to their topics as especially desirable. This study reports the findings of an examination of subject searchers' use of such a feature provided through online display of authority information from Library of Congress Subject Headings for terms used in the catalog. It was found that, of the terms entered by users, 78 percent were an exact or close match to catalog terms, and another 14 percent matched "see" references. Although additional information was available for nearly half of the searches performed, it was used in only 28 percent of these cases. It is suggested that improvements in subject searching features are needed to encourage use of available syndetic structures
  14. Cochrane, P.A.; Markey, K.: Catalog use studies : since the introduction of online interactive catalogs, impact on design for subject access (1983) 0.00
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  15. Matthews, J.R.; Lawrence, G.S.; Ferguson, D.K.: Using online catalogs : a nationwide survey, a report of a study sponsored by the Council on Library Resources (1983) 0.00
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    LCSH
    Online bibliographic searching
    Subject
    Online bibliographic searching
  16. Croucher, C.: Problems of subject access : user studies and interface design (1986) 0.00
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    Abstract
    A research project at Middlesex Polytechnic is examning the problems of subject access in an OPAC. A series of user studies have been carried out which examined students' use of existing catalogue facilities, which in turn led to the experimental evaluation of various interface designs for an online catalogue. The experiments were primarily concerned with the effect of the following variables on the speed and accuracy of retrieval of specific items, the use of colour, the speed of presentation of information, the amount of information on a screen, the paging and scrolling of information, the position of a sought item within a list
  17. Senzig, D.: Library catalogs for library users (1984) 0.00
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    Abstract
    As librarians evaluate the capabilities of online catalogs they will need to consider what information users expect to find in the catalog and what characteristics of the catalog will help users in their search for this information. The findings of studies concerning how library users actually use card catalogs and online catalogs, and their successes and failures in that use, can be used to determine the capabilities that are needed in anonline catalog to satisfy the bibliographic requests of library users
  18. Borgman, C.L.: Why are online catalogs hard to use? : lessons learned from information-retrieval studies (1986) 0.00
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    Abstract
    Research in user behavior on online catalogs is in its early stages, but preliminary findings suggest that users encounter many of the same problems identified in behavioral studies of other types of bibliographic retrieval systems. Much can be learned from comparing the results of user behavior studies on these two types of systems. Research on user problems with both the mechanical aspects and the conceptual aspects of system use is reviewed, with the conclusion that more similiratiy exists across types of systems in conceptual than in mechanical problems. Also discussed are potential sources of the problems, due either to individual characteristics or to system variables. A series of research questions is proposed and a number of potential interim solutions ae suggested for alleviating some of the problems encountered by users of information systems