Search (51 results, page 1 of 3)

  • × year_i:[1980 TO 1990}
  • × theme_ss:"Benutzerstudien"
  1. Kaske, N.K.: ¬A comparative study of subject searching in an OPAC among branch libraries of a university library system (1988) 0.03 
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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.
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  2. Gouke, M.N.; Pease, S.: Title searches in an online catalog and a card catalog : a comparative study of patron success in two libraries (1982) 0.00 
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  3. Beheshti, J.: ¬A cross-sectional study of the use of the library books by undergraduate students (1989) 0.00 
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  4. Beheshti, J.: ¬A longitudinal study of the use of library books by undergraduate students (1989) 0.00 
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  5. Kantor, P.B.: ¬A model for stopping behavior of the users of on-line systems (1987) 0.00 
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  6. Broadbent, E.: ¬A study of the use of the subject catalog, Marriott Library, University of Utah (1984) 0.00 
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  7. Hancock, M.: Subject searching behaviour at the library catalogue and at the shelves : implications for online interactive catalogues (1987) 0.00 
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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.
    Type
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  8. 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
    Type
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  9. Carlyle, A.: Matching LSCH and user vocabulary in the library catalog (1989) 0.00 
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  10. Pejtersen, A.M.: Design of a computer-aided user-system dialogue based on an analysis of users' search behaviour (1984) 0.00 
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  11. Saracevic, T.; Kantor, P.: ¬A study of information seeking and retrieving : pt.2: users, questions, and effectiveness (1988) 0.00 
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  12. Saracevic, T.; Kantor, P.: ¬A study of information seeking and retrieving : pt.3: searchers, searches, and overlap (1988) 0.00 
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  13. Markey, K.: Users and the online catalog : subject access problems (1986) 0.00 
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  14. Moore, C.W.: User reactions to online catalogs : an exploratory study (1981) 0.00 
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  15. Besant, L.: Early survey findings: users of public online catalogs want sophisticated subject access (1982) 0.00 
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  16. Markey, K.: Thus spoke the OPAC user (1983) 0.00 
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  17. Ostroff, D.; Shneiderman, B.: Selection devices for user of an electronic encyclopedia : an empirical comparison of four possibilities (1988) 0.00 
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    Abstract
    This study measured the speed, error rates, and subjective evaluation of arrow-jump keys, a jump-mouse, number keys, and a touch screen in an interactive encyclopedia. A summary of previous studies comparing selection devices and strategies is presented to provide the background for this study. We found the touch screen to be the fastest in time, the least accurate but the overall favorite of the participants. The results are discussed and improvements are suggested accordingly
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  18. Bishop, D.F.: ¬The CLR OPAC study : analysis of ARL user responses (1983) 0.00 
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  19. Klugman, S.: Failures in subject retrieval (1989) 0.00 
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  20. Janosky, B.: Online library catalog systems : an analysis of user errors (1986) 0.00 
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