Search (48 results, page 1 of 3)

  • × theme_ss:"Benutzerstudien"
  • × year_i:[2000 TO 2010}
  1. Havemann, F.; Kaufmann, A.: ¬Der Wandel des Benutzerverhaltens in Zeiten des Internet : Ergebnisse von Befragungen an 13 Bibliotheken (2006) 0.04 
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    Abstract
    Im Rahmen eines Projektseminars am Institut für Bibliotheks- und Informationswissenschaft der Humboldt Universität zu Berlin wurden an wissenschaftlichen Bibliotheken Benutzerbefragungen durchgeführt. Wir haben die Antworten auf eine Frage zum Informationsverhalten bibliotheksübergreifend statistisch ausgewertet. Neben Unterschieden zwischen Fächern stellen wir fest, dass sich das Informationsverhalten junger Bibliotheksnutzer oft erheblich von dem älterer Nutzer unterscheidet. Das Verhalten von Bibliotheksnutzern hinsichtlich der Häufigkeit der Nutzung von Bibliotheksangeboten und dem World Wide Web (WWW) ist vorwiegend ähnlich. Nutzer mit konträrem Verhalten sind unterrepräsentiert gegenüber denen, die beides, Bibliothek und Web, oft oder beides wenig nutzen.
  2. Wagner-Döbler, R.: Was taugen Print und Online-Ausgaben? : Informationsmittel im direkten Usability-Vergleich (2004) 0.02 
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    Abstract
    Unsere Medienwelt ist vom Nebeneinander verschiedener Ausgabeformen derselben Inhalte geprägt. Es herrscht jedoch Mangel an Untersuchungen, welche die "usability" von Printmedien mit der von Online-Medien direkt vergleichen. Im Rahmen eines Projektseminars am Institut fürBibliothekswissenschaft der Humboldt- Universität Berlin wurde die Usability von gedruckten und von Online-Informationsmitteln anhand heuristischer Kriterien verglichen. Als Benutzungsaspekte bündelndes und messbares Kriterium wurde der Zeitbedarf zur Beantwortung einfacher Testaufgaben ermittelt, die sowohl anhand der Print- als auch anhand der Online-Version je eines Versandhauskatalogs und eines Vorlesungsverzeichnisses zu beantworten waren. Die Prognosen sowie die Ergebnisse dreier Gruppen (Bibliothekswissenschaft-Studenten, Informatik-Studenten und Laien) wurden verglichen. Der Zeitbedarf für die Nutzung der Printmedien wurde von den Bibliothekswissenschaft- und Informatik-Studenten zu hoch prognostiziert, für Online-Medien zu niedrig. Der tatsächliche Zeitbedarf bewegte sich in ähnlicher Größenordnung bei beiden Versionen des Vorlesungsverzeichnisses. Bei der Nutzung des Versandhauskatalogs hingegen war der Zeitbedarf online doppelt so hoch wie beim Printmedium. Zusätzlich war bei Nutzung der Online-Version die Hälfte der Antworten falsch. Der Grad an subjektiver Unsicherheit über die Richtigkeit der Antworten wurde, damit übereinstimmend, bei der Online-Version deutlich höher eingeschätzt als beim Printmedium. Die Testergebnisse derdrei Gruppen unterschieden sich beim Versandhauskatalog nur wenig. Die Ergebnisse werden als Hinweis auf schlechten Entwicklungsstand der Usability von Online-Medien gedeutet. Die Usabilityvon konventionellen Medien scheint von "computernahen" Nutzern unterschätzt zu werden. Bei der Nutzung von Online-Medien wird in derLiteratur oft hohe subjektive Unsicherheit über die Angemessenheit oder Richtigkeit der Suchresultate berichtet, die hier bestätigt wird und zugleich mit einem hohen Anteil objektiv falscher Antworten korrespondiert. Es wird dafür plädiert in die Usability-Forschung konventionelle Medien einzubeziehen und stärker interdisziplinär vorzugehen.
  3. Poll, R.: Informationsverhalten und Informationsbedarf der Wissenschaft : Teil 1 der Nutzungsanalyse des Systems der überregionalen Literatur- und Informationsversorgung (2004) 0.01 
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    Abstract
    Die Deutsche Forschungsgemeinschaft fördert in 23 Universitätsbibliotheken (Sondersammelgebieten), 47 Spezialbibliotheken und 3 zentralen Fachbibliotheken ein System der überregionalen Literatur- und Informationsversorgung. Dieses System kooperativer umfassender Sammlung weltweit vorhandener wissenschaftlicher Literatur sollte erstmals aus der Nutzerperspektive evaluiert werden. Es sollten Form und Umfang der tatsächlichen wie der potentiellen Nutzung sowie jetzige und zukünftige Bedarfe ermittelt werden, und zwar beispielhaft in den Fächern Anglistik, Betriebswirtschaft, Biologie, Geschichte und Maschinenbau. Das Projekt wurde 2002/2003 von der Universitäts- und Landesbibliothek Münster zusammen mit infas-Institut für angewandte Sozialwissenschaft GmbH durchgeführt. Diese Veröffentlichung zeigt den ersten Teil der Ergebnisse, die das Informationsverhalten von Wissenschaftlern und Wissenschaftlerinnen in den fünf Fächern betreffen.
  4. Scholle, U.: Kann ich Ihnen behilflich sein? : Erhebung am zentralen Auskunftsplatz der ULB Münster (2000) 0.00 
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    Date
    22. 1.2000 17:52:11
  5. Branch, J.L.: Investigating the information-seeking process of adolescents : the value of using think alouds and think afters (2000) 0.00 
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    Source
    Library and information science research. 22(2000) no.4, S.371-382
  6. Yoo, E.-Y.; Robbins, L.S.: Understanding middle-aged women's health information seeking on the web : a theoretical approach (2008) 0.00 
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    Date
    9. 2.2008 17:52:22
  7. Lorigo, L.; Haridasan, M.; Brynjarsdóttir, H.; Xia, L.; Joachims, T.; Gay, G.; Granka, L.; Pellacini, F.; Pan, B.: Eye tracking and online search : lessons learned and challenges ahead (2008) 0.00 
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  8. Gremett, P.: Utilizing a user's context to improve search results (2006) 0.00 
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    Date
    22. 7.2006 18:17:44
  9. Schneider, R.: OPACs, Benutzer und das Web (2009) 0.00 
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    Date
    22. 2.2009 18:50:43
  10. Moulaison, H.L.: OPAC queries at a medium-sized academic library : a transaction log analysis (2008) 0.00 
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    Date
    10. 9.2000 17:38:22
  11. Tombros, T.; Crestani, F.: Users' perception of relevance of spoken documents (2000) 0.00 
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  12. Thissen, F.: Verloren in digitalen Netzen : Nutzertests zur Optimierung der Bedienerfreundlichkei eines Online-Katalogs (2002) 0.00 
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  13. Agosto, D.E.: Bounded rationality and satisficing in young people's Web-based decision making (2002) 0.00 
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    Abstract
    This study investigated Simon's behavioral decisionmaking theories of bounded rationality and satisficing in relation to young people's decision making in the World Wide Web, and considered the role of personal preferences in Web-based decisions. It employed a qualitative research methodology involving group interviews with 22 adolescent females. Data analysis took the form of iterative pattern coding using QSR NUD*IST Vivo qualitative data analysis software. Data analysis revealed that the study participants did operate within the limits of bounded rationality. These limits took the form of time constraints, information overload, and physical constraints. Data analysis also uncovered two major satisficing behaviors-reduction and termination. Personal preference was found to play a major role in Web site evaluation in the areas of graphic/multimedia and subject content preferences. This study has related implications for Web site designers and for adult intermediaries who work with young people and the Web
  14. Large, A.; Beheshti, J.; Rahman, T.: Design criteria for children's Web portals : the users speak out (2002) 0.00 
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    Date
    2. 6.2005 10:34:22
  15. Fidel, R.: ¬The user-centered approach (2000) 0.00 
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    Date
    22. 9.1997 19:16:05
  16. Bilal, D.: Children's use of the Yahooligans! Web search engine : III. Cognitive and physical behaviors on fully self-generated search tasks (2002) 0.00 
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    Abstract
    Bilal, in this third part of her Yahooligans! study looks at children's performance with self-generated search tasks, as compared to previously assigned search tasks looking for differences in success, cognitive behavior, physical behavior, and task preference. Lotus ScreenCam was used to record interactions and post search interviews to record impressions. The subjects, the same 22 seventh grade children in the previous studies, generated topics of interest that were mediated with the researcher into more specific topics where necessary. Fifteen usable sessions form the basis of the study. Eleven children were successful in finding information, a rate of 73% compared to 69% in assigned research questions, and 50% in assigned fact-finding questions. Eighty-seven percent began using one or two keyword searches. Spelling was a problem. Successful children made fewer keyword searches and the number of search moves averaged 5.5 as compared to 2.4 on the research oriented task and 3.49 on the factual. Backtracking and looping were common. The self-generated task was preferred by 47% of the subjects.
  17. Kim, J.: Describing and predicting information-seeking behavior on the Web (2009) 0.00 
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    Date
    22. 3.2009 18:54:15
  18. Wildemuth, B.M.: Effective methods for studying information seeking and use : Introduction and overview (2002) 0.00 
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    Date
    20. 1.2003 9:37:22
  19. Su, L.T.: ¬A comprehensive and systematic model of user evaluation of Web search engines : Il. An evaluation by undergraduates (2003) 0.00 
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    Date
    24. 1.2004 18:27:22
  20. Aula, A.; Nordhausen, K.: Modeling successful performance in Web searching (2006) 0.00 
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    Abstract
    Several previous studies have measured differences in the information search success of novices and experts. However, the definitions of novices and experts have varied greatly between the studies, and so have the measures used for search success. Instead of dividing the searchers into different groups based on their expertise, we chose to model search success with task completion speed, TCS. Towards this goal, 22 participants performed three fact-finding tasks and two broader tasks in an observational user study. In our model, there were two variables related to the Web experience of the participants. Other variables included, for example, the speed of query iteration, the length of the queries, the proportion of precise queries, and the speed of evaluating result documents. Our results showed that the variables related to Web experience had expected effects on TCS. The increase in the years of Web use was related to improvement in TCS in the broader tasks, whereas the less frequent Web use was related to a decrease in TCS in the fact-finding tasks. Other variables having significant effects on TCS in either of the task types were the speed of composing queries, the average number of query terms per query, the proportion of precise queries, and the participants' own evaluation of their search skills. In addition to the statistical models, we present several qualitative findings of the participants' search strategies. These results give valuable insight into the successful strategies in Web search beyond the previous knowledge of the expert-novice differences.

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