Search (37 results, page 2 of 2)

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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.

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Date

22. 7.2006 18:17:44

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Date

22. 2.2009 18:50:43

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Footnote

Ergebnisse eines Seminars im SS 2003

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Year

2003

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Date

10. 9.2000 17:38:22

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Content

1. Introduction Significant research in the design and use of online public access catalogues (OPACs) has been conducted by professionals in library and information science (Borgman, 1996; Carlyle, 2001, Carlyle & Timmons, 2002; Hancock, 1987). However, only limited research has addressed actual library user interaction with and perceptions of online catalogue displays and bibliographic elements (Abrera, 1986; Luk, 1996; Markey, 1983). Retrieval systems, specifically online library catalogues, should consider user perceptions and expectations as an important aspect of design and implementation for improved catalogue efficiency (Hert, 1996). Therefore, it is necessary to examine the online catalogue from a user perspective to determine if it is currently succeeding in meeting the bibliographic needs of users in terms of description, display, navigation, and to provide principles for design of future OPACs. A study seeking to understand better how public library users interact with general OPAC displays and the more specific displays of bibliographic information was conducted in 2003. Research questions focused an 1) user perceptions of the OPAC, 2) the elements in a bibliographic display standing out as most important in selection and identification, and 3) user feedback an the process of using the OPAC. The purpose of this paper is to highlight the larger study findings having implications for future research and online catalogue design.

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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

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Date

2. 6.2005 10:34:22

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Date

22. 9.1997 19:16:05

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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.

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Date

22. 3.2009 18:54:15

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Content

"Als Generation @ werden Kinder und Jugendliche in der Öffentlichkeit bereits gefeiert, insbesondere Marketing und Werbung schwärmen vom geschickten, unermüdlichen Surfen im WWW, von kinderleichter Handhabung des Equipments, spielerischem Edutainment und spannenden Verlockungen des digitalen Lernens, und zwar schon für die Kleinsten ab dem Kindergartenalter. Mehrheit noch offline Imposant sind auch die quantitativen Daten zur Haushaltsausstattung und PC- beziehungsweise Internetnutzung, vor allem ihre Wachstumsraten, die die Studie von Christine Feil und Co-Autoren referiert und miteinander abgleicht. Susanne Richter (S. 18) hingegen weiß nichts von ihrer Existenz, zumal Angaben aus kommerziellen Kontexten meist zu Obertreibungen neigen. Seriöser sind die Angaben des so genannten Medienpädagogischen Forschungsverbundes Südwest, der seit 1999 die Studie »Kinder und Medien« (»KIM-Studie«) durchführt, 2003 zum vierten Mal. Danach hatten 57 Prozent der bundesdeutschen Haushalte mit 6- bis 13-jährigen Kinder Internet zu Hause (Feil S. 15),42 Prozent der 6-bis 13-Jährigen besuchen hin und wieder das Internet, nur etwa gut zwölf Prozent sind täglich oder mehrmals in der Woche nach Schätzungen durchschnittlich zwischen einer halben und einer Stunde im Netz, werden aber von kommerzieller Seite bereits als »Heavy User« apostrophiert (Feil S. 18). Etwa bei zehn, elf Jahren lag 2003/2004 das Einstiegsalter für das Internet, bei Mädchen und bei Kindern aus niedrigeren Einkommens- und Sozialschichten etwas später. Offenbar haben die inzwischen - auch schon im Primarbereich - gut ausgestatten Schulen noch »kaum kompensatorische Wirkung im Sinne gleicher Zugangschancen für alle Kinder« entfaltet, »sondern allenfalls den Anteil der Kinder mit Sowohl-als-auch-Zugang« erhöht (Feil S. 21). So zeichnen sich tendenziell zwar jeweils steigende Beteiligungen ab, aber »die Mehrheit der Kinder« ist noch »offline«. Und der Zugang der Kinder zum Netz allein »gibt weder Aufschluss über ihre Nutzungskompetenzen noch über die Bedeutung der Kommunikationsund Informationsfunktion des Internets für Kinder« (Feil S. 30), so die sicherlich stimmige Ausgangsthese.
Beobachtungen und Befragungen Da kommen die beiden vorliegenden Studien gerade recht, untersuchen sie doch mit qualitativen Methoden, mit Befragungen und teilnehmenden Beobachtungen, wie Kinder das Internet entdecken beziehungsweise nutzen, welche Kompetenzen sie haben und entwickeln, welche Erwartungen, Interessen und Präferenzen sie für das Netz haben, wie und welche Orientierungen und Suchstrategien sie entfalten und schließlich wodurch und wie sie sich von den Web-Sites ansprechen lassen. Das wird jeweils an einzelnen Beispielen und Szenen anschaulich beschrieben, teils wörtlich dokumentiert, sodass man plastische Eindrücke bekommt, wie Kinder an das Web herangehen, wie sie sich zurechtfinden und was sie darüber denken und wissen. Die eine Studie (Christine Feil et al. 2004) wurde zwischen 2001 und 2003 am Deutschen Jugendinstitut (DJI) München mit Unterstützung des Bundesministeriums für Bildung und Forschung durchgeführt; an ihr sind mehrere ForscherInnen beteiligt gewesen. Entsprechend komplexer und differenzierter sind ihre Erhebungsmethoden, entsprechend aufwendiger ist ihr Forschungsdesign, und entsprechend umfassender und dichter sind ihre Ergebnisse. Teilgenommen an der Studie haben elf Mädchen und sieben Jungen zwischen fünf und elf Jahren; sie wurden in zwei bis drei mindestens einstündigen Beobachtungsphasen in ihrem Umgang mit PC und Internet per Video beobachtet, zweimal befragt wurden die Eltern und die Erzieherinnen der Horte, in die die Kinder gehen. Die andere (Susanne Richter 2004) ist eine literaturdidaktische Dissertation an der Universität Lüneburg, deren empirischer Teil schon 1999, also drei Jahre früher als die DJI-Studie, durchgeführt wurde. Beteiligt waren 25 Schüler, darunter nur sechs Mädchen, zwischen zehn und 13 Jahren, die von der Autorin nach ihrer PC-Nutzung befragt und während einer halbstündigen »Surfphase« über vier ausgewählte Web-Sites beobachtet wurden. Mithin sind die Populationen allenfalls für die neun 10- bis 11-Jährigen der DJI-Studie vergleichbar, die andere Hälfte ist jünger.

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Date

20. 1.2003 9:37:22

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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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Date

22. 7.2006 16:32:43

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Date

3. 6.2005 20:40:22