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Benutzung von Katalogen und Freihandbeständen in deutschen Universalbibliotheken : Bd.1: Ergebnisse einer empirischen Untersuchung von Benutzer-Recherchen. Vorgelegt von D. Fischer-Knappe ... Bd.2: Einige Ergebnisse in bibliothekarischer Interpretation. Vorgelegt von J. Stoltzenburg u. K.W. Neubauer. - Bd.3: Methoden- und Dokumentationsband. Vorgelegt von P. Helfen u. B. Laufer (1984) 0.01
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Abstract

Dieser Forschungsbericht ist die überarbeitete Fassung des 1979 fertiggestellten Ergebnisberichts über die zweite Phase des von der Deutschen Forschungsgemeinschaft finanzierten Projekts "Benutzerforschung II". Während im Projekt I mit einer schriftlichen Befragung die Benutzer-Orientierungen, wie Verhaltensweisen, Einstellungen und Bewertungen bezüglich aller Funktionsbereiche von wissenschaftlichen Bibliotheken erkundet wurden, konzentriert sich das Projekt II auf die Benutzung der von den wissenschaftlichen Bibliotheken erstellten Informationsmittel, wobei es um Recherchen an alphabetischen Katalogen, Sachkatalogen und Freihandbeständen geht
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.
Saracevic, T.; Kantor, P.; Chamis, A.Y.: ¬A study of information seeking and retrieving : pt.1: Background and methodology (1988) 0.01
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Abstract

The objectives of the study were to conduct a series of observations and experiments under as real-life a situation as possible related to: (i) user context of questions in information retrieval; (ii) the structure and classification of questions; (iii) cognitive traits and decision making of searchers; and (iv) different searches of the same question. The study is presented in three parts: part 1 presents the background of the study and describes the models, measures, methods, procedures and statistical analyses used. Pt.2 is devoted to results related to users, questions, and effectiveness measures, and pt.3 to results related to searchers, searches, and overlap studies. A concluding summary of all results is presented in pt.3

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