-
Fidel, R.: Searchers' selection of search keys : 3. Searching styles (1991)
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- Source
- Journal of the American Society for Information Science. 42(1991), S.515-527
-
Wagner-Döbler, R.: Was taugen Print und Online-Ausgaben? : Informationsmittel im direkten Usability-Vergleich (2004)
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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.
- Source
- Information - Wissenschaft und Praxis. 55(2004) H.4, S.225-229
-
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)
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- Classification
- AN 73400 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Bibliothekswesen / Datenverarbeitung / Einsatz in der Katalogisierung
- RVK
- AN 73400 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Bibliothekswesen / Datenverarbeitung / Einsatz in der Katalogisierung
-
Berger, F.C.; Hofstede, A.H.M. ter; Van der Weide, T.P.: Supporting query by navigation (1996)
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- Abstract
- Describes the technique used to study hypertext systems from a very general point of view, focus on monitoring searchers' behaviour, predict the estimation of the ultimate goals of the searchers, and estimate the searchers' determination to find these goals. The components are combined via a Markov chain approach so as to study information retrieval in general and hypertext (hypermedia) in particular. Demonstrates how these estimations can be used to assist searchers during their searching process and presents the derivation of a relevance function for documents, based on these estimations
- Source
- Information retrieval: new systems and current research. Proceedings of the 16th Research Colloquium of the British Computer Society Information Retrieval Specialist Group, Drymen, Scotland, 22-23 Mar 94. Ed.: R. Leon
-
Yitzhaki, M.; Hammershlag, G.: Accessibility and use of information sources among computer scientists and software engineers in Israel : academy versus industry (2004)
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- Abstract
- Hypothesizing that workplace significantly affects information-seeking patterns, this study compared accessibility and use of information sources among 233 Israeli computer scientists and software engineers, employed in industry and academy, using a mail questionnaire, which yielded a usable reply rate of 33%. The two groups were found to differ significantly in age, education, seniority, and type of research they performed (basic vs. applied). Printed textbooks, professional journals, and oral discussions with colleagues or experts in the organization were common to both groups, topping almost all lists of accessibility and use. For most information sources, however, the two groups differed significantly and consistently. Printed professional journals as weIl as printed and electronic conference or meeting papers were consistently more accessible and more often used by the academy group, while the industry group reported greater access to and more frequent use of electronic textbooks and trade or promotional literature. In regard to handbooks and standards, in-house technical reports (printed), government technical reports (Internet), librarians and technical specialists (Internet), and oral discussions with supervisors, no significant differences in accessibility were found, but their use by the industry group was much higher. In both groups, accessibility was only partly related to use, and more so among the academy than the industry group.
- Field
- Informatik
- Footnote
- Teil eines Themenheftes zu: Information seeking research
- Source
- Journal of the American Society for Information Science and Technology. 55(2004) no.9, S.832-842
-
Liebscher, P.; Abels, E.G.; Denman, D.W.: Factors that influence the use of electronic networks by science and engineering faculty at small institutions : Part II: Preliminary use indicators (1997)
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- Abstract
- Reports results of a study that examined factors influencing the adoption and use of electronic networks by science and engineering faculty in 6 small universities in the southerneaster USA. Part of the study gathered data on the purpose, type, and extent of electronic communications. Data were gathered by mail questionnaire and by follow up site visits. Reports on 5 types of network use, electronic mail, electronic discussion groups, accessing remote databases, accessing remote computer facilities, and file transfer. For each service, data are reported for frequency of use by purpose: research, teaching administration, social and current awareness. Outlines preliminary use indicators for each service in terms of heavy and moderate use
- Source
- Journal of the American Society for Information Science. 48(1997) no.6, S.496-507
-
Scholle, U.: Kann ich Ihnen behilflich sein? : Erhebung am zentralen Auskunftsplatz der ULB Münster (2000)
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- Date
- 22. 1.2000 17:52:11
-
Werner, K.: das Confirmation/Disconfirmation-Paradigma der Kundenzufriedenheit im Kontext des Information Retrieval : Größere Zufriedenheit durch bessere Suchmaschinen? (2010)
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- Abstract
- In der vorgestellten Studie aus dem Bereich des interaktiven Information Retrieval wurde erstmals die Erwartungshaltung von Suchmaschinennutzern als mögliche Determinante der Benutzerzufriedenheit untersucht. Das experimentelle Untersuchungsdesign basiert auf einem betriebswirtschaftlichen Modell, das die Entstehung von Kundenzufriedenheit durch die Bestätigung bzw. Nicht-Bestätigung von Erwartungen erklärt. Ein zentrales Ergebnis dieser Studie ist, das bei der Messung von Benutzerzufriedenheit besonders auf den Messzeitpunkt zu achten ist. Des Weiteren konnte ein von der Systemgüte abhängiger Adaptionseffekt hinsichtlich der Relevanzbewertung der Benutzer nachgewiesen werden.
- Source
- Information - Wissenschaft und Praxis. 61(2010) H.6/7, S.385-396
-
Branch, J.L.: Investigating the information-seeking process of adolescents : the value of using think alouds and think afters (2000)
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- Source
- Library and information science research. 22(2000) no.4, S.371-382
-
Schneider, R.: OPACs, Benutzer und das Web (2009)
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- Abstract
- Der Artikel betrachtet anhand einer Studie zum Benutzerverhalten bei der Online-Katalogrecherche den gegenwärtigen Stellenwert und das zukünftige Potential der Web-OPACs. Dabei werden zunächst die Ergebnisse einer quantitativen Logfile-Analyse sowie qualitativer Benutzertests erörtert, bevor aktuelle Entwicklungen der Webtechnologie, die unter den Schlagworten Web 2.0 und Web 3.0 propagiert werden, im Zusammenhang mit der Online-Recherche und der Entwicklung neuartiger Suchverfahren kurz diskutiert werden.
- Date
- 22. 2.2009 18:50:43
-
Harms, I.; Schweibenz, W.: Usability engineering methods for the Web (2000)
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- Content
- Der Beitrag präsentiert eine Studie über Evaluationsmethoden zur WebUsability. Er beschreibt die "Heuristics for Web Communications" und berichtet von den praktischen Erfahrungen mit den Heuristiken, die mit dem "Keevil Index" verglichen und mit Benutzertests mit lautem Denken kombiniert werden. Das Ergebnis zeigt, dass eine Evaluation mit den beschriebenen Heuristiken gegenüber dem "Keevil Index" mehr Zeit und Aufwand erfordert, aber konsistentere Ergebnisse bringt. Die Heuristiken haben sich sowohl in der experten-zentrierten Evaluation als auch in Kombination mit dem Benutzertest insgesamt als geeignete Evaluationsmethode erwiesen
- Source
- Informationskompetenz - Basiskompetenz in der Informationsgesellschaft: Proceedings des 7. Internationalen Symposiums für Informationswissenschaft (ISI 2000), Hrsg.: G. Knorz u. R. Kuhlen
-
Niu, X.; Hemminger, B.M.: ¬A study of factors that affect the information-seeking behavior of academic scientists (2012)
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- Abstract
- In an effort to understand how academic scientists seek information relevant to their research in today's environment of ubiquitous electronic access, a correlation framework is built and regression analysis is applied to the survey results from 2,063 academic researchers in natural science, engineering, and medical science at five research universities in the United States. Previous work has reported descriptive statistics about these scientists' information-seeking behavior. This study extends that work to examine relationships between scientists' information-seeking behaviors and their personal and environmental factors. Several regression models, including the Poisson model, the logit model, and the ordered logit model, are built to interpret the correlation among scientists' behaviors. In addition, exploratory factor analysis is used for data reduction. Overall, many factors were found to affect the specific information-seeking behaviors of scientists, including demographic, psychological, role-related, and environmental factors. Of the factors having an effect, academic position was the most important determinant of information behavior.
- Source
- Journal of the American Society for Information Science and Technology. 63(2012) no.2, S.336-353
-
Coleman, A.S.: Knowledge structures and the vocabulary of engineering novices (2004)
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- Abstract
- This paper describes a study of the language used by undergraduate engineering students engaged in a civil engineering laboratory. Learner's concepts and relationships in the area of soil consolidation were elicited in order to provide an understanding of the structural knowledge of novices and compare it with the knowledge structures of a human expert and a thesaurus tool. Concept maps and pathfinder networks were used to visualise and analyse the resultant knowledge structures of novice learners, expert, and tool. Results show that there is little similarity between the knowledge structures of the novice, the expert, and the tool.
- Content
- 1. Introduction A small study is described which investigated the vocabulary as reflected in the knowledge structures of novices. The research was conducted in order to understand how knowledge organization tools may be designed to meet the needs of novices in the GROW digital library. GROW is the Geo-technical, Rock, and Water digital library, the first step in the establishment of a National Civil Engineering Resources Library (NCERL). Digital libraries are complex entities that have many components: besides the collections of individual resources and the interface to these resources, they have organization, labelling, navigation and searching systems. Controlled vocabularies and thesauri are often the invisible components. This study is based an the premise that the controlled vocabulary influences the above mentioned related components in the digital library. We felt that it was important to understand the knowledge structures of a primary group of user, the novice - the student learner - who is new to the domain. A great deal of research has been done about how people learn and how people use information, but fewer studies link science knowledge structures, vocabulary, and language use.
- Source
- Knowledge organization and the global information society: Proceedings of the 8th International ISKO Conference 13-16 July 2004, London, UK. Ed.: I.C. McIlwaine
-
Tenopir, C.; Wang, P.; Zhang, Y.; Simmons, B.; Pollard, R.: Academic users' interactions with ScienceDirect in search tasks : affective and cognitive behaviors (2008)
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- Abstract
- This article presents part of phase 2 of a research project funded by the NSF-National Science Digital Library Project, which observed how academic users interact with the ScienceDirect information retrieval system for simulated class-related assignments. The ultimate goal of the project is twofold: (1) to find ways to improve science and engineering students' use of science e-journal systems; (2) to develop methods to measure user interaction behaviors. Process-tracing technique recorded participants' processes and interaction behaviors that are measurable; think-aloud protocol captured participants' affective and cognitive verbalizations; pre- and post-search questionnaires solicited demographic information, prior experience with the system, and comments. We explored possible relationships between affective feelings and cognitive behaviors. During search interactions both feelings and thoughts occurred frequently. Positive feelings were more common and were associated more often with thoughts about results. Negative feelings were associated more often with thoughts related to the system, search strategy, and task. Learning styles are also examined as a factor influencing behavior. Engineering graduate students with an assimilating learning style searched longer and paused less than those with a converging learning style. Further exploration of learning styles is suggested.
- Footnote
- Beitrag eines Themenbereichs: Evaluation of Interactive Information Retrieval Systems
- Source
- Information processing and management. 44(2008) no.1, S.105-121
-
Kluck, M.: ¬Die Informationsanalyse im Online-Zeitalter : Befunde der Benutzerforschung zum Informationsverhalten im Internet (2004)
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- Abstract
- Die Notwendigkeit des professionellen Einsatzes von empirischen Methoden als Grundvoraussetzung für den Entwurf und die Gestaltung von Informationsdiensten, Informationsprodukten und Informationssystemen ist seit den frühen sechzigerfahren in der Informationsarbeit erkannt worden. Anfänglich wurde - ausgedrückt durch die Bezeichnung "Benutzerforschung" oder "fachliche Rezipientenforschung" -versucht, den Informationsbedarfvon unterschiedlichen Benutzergruppen (im Rahmen einer Typologie der Benutzer von Informationssystemen) zu messen und aufgrund dieser Daten zu Einschätzungen von Art, Menge, Umfang und Tiefe von Informationsbedürfnissen zu gelangen. "Benutzerforschung sollte den Lebensweg von Informationsprodukten beziehungsweise Informationsdiensten begleiten. Sie kann erste Anregungen geben, sie liefert Entscheidungshilfen im Planungsstadium und kontrolliert dann, ob, wo und wie sich der geplante Erfolg tatsächlich eingestellt hat." In den siebziger und achtziger Jahren traten dann Fragestellungen in den Vordergrund, die den allgemeinen Nutzen der Information und besonders der Strukturen und Prozesse der Informationsvermittlung empirisch zu beschreiben versuchten. Darüber hinaus wurden mit dem in den siebziger Jahren dann vollzogenen Einsatz der Informationsund Kommunikationstechnologien in den Bibliotheken und Informationsstellen Fragestellungen wichtig, die unter dem Begriff "Kommunikationsanalysen" etwa die Ansätze der Informationsbedarfsmessung mit der empirischen Analyse des Einsatzes von Informations- und Kommunikationstechnologien verbanden. Ein weiteres Einsatzfeld empirischer Untersuchungen ergab sich aus dem langsamen Entstehen eines Marktes für elektronische Informationsprodukte, wodurch sowohl empirische Marktforschungsstrategien als auch empirische Marketingansätze in die Informationsarbeit hineingetragen wurden. Schließlich traten Untersuchungen der Benutzerfreundlichkeit von Informationssystemen und ihrer Bedienbarkeit sowie dann die allgemeinen Kriterien der Softwareergonomie hinzu. Ferner werden seit den 90er Jahren durch die Nutzung des Internets als Angebotsmedium Aspekte der Kundenorientierung und Fragen der empirischen Nutzungsforschung und der Bedienungsfreundlichkeit (Usability) zunehmend wichtiger. Dementsprechend haben sich auch die Begrifflichkeiten für die Benutzerforschung in Bibliotheken gewandelt: Von Benutzung, Benutzerbedürfnisse, Benutzerforschung, Benutzerfreundlichkeit über Benutzerorientierung, Benutzerzufriedenheit, Benchmarking, Qualitätsmanagement, Bibliotheksmarketing hin zu Kundenorientierung, Kundenzufriedenheit, Service. Hinsichtlich der Internet-Angebote kamen dann Aspekte des Benutzerverhaltens und der Bedienungsfreundlichkeit der Software bzw der Benutzerschnittstellen hinzu. Allen Konzepten ist gemeinsam, dass sie im weitesten Sinne den Prozess der gesellschaftlichen Informationsvermittlung auf einer übergreifenden Ebene verstehbar machen: Aus der Sicht des Nutzers von Information, aus der Sicht manifester und latenter Informationsbedürfnisse, aus der Sicht technisch unterstützter fachlicher Informationsund Kommunikationsprozesse der Information und Dokumentation oder aus der Sicht technischer und ästhetischer Gestaltung. Diese hier grob unterschiedenen Ansätze werden nun unter dem Begriff Informationsanalyse zusammengefasst.
- Source
- Grundlagen der praktischen Information und Dokumentation. 5., völlig neu gefaßte Ausgabe. 2 Bde. Hrsg. von R. Kuhlen, Th. Seeger u. D. Strauch. Begründet von Klaus Laisiepen, Ernst Lutterbeck, Karl-Heinrich Meyer-Uhlenried. Bd.1: Handbuch zur Einführung in die Informationswissenschaft und -praxis
-
Yoo, E.-Y.; Robbins, L.S.: Understanding middle-aged women's health information seeking on the web : a theoretical approach (2008)
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- Date
- 9. 2.2008 17:52:22
- Source
- Journal of the American Society for Information Science and Technology. 59(2008) no.4, S.577-590
-
Stallmann, A.: Silver Surfer im Internet (2012)
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- Abstract
- Deutschland unterliegt einem demographischen Wandel, der Anteil der über 50-Jährigen nimmt deutlich zu. Internetnutzer mit einem Alter von 50 Jahren oder älter werden als Silver Surfer bezeichnet. Im Zuge der fortschreitenden Digitalisierung gilt der kompetente Umgang mit dem Internet als Schlüsselqualifikation zur Erleichterung und Bereicherung des Lebens. Es werden Ergebnisse einer Befragung vorgestellt, die zu beantworten versucht, ob und in welchem Umfang Silver Surfer über Kompetenz im Umgang mit dem Internet verfügen. Bei der Befragung findet der Persona-Ansatz aus dem Bereich der Softwareentwicklung Anwendung. Ergebnis der Studie ist, dass die Generation 50+ unterschiedliche Interneterfahrungen aufweist und nicht als homogene Gruppe betrachtet werden kann.
- Source
- Information - Wissenschaft und Praxis. 63(2012) H.4, S.217-226
-
Mandl, T.; Schulz, J.M.; Marholz, N.; Werner, K.: Benutzerforschung anhand von Log-Dateien : Chancen Grenzen und aktuelle Trends (2011)
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- Abstract
- Die Analyse des Verhaltens von Benutzern von Informationssystemen stellt einen Kern der Informationswissenschaft dar. Die Sammlung von umfangreichen Verhaltensdaten fällt mit den heutigen technischen Möglichkeiten leicht. Der Artikel fasst Möglichkeiten und Chancen der Analyse von Log-Dateien zusammen. Der Track LogCLEF wird vorgestellt, der Forschern erstmals die Möglichkeit eröffnet, mit den denselben Log-Dateien und somit vergleichend arbeiten zu können. Die Datengrundlage und einige Ergebnisse von LogCLEF werden vorgestellt.
- Source
- Information - Wissenschaft und Praxis. 62(2011) H.1, S.29-35
-
Knautz, K.; Dröge, E.; Finkelmeyer, S.; Guschauski, D.; Juchem, K.; Krzmyk, C.; Miskovic, D.; Schiefer, J.; Sen, E.; Verbina, J.; Werner, N.; Stock, W.G.: Indexieren von Emotionen bei Videos (2010)
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- Abstract
- Gegenstand der empirischen Forschungsarbeit sind dargestellte wie empfundene Gefühle bei Videos. Sind Nutzer in der Lage, solche Gefühle derart konsistent zu erschließen, dass man deren Angaben für ein emotionales Videoretrieval gebrauchen kann? Wir arbeiten mit einem kontrollierten Vokabular für neun tionen (Liebe, Freude, Spaß, Überraschung, Sehnsucht, Trauer, Ärger, Ekel und Angst), einem Schieberegler zur Einstellung der jeweiligen Intensität des Gefühls und mit dem Ansatz der broad Folksonomy, lassen also unterschiedliche Nutzer die Videos taggen. Versuchspersonen bekamen insgesamt 20 Videos (bearbeitete Filme aus YouTube) vorgelegt, deren Emotionen sie indexieren sollten. Wir erhielten Angaben von 776 Probanden und entsprechend 279.360 Schiebereglereinstellungen. Die Konsistenz der Nutzervoten ist sehr hoch; die Tags führen zu stabilen Verteilungen der Emotionen für die einzelnen Videos. Die endgültige Form der Verteilungen wird schon bei relativ wenigen Nutzern (unter 100) erreicht. Es ist möglich, im Sinne der Power Tags die jeweils für ein Dokument zentralen Gefühle (soweit überhaupt vorhanden) zu separieren und für das emotionale Information Retrieval (EmIR) aufzubereiten.
- Source
- Information - Wissenschaft und Praxis. 61(2010) H.4, S.221-236
-
Löw, W.; Scherneck, S.: ¬Das Informationsverhalten von Biowissenschaftlern im Spannungsfeld zwischen traditioneller Informationsvermittlung und virtueller Bibliothek : Zu den Ergebnissen von Untersuchungen an zwei wissenschaftlichen Spezialbibliotheken (1998)
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- Abstract
- An 2 biowissenschaftlichen Einrichtungen der Grundlagenforschung, dem Max-Delbrück-Centrum für Molekulare Medizin, Berlin-Buch und dem Leibniz-Institut für Neurobiologie, Magdeburg, wurden 1997 bzw. 1998 Nutzerbefragungen durchgeführt. Obwohl die untersuchten Gruppen beträchtliche Altersunterschiede aufwiesen, ergeben sich einheitliche Trends: für etwa 2/3 der Wissenschaftler ist gegenwärtig die Nutzung von Printmedien und elektronischen Informationsofferten gleichwertig, während etwa 15% der Befragten letzteren den Vorzug geben. Bei der Datenbanknutzung ist festzustellen, daß MEDLINE die überragende Position sowohl bei der CD-ROM als auch Online im Internet einnimmt
- Source
- nfd Information - Wissenschaft und Praxis. 49(1998) H.8, S.463-470
