Search (3 results, page 1 of 1)

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Abstract

In Zeiten zunehmend wissensintensiver Berufsbilder besteht eine große Herausforderung heutiger Unternehmen darin, die zur Unterstützung organisatorischen Handelns erforderliche Information effizient und effektiv zur Verfügung zu stellen. Eine Grundlage für die Entwicklung einer adäquaten Informationsumgebung legt dabei das umfassende Verständnis des Kontexts und Verhaltens von Mitarbeitern im Umgang mit Information. Beides unterliegt jedoch einem steten Wandel und stellt hohe Anforderungen an die Flexibilität von Arbeitsplatzkonzepten und der Gestaltung von Informationsumgebungen. In diesem Artikel wird daher die aktuelle Bedeutung und Entwicklung informationswissenschaftlicher Ansätze zur Modellierung von Informationssuchverhalten, deren Methoden, sowie zentrale Konzepte und Erkenntnisse vorgestellt. Anschließend wird die Bedeutung dieser Modelle für den Arbeitsplatz-Kontext in Zeiten zunehmend wissensintensiver Tätigkeiten untersucht. Anhand der Wandlung des primär informativ genutzten Internet zu einem partizipativen Social Web wird daraufhin erörtert, welche neuen Entwicklungen es in der Erforschung des Nutzerkontexts zu berücksichtigen gilt. Die beispielhafte Betrachtung aktueller Forschungsergebnisse auf diesem Gebiet mündet in einer Diskussion weiteren Forschungsbedarfs.

Object

Web 2.0

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Abstract

The user-centered approach to information retrieval emphasizes the importance of a user model in determining what information will be most useful to a particular user, given their context. Mediated search provides an opportunity to elaborate on this idea, as an intermediary's elicitations reveal what aspects of the user model they think are worth inquiring about. However, empirical evidence is divided over whether intermediaries actually work to develop a broadly conceived user model. Our research revisits the issue in a web research services setting, whose characteristics are expected to result in more thorough user modeling on the part of intermediaries. Our empirical study confirms that intermediaries engage in rich user modeling. While intermediaries behave differently across settings, our interpretation is that the underlying user model characteristics that intermediaries inquire about in our setting are applicable to other settings as well.

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Abstract

The quality of online health information for consumers has been a critical issue that concerns all stakeholders in healthcare. To gain an understanding of how quality is evaluated, this systematic review examined 165 articles in which researchers evaluated the quality of consumer-oriented health information on the web against predefined criteria. It was found that studies typically evaluated quality in relation to the substance and formality of content, as well as to the design of technological platforms. Attention to design, particularly interactivity, privacy, and social and cultural appropriateness is on the rise, which suggests the permeation of a user-centered perspective into the evaluation of health information systems, and a growing recognition of the need to study these systems from a social-technical perspective. Researchers used many preexisting instruments to facilitate evaluation of the formality of content; however, only a few were used in multiple studies, and their validity was questioned. The quality of content (i.e., accuracy and completeness) was always evaluated using proprietary instruments constructed based on medical guidelines or textbooks. The evaluation results revealed that the quality of health information varied across medical domains and across websites, and that the overall quality remained problematic. Future research is needed to examine the quality of user-generated content and to explore opportunities offered by emerging new media that can facilitate the consumer evaluation of health information.