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In this paper we present an overview of several visualization techniques to support the search process in Digital Libraries (DLs). The search process typi-cally can be separated into three major phases: query formulation and refine-ment, browsing through result lists and viewing and interacting with docu-ments and their properties. We discuss a selection of popular visualization techniques that have been developed for the different phases to support the user during the search process. Along prototypes based on the different tech-niques we show how the approaches have been implemented. Although vari-ous visualizations have been developed in prototypical systems very few of these approaches have been adapted into today's DLs. We conclude that this is most likely due to the fact that most systems are not evaluated intensely in real-life scenarios with real information seekers and that results of the interest-ing visualization techniques are often not comparable. We can say that many of the assessed systems did not properly address the information need of cur-rent users. (author's abstract)

Der Automobilsektor enthält mit der Produktion von verbrennungsbasierten Motoraggregaten für die metallverarbeitende Industrie nach wie vor eine anspruchsvolle Fertigungsaufgabe. Erst jetzt sind durchgängige Mess- und Prüfketten durch smarte, industrietaugliche Lösungsbausteine für diese Problemstellung verfügbar. Kompakte prozessorientierte Sensorik sowie ein auf das Wesentliche reduzierte Hard- und Softwaretechnologiemodul zeichnen diese vergleichsweise leicht zu integrierende Technik aus.

In the automotive sector, the production of combustion-based engine units remains an important field of activity for metalworking businesses. It is only now that continuous measurement and test chains can be implemented using smart industrial solutions for this problem. Compact process-orientated sensors together with associated stringently functional, minimalistic hard-and software module distinguish the presented solution.