1999, Handschuh, Siegfried, Mann, Thomas M., Mußler, Gabriela, Reiterer, Harald

Nach einem funktionalen Überblick über das Gesamtsystem wird auf die Konzeption eingegangen. Aufbauend auf dem Rahmenkonzept von Shneiderman wird ein Multiagentensystem vorgeschlagen, das den Benutzer bei der Informationssuche unterstützen soll. Da der erfolgreiche Einsatz eines Business Intelligence Systems ganz wesentlich von der Art der Informationspräsentation bestimmt wird, beschäftigt sich ein wesentlicher Teil dieses Beitrags mit ausgewählten Ansätzen zur Visualisierung von Suchergebnissen, die innerhalb des Projektes verfolgt werden.

1999, Bleimann, Udo, Reiterer, Harald, Mann, Thomas M., Mußler, Gabriela

1997, Kirkgoeze, R., Kurz, A., Reiterer, Harald, A Min, Tjoa

Applications based on Data Warehouses especially decision support systems such as Executive Information Systems (EIS) are rapidly becoming a key to gain competitive advantage for businesses. Data Warehouse allows businesses to get data from operational databases and turn that data into useful information on which users can carry out their analysis. In this paper we will discuss the importance of meta modeling for EIS and Data Warehouses as analytical base in EIS for decision support.

1996, Reiterer, Harald

1999, Reiterer, Harald

1997, Reiterer, Harald

1997, Reiterer, Harald, Mann, Thomas

1999, Mann, Thomas M., Reiterer, Harald

The idea of Information Visualization is to get insights into great amounts of abstract data. Especially document sets found by searching the World Wide Web are a special challenge. The paper gives a short overview on the variety of possible visualizations for this application area. Crucial factors for the success of visualizations are discussed. A combined approach is presented to use alternative simple visualizations, grouped around the traditional result-list, for usage with a local meta web search engine.

1997, Reiterer, Harald

1997, Oppermann, Reinhard, Reiterer, Harald

There is an increasing need for practical and comprehensive evaluation methods and tools for conformance testing with ISO standards. In this study, we focus on ISO 9241 which is an important ergonomic standard. A brief description shows its content and structure. Practical evaluations include the amount of time and resources which must be managed in software projects, while comprehensive evaluations require that the context of use be considered during the evaluation of user interfaces. In order to complete a comprehensive evaluation of usability, it is necessary to use more than one evaluation method. Therefore, an overview of different evaluation approaches is given, describing their advantages and disadvantages. Finally, the ISO 9241 Evaluator is presented in detail as an example of a practical expert-based evaluation method for conformance testing with the ISO 9241 standard, that can be integrated in a comprehensive evaluation approach.