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Wirtschaftsinformatik 44(1) - Februar 2002

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  • Zeitschriftenartikel
    (Wirtschaftsinformatik: Vol. 44, No. 1, 2002) Luttermann, Hartmut; Freisleben, Bernd; Grauer, Manfred; Kelter, Udo; Kamphusmann, Thomas; Merten, Udo; Rößling, Guido; Unger, Thomas; Waldhans, Jürgen
    This paper presents Mediana, a computer-based, integrated workbench for the management and analysis of media data supporting media researchers. Its main components are the recording and management of multimedia data (i.e. image, video and text data) in a database system, semi-automatical analysis tools for images and videos, and a graphical user interface (GUI) integrating all tools and components applied in media research.
  • Zeitschriftenartikel
    Unified Messaging in großen Unternehmen
    (Wirtschaftsinformatik: Vol. 44, No. 1, 2002) Wohlfeil, Stefan; Voelz, Dirk
    This paper is about Unified Messaging in large enterprises. Messaging in enterprises is usually characterised by infrastructures for telephony and E-Mail already being in place. Enterprises are often reluctant to replace existing systems simply in order to enhance functionality. This is due to the fact that large investments had already been made and companies are expecting a return on investment. p]Unified Messaging integrates different communication means. It supports employees who travel a lot and others who receive many messages of different types. This paper begins with a description of Unified Messaging functions. Then we describe typical Unified Messaging architectures. One of our main conclusions is that choosing well designed communication interfaces (usually by employing standard protocols) is more important than simply choosing a good Unified Messaging product. In section 3 we describe a Unified Messaging architecture suitable for large enterprises. This architecture fits well into already existing architectures. We conclude with an estimation of investment costs and operation costs for such an architecture.
  • Zeitschriftenartikel
    WI — Dissertationen
    (Wirtschaftsinformatik: Vol. 44, No. 1, 2002)
  • Zeitschriftenartikel
    Potenziale des Content-Managements
    (Wirtschaftsinformatik: Vol. 44, No. 1, 2002) Gersdorf, Ruben; Schoop, E.
  • Zeitschriftenartikel
    XML als Integrationstechnologie bei Informationsanbietern im Internet
    (Wirtschaftsinformatik: Vol. 44, No. 1, 2002) Rawolle, Joachim; Ade, Jochen; Schumann, Matthias
    This paper explores the use of XML for integrating content and applications for internet publishers based on a case study from the media industry.After a short introduction into the general conditions of the project the paper describes the most important requirements that were to be met with regard to the interfaces between the content management system and a set of external, partly interactive applications (like a search engine and discussion groups). Subsequently, a mechanism based on XML and HTTP is presented that was implemented as a solution within the scope of the project.Finally, experiences gained during the course of implementation and operation are confronted with the requirements as defined earlier in order to asses the strengths and weaknesses of XML-based integration mechanisms in similar settings.
  • Zeitschriftenartikel
    In eigener Sache
    (Wirtschaftsinformatik: Vol. 44, No. 1, 2002) König, Wolfgang
  • Zeitschriftenartikel
    Kooperierende intelligente Softwareagenten
    (Wirtschaftsinformatik: Vol. 44, No. 1, 2002) Kirn, Stefan
    This paper introduces to the reader the field of cooperating intelligent software agents. It first reviews the historical roots of Distributed AI, and the main concepts that have been developed in that field since the end of the seventies, and on which today’s agent technology is based upon. The paper then concentrates on the modeling of agents. Starting with a terminological discussion of what agents are, and with an example the main characteristics of cooperating intelligent agents are presented, formalized, and discussed. Based upon this the paper proceeds to issues that are relevant to multiagent systems: coordination, communication, and standardization. The paper concludes with a sum-up of the main results, and an extensive bibliography.
  • Zeitschriftenartikel
    (Wirtschaftsinformatik: Vol. 44, No. 1, 2002) Gadatsch, Andreas; Tschirschwitz, Reiner; Lehner, Franz; Schwarze, Lars; Stahlknecht, Peter; Lohse, Matthias; Gabriel, Roland; Stary, Christian; Wallmüller, Ernest
  • Zeitschriftenartikel
    Vergleichende Buchbesprechung
    (Wirtschaftsinformatik: Vol. 44, No. 1, 2002) Schoop, Eric; Gersdorf, Ruben; Jungmann, Berit
  • Zeitschriftenartikel
    Das BONITAS-System
    (Wirtschaftsinformatik: Vol. 44, No. 1, 2002) Haase, Paul-Gerhard; Nastansky, Ludwig
    Tool support for professional credit-rating is currently dominated by data-oriented approaches. This results in primarily focusing on hard facts in the financial institutions’ process of evaluating credit inquiries of their customers. Content objects and arguments which cannot algorithmically be mapped onto rigid data-tables („soft facts”), however, with the potential of having a decisive impact on credit assessment, tend to be not sufficiently and appropriately placed into consideration. The BONITAS system overcomes this structural lack of information processing in traditional credit management systems in adding to the traditional approach innovative groupware-enabled capabilities. Compound documents in a messaging context are used to be integrative containers for all relevant information. These documents support both information gathering and evaluation of „hard” data and „soft” facts as well as semi-structured information gathering workflows allowing for a continuum of assessment-specific process options. The creation of valid and marketable business knowledge in credit management processes is basically team-driven. Thus, the essential features of groupware-based information management systems, i.e. their outstanding capabilities in communication, collaboration and coordination, represent critical baselines for improving the decision quality in credit-rating. An important goal of the BONITAS system is to aim at creating a constantly improved knowledge base on credit management workflows. This knowledge base is continuously being maintained in the operational progress of customer projects. It enables the financial institution to judge on the financial strength of upcoming clients in a holistic and anticipating evaluation process superior to traditional much more static assessments.