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- ZeitschriftenartikelEine Dienstgüte unterstützende Webservice-Architektur für flexible Geschäftsprozesse(Wirtschaftsinformatik: Vol. 47, No. 4, 2005) Berbner, Rainer; Heckmann, Oliver; Mauthe, Andreas; Steinmetz, RalfWeb services as a technology to enable distributed business processes gain in importance. However, the support of Quality of Service (QoS) is crucial in this context. Thus, we present an integrated web service architecture with comprehensive QoS support. The architecture we introduce in this paper supports the assessment of web services to assure that only web services will be used in critical business processes that satisfy the requirements defined by the user. The selection and execution of a certain web service depends on its QoS-properties that must be guaranteed in Service Level Agreements (SLAs). The compliance with SLAs is monitored by the system as well. Furthermore we introduce a prototypical implementation of our web service architecture.
- ZeitschriftenartikelErfahrungsbericht über die doktorandenförderung in der wirtschaftsinformatik(Wirtschaftsinformatik: Vol. 47, No. 4, 2005) Abels, Sven; Habenicht, Ilka; Häberle, Oliver; Ulbrich, Frank; Walter, Sven
- ZeitschriftenartikelErfolgsfaktoren der Applikationsintegration(Wirtschaftsinformatik: Vol. 47, No. 4, 2005) Klesse, Mario; Wortmann, Felix; Schelp, JoachimIn this paper success factors for application integration are identified. Furthermore, the factors are confirmed using structural equation modeling. Success is measured using five goal indicators: quality of process support, business satisfaction, application integration costs, architectural flexibility and time-to-market. All factors discussed — architecture management, business-IT alignment, organization of integration, integration methodology, service oriented architecture, consolidation of applications, standardization and technical quality of integration infrastructures — show positive impact on application integration success. Since no dominant factor could be identified, a balanced implementation of all success factors is recommended.
- ZeitschriftenartikelErlösquellen und Preismodelle für den Business-to-Consumer-Bereich im Internet(Wirtschaftsinformatik: Vol. 47, No. 4, 2005) Skiera, Bernd; Spann, Martin; Walz, UweThis article discusses revenue sources and pricing models for business-to-consumer electronic commerce. We outline why revenue sources and pricing models should be separated, how pricing models can contribute to strategic and tactic goals and which pricing models the Internet facilitates mostly. Thereby, we discuss the different forms of price discrimination and the possibilities of interactive pricing models.
- ZeitschriftenartikelErratum to: Dissertationserhebung in der wirtschaftsinformatik 2004(Wirtschaftsinformatik: Vol. 47, No. 4, 2005) Heidecke, Florian; Back, Andrea; Brenner, Walter
- ZeitschriftenartikelIntegration verteilter Produktmodelle durch Semantic-Web-Technologien(Wirtschaftsinformatik: Vol. 47, No. 4, 2005) Hahn, AxelProduct development is the most knowledge intensive business process in industry. Product models have a special role in supporting knowledge and information exchange. Interdisciplinary engineering processes and distributed tools generate distributed and heterogeneous product models with numerous internal dependencies and relationships. Neither Knowledge Management Systems nor Product Life Cycle Management Systems support the maintenance of these relationships sufficiently today. This paper suggests an approach to describe and manage internal relationships of the product model and to ensure its consistency by using Semantic Web technologies. Ontologies are applied to specify the relationships semantically.
- ZeitschriftenartikelIntegrierte Ex-ante-Rendite-/Risikobewertung von IT-Investitionen(Wirtschaftsinformatik: Vol. 47, No. 4, 2005) Wehrmann, Alexander; Zimmermann, SteffenIn enterprises decisions whether to undertake investments into IT projects or not have to be made regularly. Regarding the fact that two out of three IT projects fail or do not reach their expected value the need for an integrated valuation which addresses returns and connected risks is evident. The impact of development aspects (e.g. the process model used) and project size on the risk-return position of IT projects is demonstrated and it is shown how this can be taken into account when valuing, optimizing and selecting IT investments.
- ZeitschriftenartikelInterview mit Norbert Szyperski über die „Innovationskultur in Deutschland“(Wirtschaftsinformatik: Vol. 47, No. 4, 2005) Heinzl, Armin; Hildenbrand, Tobias
- ZeitschriftenartikelSuccess factors and impacts of mobile business applications: Results from a mobile e-procurement study(Wirtschaftsinformatik: Vol. 47, No. 4, 2005) Müller, Günter
- ZeitschriftenartikelToll Collect als Forschungsgegenstand(Wirtschaftsinformatik: Vol. 47, No. 4, 2005) König, Wolfgang