http://dl.gi.de/handle/20.500.12116/11860 2026-07-21T13:34:41Z 2026-07-21T13:34:41Z Berbner, Rainer Heckmann, Oliver Mauthe, Andreas Steinmetz, Ralf http://dl.gi.de/handle/20.500.12116/12485 2018-03-26T09:09:43Z 2005-01-01T00:00:00Z

Eine Dienstgüte unterstützende Webservice-Architektur für flexible Geschäftsprozesse Berbner, Rainer; Heckmann, Oliver; Mauthe, Andreas; Steinmetz, Ralf Web 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.

2005-01-01T00:00:00Z Wehrmann, Alexander Zimmermann, Steffen http://dl.gi.de/handle/20.500.12116/12477 2018-03-26T09:09:43Z 2005-01-01T00:00:00Z

Integrierte Ex-ante-Rendite-/Risikobewertung von IT-Investitionen Wehrmann, Alexander; Zimmermann, Steffen In 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.

2005-01-01T00:00:00Z Elzenheimer, Marcus Grollius, Tobias Heinemann, Elisabeth Sternhuber, Joachim http://dl.gi.de/handle/20.500.12116/12484 2018-03-26T09:09:43Z 2005-01-01T00:00:00Z

Vergleichende Buchbesprechung Elzenheimer, Marcus; Grollius, Tobias; Heinemann, Elisabeth; Sternhuber, Joachim

2005-01-01T00:00:00Z König, Wolfgang http://dl.gi.de/handle/20.500.12116/12478 2018-03-26T09:09:43Z 2005-01-01T00:00:00Z

Toll Collect als Forschungsgegenstand König, Wolfgang

2005-01-01T00:00:00Z