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Erschienen in:
2011 | OriginalPaper | Buchkapitel
An Integrated Approach for Availability and QoS Evaluation in Railway Systems
verfasst von : Antonino Mazzeo, Nicola Mazzocca, Roberto Nardone, Luca D’Acierno, Bruno Montella, Vincenzo Punzo, Egidio Quaglietta, Immacolata Lamberti, Pietro Marmo
Erschienen in: Computer Safety, Reliability, and Security
Verlag: Springer Berlin Heidelberg
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Prediction of service availability in railway systems requires an increasing attention by designers and operators in order to satisfy acceptable service quality levels offered to passengers. For this reason it is necessary to reach high availability standards, relying on high-dependable system components or identifying effective operational strategies addressed to mitigate failure effects. To this purpose, in this paper an innovative architecture is proposed to simulate railway operation in order to conduct different kinds of analysis. This architecture encompasses a set of components considering, in an integrated way, several system features. Finally an application to a first case study demonstrates the impact on quality of service and service availability of different recovery strategies. Complexity of a railway system requires a heterogeneous working group composed of experts in transport and in computer science areas, with the support of industry.