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Failure-Dependent execution time analysis

  • The growing complexity of safety-critical embedded systems is leading to an increased complexity of safety analysis models. Often used fault tolerance mechanisms have complex failure behavior and produce overhead compared to systems without such mechanisms. The question arises whether the overhead for fault tolerance is acceptable for the increased safety of a system. Manually modeling the timing behavior is cost intensive and error prone. Current approaches of safety analysis and execution time analysis are not able to reflect the timing behavior of complex mechanisms according to failures. In this paper, we describe an approach that combines safety analysis models with execution times to extract different execution times for different failure conditions. This provides a detailed view on the safety behavior in combination with the produced overhead and allows to find and certify appropriate fault tolerance mechanisms.

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Metadaten
Author:Kai Höfig, Dominik Domis
Parent Title (English):Proceedings of the Joint ACM SIGSOFT Conference–QoSA and ACM SIGSOFT Symposium–ISARCS on Quality of Software Architectures–QoSA and Architecting Critical Systems–ISARCS, Boulder, Colorado, USA, June 2011.
Publisher:ACM
Place of publication:New York, NY, USA
Document Type:Conference Proceeding
Language:English
Publication Year:2011
Tag:Analysis models; Safety-critical systems; Software architecture
First Page:115
Last Page:122
faculties / departments:Fakultät für Informatik
Dewey Decimal Classification:0 Informatik, Informationswissenschaft, allgemeine Werke / 00 Informatik, Wissen, Systeme / 000 Informatik, Informationswissenschaft, allgemeine Werke