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Talks and Poster Presentations (with Proceedings-Entry):

H. Kopetz:
"On the Fault Hypothesis for a Safety-Critical Real-Time System";
Talk: Future Generation Software Architectures in the Automotive Domain, San Diego, USA (invited); 2004-01-10 - 2004-01-12; in: "On the Fault Hypothesis for a Safety-Critical Real-Time System", H. Kopetz (ed.); (2004).



English abstract:
A safety-critical real-time computer system must provide its
services with a dependability that is much better than the dependability
of any one of its constituent components. This challenging goal can only
be achieved by the provision of fault tolerance. The design of any fault-
tolerant system proceeds in four distinct phases. In the »rst phase the
fault hypothesis is shaped, i.e. assumptions are made about the types
and numbers of faults that must be tolerated by the planned system.
In the second phase an architecture is designed that tolerates the spec-
i»ed faults. In the third phase the architecture is implemented and the
functions and fault-tolerance mechanisms are validated. Finally, in the
fourth phase it has to be con»rmed experimentally that the assumptions
contained in the fault-hypothesis are met by reality. The »rst part of
this contribution focuses on the establishment of a comprehensive fault
hypothesis for safety-critical real-time computer systems. The size of the
fault containment regions, the failure mode of the fault containment re-
gions, the assumed frequency of the faults and the assumptions about
error detection latency and error containment are discussed under the
premise that in future a distributed system node is expected to be a
system-on-a-chip (SOC). The second part of this contribution focuses
on the implications that such a fault hypothesis will have on the future
architecture of distributed safety-critical real-time computer systems in
the automotive domain.

Created from the Publication Database of the Vienna University of Technology.