On the Fault Hypothesis for a Safety-Critical Real-Time System

  title={On the Fault Hypothesis for a Safety-Critical Real-Time System},
  author={Hermann Kopetz},
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 faulttolerant system proceeds in four distinct phases. In the first 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… CONTINUE READING
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