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D. Tang, H. Hecht, M. Hecht, "Measurement-Based Dependability Evaluation for
Safety-Grade Digital Systems", The 1996 American Nuclear Society International Topical
Meeting on Nuclear Plant Instrumentation, Control and Human-Machine Technology,
Pennsylvania State University, USA, May, 1996
This paper presents a measurement-based methodology for ìdependability evaluation
of safety-grade digital instrumentation and control (I&C) systems. This methodology
uses failure data from operational systems to assess reliability and availability,
to problem areas, and to determine the no-failure test duration required for achieving
a certain level of dependability. The methodology is used with actual data from
nuclear safety, nuclear and air traffic control systems to demonstrate an approach
to the objective evaluation of dependability for critical systems.
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