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Design fault injection-based technique (DBIT) is proposed to implement a procedure of independent verification. The possible options of the proposed DBIT application are presented. The developed design fault profiling and injection tool is described. It is given an example of fault profiling and injection carrying out by the developed tool.
Particularities of on-line testing for digital components in safety-critical Instrumentation and Control systems (I&CS) are analyzed. A problem of on-line testing associated with insufficient checkability of the digital components in safety-critical I&CS (reactor trip system) is considered. A method of checkability estimation is offered. An example of comparator checkability assessment is...
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