Abstract :
Evolution of the N-version software approach to the tolerance of design faults is reviewed. Principal requirements for the implementation of N-version software are summarized and the DEDIX distributed supervisor and testbed for the execution of N-version software is described. Goals of current research are presented and some potential benefits of the N-version approach are identified.
Keywords :
"Fault tolerance","Circuit faults","Fault tolerant systems","Hardware","Application software","Humans","Computer science","Computer errors","Software testing","Software reliability"