This Article 
   
 Share 
   
 Bibliographic References 
   
 Add to: 
 
Digg
Furl
Spurl
Blink
Simpy
Google
Del.icio.us
Y!MyWeb
 
 Search 
   
A Theory of Diagnosability of Digital Systems
June 1976 (vol. 25 no. 6)
pp. 585-593
F. Barsi, Istituto di Elaborazione dell'Informazione del C.N.R.
The problem of automatic fault diagnosis of systems decomposed into a number of interconnected units is considered by using a simplified version of the diagnostic model introduced by Preparata et al. The model used in this paper is supposed to be a realistic representation of systems where each unit has a considerable computational capability. For any system of n units whose set of testing links is given, necessary and sufficient conditions for t-diagnosability are presented in both cases of one-step diagnosis and diagnosis with repair, and it is shown that the procedure for diagnosis with repair has very small complexity. The problem of optimal assignment of testing links in order to achieve a given diagnosability is also considered and classes of optimal t-diagnosable systems are presented for arbitrary values of t in both cases of one-step diagnosis and diagnosis with repair.
Index Terms:
Fault tolerance, graph models of system diagnosis, multiple faults, optimal designi for diagnosability, self-diagnosis, system reliability, test connections.
Citation:
F. Barsi, F. Grandoni, P. Maestrini, "A Theory of Diagnosability of Digital Systems," IEEE Transactions on Computers, vol. 25, no. 6, pp. 585-593, June 1976, doi:10.1109/TC.1976.1674658
Usage of this product signifies your acceptance of the Terms of Use.