Title :
Good Controllability and Observability Do Not Guarantee Good Testability
Author_Institution :
IBM Thomas J. Watson Research Center
Abstract :
In this paper we show that good controllability and observability do not guarantee good testability. In fact, one can easily find examples of faults that are difficult or impossible to detect, although both the controllability and observability figures are good.
Keywords :
Controllability; deterministic testing; observability; random testing; testability; Circuit faults; Circuit testing; Controllability; Costs; Digital circuits; Electrical fault detection; Equations; Fault detection; Jacobian matrices; Observability; Controllability; deterministic testing; observability; random testing; testability;
Journal_Title :
Computers, IEEE Transactions on
DOI :
10.1109/TC.1983.1676183
