On the Design of Logic Networks with Redundancy and Testability Considerations
Ramaswami Dandapani, Sudhakar M. Reddy · IEEE Transactions on Computers · 1974
The presence of redundancy in combinational networks increases the cardinality of the test set to detect all stuck-at-faults. A solution to this problem is to identify and remove all redundancies in the networks before deriving test sets. It is shown in this paper that the identification of redundancy in arbitrary combinational networks is an extremely tedious problem.