Authors´ Reply4

We thank C. H. Haspel for pointing out our error with respect to his packaging procedure. We further basically agree with him as to the trend of logic design toward more logically complex modules. However, we do not share his optimism with regard to the capability of functional decomposition techniques in treating modules of the expected complexity. Rather we envision the evolution of functionally, instead of logically, oriented system design techniques which would perform intermodular design. Intramodular design would then be performed by some such technique as NAND decomposition.