It is unfortunate that design and verification methodologies have often been out of sync with each other, and increasingly so over the past 20 years. The design methodology change that caused one particular divergence was the introduction of design Intellectual Property (IP). IP meant that systems were no longer designed and built in a pseudo top-down manner, but contemplated at a higher level and constructed in a bottom up, ‘lego-like’ manner by choosing appropriate blocks that could implement the necessary functions. (more…)