METHOD OF CONVERTING DATA

A method is described for converting a data set for use with a digital model of a hardware cell into an expanded data set for use with an analog model of the hardware cell. The method including the steps of determining the signal required to drive one or more pins of said analog model by analyzing whether the signals used in said digital model are in a first category or a second category, said first category containing relatively simple signals and said second category containing relatively complex signals, and providing the signal required for the one or more pins in the analog model in dependence on said analysis.