1. A cell library generator of a computer system, the cell library generator comprising: a precharacterization voltage generator for generating a set of precharacterization output voltage values; an output current signal generator for generating output current signals for each of the set of precharacterization output voltage values; and a model definition compiler for compiling data from the precharacterization voltage generator and the output current signal generator into a cell library, wherein the cell library includes a set of cell entries, each cell entry comprising: a first cell identifier, the first cell identifier corresponding to a first cell; and a first set of model definition data for a driver model, the first set of model definition data being associated with the first cell identifier, the first set of model definition data comprising: a first set of output voltage values; and a first set of output current signals, each of the first set of output current signals being indexed by one of the first set of output voltage values.