Facilitating comparisons between simulated and actual behavior of electronic devices

This invention relates generally to simulating and/or testing electronic devices, and, more particularly, to facilitating comparisons between the behavior of a device predicted by a simulation and the behavior of a corresponding physical device exercised on a tester. A system for analyzing the behavior of electronic devices includes a first database for storing simulation values and a second database for storing actual waveform values. The system further includes software for aligning the values stored in the first and second databases, so that simulated and actual values can be readily compared. Analysis tools are included for examining similarities and differences between simulated and actual behavior.