BISPEC provides a user-friendly interface for inputting different analysis parameters, and viewing results graphically. Most of the input is made in one screen – the  Main Dialog screen. This greatly simplifies the input process, while providing easy access to all the powerful features of Bispec. The ground motion records to be used can be specified using the Ground Motion Dialog. The program allows the user to interactively test the hysteretic models by performing interactive pushover analysis on any model and observing hysteresis curves and interaction plots in the Model Testing Dialog.