Judges and judiciaries do not understand information technology (IT). This idea crops up quite often in discussions about IT for courts. The perceived slow rate of IT adoption in courts is explained by this lack of understanding. To my mind, this is not the main issue. What needs to be understood first is at the other end of the spectrum: how courts process information. This article shows four ways to use the model. There is, of course, much more in my book. Before looking at the model itself, we need to set out some concepts related to what courts do.