> When dealing with users, and slow processes (that you can't make faster for some reason) The reason is that these systems all require realtime design techniq

> When dealing with users, and slow processes (that you can't make faster for some reason) The reason is that these systems all require realtime design techniques, and realtime design techniques are rarely taught in school and the overwhelming majority of software engineers don't know them, and the vast majority of software engineering managers are unaware that realtime design techniques even exist. All computers that manage user interfaces today -- all of them -- are by many orders of magnitude fast enough to provide near-instantaneous responses to user inputs if programmed with realtime techniques.