I had to rehearse the presentation really carefully because, of course, the Reports menu would have dropped down wherever I clicked – but I clicked in the right places and provided a very good simulation of how the application would work once developed.
I simulated clicking menu items by creating a sequence of slides containing several perfectly aligned screen shots of the user interface so that, for example, when I clicked on the Reports menu a drop-down magically appeared. I once did a product demo (to an international audience in Rome) of some software that had been designed but didn’t exist.