Technical The NLI program and WOZ interface will be written in Visual Basic, and the two PCs will be networked, allowing the wizard to launch applications on the subject's machine. A program will be running on the subject's PC in the background, waiting for messages from the wizard's computer to indicate which application to launch, and what text to enter. It is my theory that, although GUIs have taken us a long way and overcome many problems, perhaps we should not forget the more traditional, command-like interface completely. GUIs have some problems, such as transparency. On many computers, there are several different word processing applications, each of which must be found in a particular program group, whose names are not always helpful.
Boolean logic is even worse.
References Fraser, Norman M. and G. Nigel Gilbert. Newell, A. F., Arnott, L., Carter, K., and G. Cruickshank.