What makes something simple or complex? It's not the number of dials or controls or how many features it has: It is whether the person using the device has a good conceptual model of how it operates.
Donald A. NormanAS for all those mistakes I make - they are on purpose - to teach you how to deal with them
Donald A. NormanSimplicity design axiom: The complexity of the information appliance is that of the task, not the tool. The technology is invisible.
Donald A. Norman