He spent 14 years at Apple Computer, during which time he founded the Apple Human Interface Group. He has has also served as Distinguished Engineer for Strategic Technology at Sun, and was a lead designer for the WebMD site. Even more radical, he tested his ideas with real users, the kind who would actually use the machines being designed. I've saved you the trouble of reading everything through. His verbatim thoughts are surrounded by quotes, while blame for everything else must be borne by the author.
Users quickly see the breadth of their options, grasp how to achieve their goals, and do their work.
Effective interfaces do not concern the user with the inner workings of the system. Work is carefully and continuously saved, with full option for the user to undo any activity at any time. Effective applications and services perform a maximum of work, while requiring a minimum of information from users. The user must be considered as a design parameter in the work process and determines the true measure of any interface. This concentration on the user doesn't imply that a good interface doesn't have rules that need to be followed to achieve a desired effect.