Describes performer-centric interface design and explains a model-based approach for conducting performer-centric analysis and design. Highlights include design methodology, including cognitive task analysis; creating task scenarios; creating the presentation model; creating storyboards; proof of concept screens; object models and icons;…

Contains an excerpt from the author's landmark work about the way lay people think about technology and the language they use to express their thoughts. Discusses some of the fundamental differences between common conceptualizations of the way computers work and the way other machines and mechanisms work. (TB)