ABSTRACT
Somewhere, it is likely that a person is driving in the wrong direction on a one-way road. Somewhere else, someone is driving without headlights, although he/she is needing them but cannot determine how to turn them on. A student just flunked an exam by using the wrong answer sheet. Several folks are trying to go in the out door... Poor labeling, distractions, and other factors may be to blame here. For the purposes of this text, we will concern ourselves with the need to account for this in device design via the use of human factors studies.
