The theme of this article concerns the sketching in of a number of the factors in man's evolutionary interaction with tools, leading toward the predicted eventuality in his development, the replacement of man by machines. (Author)

Compares the five classic graphic design principles used to construct visual messages--proportion, sequence, emphasis, unity, and balance--with relevant human factors research findings. Compiled by Williges and Williges (1981) these findings focus on the structuring of information for visual displays in interactive environments. (MBR)