In Chapters 11, 12, and 13 you learned the basis for sound design of screens,
forms,Web sites, and databases. This included the special use of fonts, color, and
layout design to communicate to users and to help them do the right thing with
the input and output they encountered. To examine the underlying reasons for
much of the design you learned, it is useful to look at human sensory capabilities
and limitations that will inform our design. In keeping with the HCI philosophy,
an analyst should be able to compensate, overcome, or replace human senses to a
varying extent.