Human–Computer Interaction

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3

Human factorS aS

HcI tHeorIeS

3.1 Human Information Processing

Any effort to design an effective interface for human–computer inter-

action (HCI) requires two basic elements: an understanding of (a)

computer factors (software/hardware) and (b) human behavior. We

will look at the computer aspects of HCI design in the second part

of this book. In this chapter, we take a brief look at some of the basic

human factors that constrict the extent of this interaction.

In Chapters 1 and 2, we studied two bodies of knowledge for HCI

design, namely (a) high-level and abstract principles and (b) specific

HCI guidelines. To practice user-centered design by following these

principles and guidelines, the interface requirements must often be

investigated, solicited, ...