Chapter 2: Universal Usability
Discussion Topics with Answers
1. Describe three populations of users with special needs. For each of these
populations, suggest three ways current interfaces could be improved to better serve
them.
2. Suppose you need to design a system for users in both the United States and Japan.
Present a list of cultural differences that you should be aware of so that a successful
design can be made.
3. In certain interfaces, it is necessary to inform users of an abnormal condition or
time-dependent information. It is important that the display of this information
catches the user’s attention. Suggest five ways a designer can successfully attract
attention.
4. Name a piece of software you often use where it is easy to produce an error. Explain
ways you could improve the interface to better prevent errors.
5. List some human physiological or psychological factors that can influence human
operator performance.
Variations in physical abilities and physical workplaces, diverse cognitive and
perceptual abilities, personality types, and factors affecting perceptual and
motor performance, such as: