One good way to prevent errors on input forms is to _______.?

	a.	?include active discovery
	b.	?write clear error messages
	c.	?provide undo capability
	d.	?provide shortcut keys

The primary principles of UI design of a desktop system include principles which also generally apply to other types of devices. Which of the following principles is NOT an important guideline when considering the layout and format of a particular screen.?

a.

?Grammar and spelling should be correct.

b.

?Controls on a screen should be grouped by related function

c.

?Each screen should have a primary purpose.

d.

?Dark colors should be avoided.

Which of the following are the two primary characteristics of smartphone UI design that are different than UI desktop design??

a.

?Touch screen and screen orientation

b.

?Limited screen size and touch screen

c.

?Screen orientation and limited screen size

d.

?Screen dimensions (height and width) and limited size

QUESTION 10

The study of human interaction with machines in general is called ____.?

a.

?user-centered design

b.

?human factors engineering

c.

?usability

d.

?human-computer interaction

QUESTION 13

When subsequent processing is delayed by more than a second or two, users may repeatedly press controls or re-enter information, resulting in processing errors and user frustration is an example of what??

	a.	?Lack of consistency
	b.	?Lack of closure
	c.	?Lack of feedback
	d.	?Lack of error handling