CPU Sci Quiz 12/4/15

Question 1

What is usability?

Answer 1

the extent to which a computer system can be used by its users

Question 2

What goals does usability achieve?

Answer 2

Effectiveness, efficiency, and satisfaction

Question 3

Why is usability important?

Answer 3

Low-levels of usability result in loss of productivity, increased user frustration, and increased requirements for system support

People won’t use a system that is difficult to interact with

Question 4

Problems with devices:

Answer 4

Slowness
Unclear directions or processes
Incomplete information
Buttons or keyboard too small
Poor design for human ergonomics
Cluttered information
Navigation requires a mouse
Consistent look/feel throughout program
Links not easily recognizable
Poor contrast between text and background colors

Question 5

What are flaws of people?

Answer 5

People’s memory is limited
People make errors
People have decision-making processes based on priorities
People have disabilities
People live in different time zones and countries
People speak different languages

Question 6

What are Analysis and Design Phase Implications?

Answer 6

Watch users on the current system
Involve users early in the design phase (have users being giving feedback on prototypes)
Include end users in testing
Release beta versions
Conduct focus groups with users after release
Shadow users after release

Question 7

Where can we utilize the following technologies?

Answer 7

Touch screen
Braille keyboards
Speech recognition software
Text-to-speech readers