Module 8

Question 1

Hinting

Answer 1

Indicating which UI elements can be interacted with

Question 2

Types of Hinting

Answer 2

1. Static Hinting = distinctive look and feel
2. Dynamic Hinting = rollover highlights
3. Response Hinting = change visual design with click
4. Cursor Hinting = change cursor display

Question 3

Fitts’ Law

Answer 3

Time required to move to a target decreases with target size and increases with distance to the target

Big and near objects are easy to click; small and far objects are hard to click

The distance between a user’s task/attention area and the task-related button should be kept as short as possible.

Question 4

2 Types of Movement

Answer 4

1. Ballistic Movement = 1 large quick movement to target
2. Homing Movement = fine-adjusted movement; generally responsible for most of the movement time and errors

Question 5

True or False: Fitts’ Law does NOT apply to mobile design

Answer 5

False

Question 6

In a mobile application, should you use dynamic hinting or static hinting?

Answer 6

Static Hinting.

Dynamic Hinting is not possible as there is no cursor.

Question 7

Perception Disability

Answer 7

Visual and audio impairments

Question 8

Motion Disability

Answer 8

Muscle control impairment
- Difficulties with fine muscle control
- Weakness and fatigue

Question 9

Cognition Disability

Answer 9

Difficulties with mental processes

Question 10

Alt-text

Answer 10

Images with labels that explain them

Question 11

Assistive Design

Answer 11

Offering equivalent actions for disabled users that cannot take normal actions (good)

Question 12

Universal Design

Answer 12

Designing interactions so broadest set of users across age, ability, status in life, etc. can use normal actions (better)

Question 13

7 Principles of Universal Design

Answer 13

1. Equitable Use = useful to people with diverse abilities
2. Flexibility in Use = accommodates a wide range of preferences and abilities
3. Simple and Intuitive = easy to understand for everyone
4. Perceptible Information = communicates necessary info effectively to the user, regardless of ambient conditions or user’s sensory abilities
5. Tolerance for Error = minimizes hazards and consequences of accidental actions
6. Low Physical Effort = can be used efficiently and comfortably with minimal fatigue
7. Size & Space for Approach & Use = appropriate size and space is provided, regardless of user’s body size, posture, and mobility