WCAG 4 Principles

Question 1

What are the 4 Principles which form the foundation of the WCAG (Web Content Accessibility Guidelines)?

Answer 1

Perceivable, Operable, Understandable, Robust

Question 2

What is Principle #1?

Answer 2

Perceivable

Question 3

What is Principle #2?

Answer 3

Operable

Question 4

What is Principle #3?

Answer 4

Understandable

Question 5

What is Principle #4?

Answer 5

Robust

Question 6

What Principle number is “Perceivable”?

Answer 6

1

Question 7

What Principle number is “Operable”?

Answer 7

2

Question 8

What Principle number is “Understandable”?

Answer 8

3

Question 9

What Principle number is “Robust”?

Answer 9

4

Question 10

Define the “Perceivable” Principle and its underlying meaning?

Answer 10

Information and user interface components must be presentable to users in ways they can perceive.

• This means that users must be able to perceive the information being presented (it can’t be invisible to all of their senses)
  https: //www.w3.org/WAI/WCAG21/Understanding/intro#understanding-the-four-principles-of-accessibility

Question 11

Define the “Operable” Principle and its underlying meaning?

Answer 11

User interface components and navigation must be operable.

• This means that users must be able to operate the interface (the interface cannot require interaction that a user cannot perform)
  https: //www.w3.org/WAI/WCAG21/Understanding/intro#understanding-the-four-principles-of-accessibility

Question 12

Define the “Understandable” Principle and its underlying meaning?

Answer 12

Information and the operation of user interface must be understandable.

• This means that users must be able to understand the information as well as the operation of the user interface (the content or operation cannot be beyond their understanding)
  https: //www.w3.org/WAI/WCAG21/Understanding/intro#understanding-the-four-principles-of-accessibility

Question 13

Define the “Robust” Principle and its underlying meaning?

Answer 13

Content must be robust enough that it can be interpreted reliably by a wide variety of user agents, including assistive technologies.

• This means that users must be able to access the content as technologies advance (as technologies and user agents evolve, the content should remain accessible)
  https: //www.w3.org/WAI/WCAG21/Understanding/intro#understanding-the-four-principles-of-accessibility