Accessibility Principles

Question 1

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What are the 4 principles of Web Accessibility?

Answer 1

1. Perceivable
2. Operable
3. Understandable
4. Robust

Acronym: POUR

Question 2

What is the definition of Perceivability?

Answer 2

Perceivability is about making the output of web content available through multiple sensory modalities.
* Sight
* Sound
* Touch

Question 3

What are some examples of the Perceivability principle?

Answer 3

• Using ARIA to announce a change of state on the web page
• Using aria-live to make announcements
• Adding alt text to images
• Providing text transcripts