Lecture 4

Question 1

Why do standards matter?

Answer 1

• They provide consistency between user interfaces
• Good practice for implementation, design and evaluation
• Prioritisation of issues
• Legal requirements

Question 2

What are the four principles of WCAG?

Answer 2

POUR

Perceivable: Information and UI components must be presentable to users in ways they can perceive.

Operable: UI components and navigation must be operable (the interface cannot require interaction that a user cannon perform).

Understandable: The content or operation cannot be beyond the users level of comprehension.

Robust: As technologies and user agents evolve, the content should remain accessible.

Question 3

Give 4 criteria of WCAG Perceivable

Answer 3

1. Distinguishable: Make it easier for people to see and hear content.
2. Adaptable: Content can be presented in a different way without losing information or structure.
3. Time based media
4. Alt Text

Question 4

Give 5 criteria of WCAG Operable

Answer 4

1. Keyboard accessible
2. Input Modalities: Support beyond the keyboard
3. Navigable
4. Enough time
5. Seizures and Physical Reactions

Question 5

Give 3 criteria of WCAG Understandable

Answer 5

1. Readable
2. Input Assistance: Help users avoid and correct mistakes
3. Predictable: Content appears and operates in predictable ways

Question 6

Give 1 criteria of WCAG Robust

Answer 6

1. Compatible: Ensure compatibility with assistive technology

Question 7

What are the 5 steps of WCAG Easy Checks?

Answer 7

1. Page Title
2. Image text alternatives
3. Text (headings, contrast ratio, resize text)
4. Interaction (keyboard and visual focus & forms, labels and errors)
5. General (moving, flashing content, multimedia alternatives, basic structure check)