Question 1

What are the four accessibility principles in the WCAG POUR principles?

Accepted Answer

The four principles are: 1) Perceivable; 2) Operable; 3) Understandable; and 4) Robust.

Question 2

What is the difference between WCAG conformance levels A, AA, and AAA, and what is the global legal standard?

Accepted Answer

Level A is the absolute minimum for preventing complete access barriers. AA is the most widely adopted reference in laws, policies, and commercial and government contracts. AAA is the most rigorous and is intended for specialized contexts.

Question 3

How do you design interfaces for screen readers, and how do you write professional alternative text?

Accepted Answer

Ensure a logical, consistent reading order (DOM Order), give every interactive element a clear Accessible Name, and write alternative text describing an image's function and contextual meaning rather than superficial visual details.

Question 4

Why should color not be the only way to convey information, and how do you support people with color blindness?

Accepted Answer

About 8% of men and 0.5% of women have some form of color blindness. Relying on color alone can make it impossible to distinguish system states such as success and failure.

Question 5

What are the standard touch-target dimensions across platforms?

Accepted Answer

The minimum touch area is 48x48dp on Android (Material Design), 44x44pt on Apple platforms (iOS HIG), and 24x24px under WCAG 2.2.

Question 6

Why are focus states and keyboard indicators essential, and what are their ideal specifications?

Accepted Answer

Users who navigate with a keyboard due to motor disabilities or personal preference rely entirely on the focus indicator to identify the currently selected element before pressing Enter or Space.

Question 7

What is cognitive accessibility, and how do you make interfaces easier for everyone to understand?

Accepted Answer

It is a design practice that considers users with learning difficulties, dyslexia, attention disorders, and older adults by simplifying language, structuring interfaces clearly, and making behavior consistent and predictable.

Question 8

Compare Inclusive Design, Universal Design, and Accessible Design.

Accepted Answer

Accessible Design focuses on technical standards and regulatory compliance for people with disabilities. Universal Design aims to create one solution that works for everyone. Inclusive Design is an approach that involves marginalized groups and creates varied solutions for different human needs.

Question 9

How do you design fully accessible forms that prevent errors in advance?

Accepted Answer

Keep labels visible, use clear helper text, and show inline validation feedback alongside the relevant field as soon as it is entered, with clear guidance for fixing errors.

Question 10

What are the strict accessibility requirements for multimedia (video and audio) under international web standards?

Accepted Answer

Provide accurate synchronized captions, full transcripts, and audio descriptions for silent visual events, and avoid autoplaying audio. If autoplay audio is necessary, it must stop within 3 seconds or provide a clear way to stop or control its volume (WCAG 1.4.2).