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Re: Screen Reader Testing Approach for Responsive Components – WCAG Compliance

for

From: Patrick H. Lauke
Date: Jan 20, 2025 8:29AM

On 20/01/2025 14:46, Ajeesh Thomas wrote:
[...]
> 1. How should screen reader testing be conducted to ensure the
> accessibility of components that change behaviour based on screen size
> adjustments? For example, Navigation Links /Site Map may become the
> Navigation Menu once the Screen size is modified.

Test it at all different variations, separately.

> 2. Is it necessary to perform screen reader testing at 200% and 400%
> zoom levels to confirm the accessibility of components that undergo changes
> upon resizing?

Yes. There's a whole spectrum of screen reader users. For instance,
users with low vision may use a combination of zoom/magnification (which
triggers responsive variations) and screen readers. Hence, you need to
test all variations.

> 3. What do WCAG conformance documents state regarding this topic?

Per 5.2.2 Full Pages note 3 https://www.w3.org/TR/WCAG22/#cc2 all
success criteria (unless clearly limited/marked as such) apply to
theoretically *all* possible variations based on screen sizes - so
you'll need to test all variations (generally, check what major
breakpoints a site/web app has, and test each variant).

P
--
Patrick H. Lauke

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