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Merge pull request #2591 from w3c/a11y/link-wcag-levels
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Add links to wcag level definitions
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mattgarrish authored Dec 8, 2023
2 parents 6daf1e3 + b04dc7f commit 8247924
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22 changes: 11 additions & 11 deletions epub33/a11y-tech/index.html
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<script src="../common/js/copyright.js" class="remove"></script>
<script class="remove">
var respecConfig = {
group: "epub",
wgPublicList: "public-epub-wg",
group: "pm",
wgPublicList: "public-pm-wg",
specStatus: "ED",
shortName: "epub-a11y-tech-11",
noRecTrack: true,
Expand Down Expand Up @@ -268,8 +268,8 @@ <h3>Identify sufficient access modes</h3>
<li><code>textual</code> &#8212; setting this value indicates that the publication is screen-reader
friendly (i.e., all the content is available for text-to-speech rendering by an assistive
technology). EPUB creators can set this value for EPUB publications that conform to [[WCAG2]] <a
href="https://www.w3.org/TR/WCAG2/#cc1">Level A</a> or higher, for example, as there must be
textual alternatives for non-text content to meet these thresholds.</li>
href="https://www.w3.org/TR/WCAG2/#cc1_A">Level A</a> or higher, for example, as there must
be textual alternatives for non-text content to meet these thresholds.</li>
<li><code>auditory</code> &#8212; setting this value indicates that pre-recorded audio is available
for the publication. EPUB creators can set this value for EPUB publications that provide media
overlays for all the content.</li>
Expand Down Expand Up @@ -1592,10 +1592,10 @@ <h3>Text</h3>
<h4>Use Unicode for text content</h4>

<p>[[wcag2]] <a data-cite="wcag2#non-text-content">Success Criterion 1.1.1</a> requires that text
equivalents be provided for all non-text content to meet Level A. In some regions (e.g., Asia),
it is not uncommon to find images of individual text characters, despite the availability of
Unicode character equivalents. This practice occurs for various reasons, such as ease of
translation of older documents and for compatibility across <a
equivalents be provided for all non-text content to meet <a data-cite="wcag2#cc1_A">Level A</a>.
In some regions (e.g., Asia), it is not uncommon to find images of individual text characters,
despite the availability of Unicode character equivalents. This practice occurs for various
reasons, such as ease of translation of older documents and for compatibility across <a
href="https://www.w3.org/TR/epub/#dfn-epub-reading-system">reading systems</a>. The use of
images in most instances leads to the text not being accessible to non-visual users,
however.</p>
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<p>The use of Unicode characters for all text content avoids this problem, allowing content to
successfully meet the minimum requirement for Level A.</p>

<p>For compliance with Level AA, EPUB creators are directed to <a data-cite="wcag2#images-of-text"
>Success Criterion 1.4.5</a> which further restricts the use of images of text to only a set
of essential cases.</p>
<p>For compliance with <a data-cite="wcag2#cc1_AA">Level AA</a>, EPUB creators are directed to <a
data-cite="wcag2#images-of-text">Success Criterion 1.4.5</a> which further restricts the use
of images of text to only a set of essential cases.</p>
</section>
</section>

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12 changes: 6 additions & 6 deletions epub33/a11y/index.html
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Expand Up @@ -474,13 +474,13 @@ <h4>WCAG conformance requirements</h4>

<li>
<p id="confreq-wcag-a">MUST, for whichever version of WCAG 2 selected, meet the requirements
of Level A, but it is strongly recommended that it meet the requirements of Level
AA.</p>
of <a data-cite="wcag2#cc1_A">Level A</a>, but it is strongly recommended that it meet
the requirements of <a data-cite="wcag2#cc1_AA">Level AA</a>.</p>
<div class="note">
<p>Although conforming at level AAA is not required by this specification, <a
href="https://www.w3.org/TR/epub/#dfn-epub-creator">EPUB creators</a> are
encouraged to follow the practices detailed in AAA success criteria when producing
accessible EPUB publications.</p>
<p>Although conforming at <a data-cite="wcag2#cc1_AAA">level AAA</a> is not required by
this specification, <a href="https://www.w3.org/TR/epub/#dfn-epub-creator">EPUB
creators</a> are encouraged to follow the practices detailed in AAA success
criteria when producing accessible EPUB publications.</p>
</div>
</li>
</ul>
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