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Alt-Text & Link Rot â How Accessibility Features Benefit Everyone
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<h1>
Alt-Text & Link Rot â How Accessibility Features Benefit Everyone
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<p>
Links rot. Itâs unfortunate, but itâs just a part of the web. Content disappears and links rot; if you donât host your own images, then you canât guarantee that your images will always appear. In this situation, alt-text can be the difference between your piece still making sense and it being completely useless. This is because many browsers show the alt-text with the missing image icon, so descriptive alt-text can make sure your audience still gets the necessary information.
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<h2>
Examples
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<h3>
Quiz question
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<p>
Here is how this question is supposed to look like:
</p>
<blockquote>
<img class="center" src="menu.jpg" alt="Figure: Lunch menu showing prices of items. â˘Â Sushi bento â $12.00. â˘Â Vegan bento â $11.00. â˘Â Beef bento â $11.00. â˘Â Chirashi bento â $15.50.">
</blockquote>
<blockquote>
Alice, Bob, and Carlos go to a restaurant and pay a total of $38.50. Bob does not eat beef. Alice payed less than Carlos, Carlos payed more than Bob, and Alice payed more than Bob. What did each person order at the restaurant?
</blockquote>
<p>
Unfortunately, the link to the image no longer works, leaving this question completely unanswerable:
</p>
<blockquote>
<img class="center" src="menu.png">
</blockquote>
<blockquote>
Alice, Bob, and Carlos go to a restaurant and pay a total of $38.50. Bob does not eat beef. Alice payed less than Carlos, Carlos payed more than Bob, and Alice payed more than Bob. What did each person order at the restaurant?
</blockquote>
<p>
If the person who made the quiz provided alt-text, then the quiz would still be answerable (albeit erroneously formated):
</p>
<blockquote>
<img class="center" src="menu.jpg.png" alt="Figure: Lunch menu showing prices of items. â˘Â Sushi bento â $12.00. â˘Â Vegan bento â $11.00. â˘Â Beef bento â $11.00. â˘Â Chirashi bento â $15.50.">
</blockquote>
<blockquote>
Alice, Bob, and Carlos go to a restaurant and pay a total of $38.50. Bob does not eat beef. Alice payed less than Carlos, Carlos payed more than Bob, and Alice payed nore than Bob. What did each person order at the restaurant?
</blockquote>
<h3>
Graphs
</h3>
<p>
Math can be nearly impossible sometimes without graphing. Imagine if you prepared a document with graphs but didnât include alt-text! Here are some examples of how graphs can be understood through alt-text.
</p>
<blockquote>
<img class="center" src="abs_x-2_.svg" alt="Figure: Graph of y equals the absolute value of x-minus-two. The line is V-shaped with a slope of plus-or-minus 1. The point of the V is at x equals 2 y equals 0.">
</blockquote>
<blockquote>
Suppose we add the line <span class=".math">g(<var>x</var>) = |<var>x</var> â 2|</span>. Where would this line intersect with <span class=".math">f(<var>x</var>)</span>?
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<hr class="light">
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<blockquote>
<img class="center" src="abs_x02_.png" alt="Figure: Graph of y = |x â 2|. The line is V-shaped with a slope of Âą1. The point of the V is at (2, 0).">
</blockquote>
<blockquote>
Suppose we add the line <span class=".math">g(<var>x</var>) = |<var>x</var> â 2|</span>. Where would this line intersect with <span class=".math">f(<var>x</var>)</span>?
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<hr class="light">
<blockquote>
<img class="center" src="abs_x02_.png">
</blockquote>
<blockquote>
Suppose we add the line <span class=".math">g(<var>x</var>) = |<var>x</var> â 2|</span>. Where would this line intersect with <span class=".math">f(<var>x</var>)</span>?
</blockquote>
<h3>
Images as links
</h3>
<p>
If you use images as links, then not using alt-text means theyâre completely unreadable if the image fails to load or if a user relies on a screenreader.
</p>
<blockquote>
<img class="center" src="covid-safety.jpg" alt="Northern Essex Community College COVID-19 Safety Measures">
</blockquote>
<blockquote>
<hr class="light">
</blockquote>
<blockquote>
<img class="center" src="covid-safety.png">
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<hr class="light">
</blockquote>
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<img class="center" src="covid-safety.jpg.png" alt="Northern Essex Community College COVID-19 Safety Measures">
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<h3>
General
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<p>
Even if your images donât contain critical information, you still probably put them there for a reason. Itâd be nice if people still had an idea of the images if they donât load.
</p>
<blockquote>
<img class="center" src="hip.jpg" alt="Image of fresh fruits and vegetables titled âHealthy Incentives Programâ with the caption âFresh. Canned. Dried. Frozen. Itâs HIP to be healthy!â.">
</blockquote>
<blockquote>
Did you know that Massachusetts residents who qualify for food stamps (SNAP) can get an additional $40 per person per household each month to spend on fresh fruits and vegetables?
</blockquote>
<blockquote>
<hr class="light">
</blockquote>
<blockquote>
<img class="center" src="hip.png">
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<blockquote>
Did you know that Massachusetts residents who qualify for food stamps (SNAP) can get an additional $40 per person per household each month to spend on fresh fruits and vegetables?
</blockquote>
<blockquote>
<hr class="light">
</blockquote>
<blockquote>
<img class="center" src="hip.jpg.png" alt="Image of fresh fruits and vegetables titled âHealthy Incentives Programâ with the caption âFresh. Canned. Dried. Frozen. Itâs HIP to be healthy!â.">
</blockquote>
<blockquote>
Did you know that Massachusetts residents who qualify for food stamps (SNAP) can get an additional $40 per person per household each month to spend on fresh fruits and vegetables?
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Š DJ Chase 2023-02-28. Licensed under the Academic Free License (AFL 3.0).
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