Forms, content, and perception

Provide equivalent content

Write useful alternative text and provide captions, transcripts, or text equivalents according to media purpose.

9 minute lesson

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The event logo has concise purpose, a decorative flourish has empty alt text, and a speaker video has reviewed captions. That contrast gives us something useful to test instead of a rule to memorize.

An alternative conveys the purpose and information of content, not a mechanical inventory of pixels. The useful target is not encyclopedic coverage. Make one deliberate choice, observe its consequences, and know which requirement would make you revise it.

The happy path can hide a bad design: you can repeat nearby text in alt attributes or omit the information carried by a meaningful chart and still get one successful demo. Push past the demo. classify each image or medium by purpose and provide the shortest equivalent that preserves the user task, then test the condition most likely to prove the choice wrong.

The module is moving toward one outcome: Repair the registration content so input and information remain clear across perception and reading conditions. Save the before-and-after evidence now; it will make the final project review much more honest.

Audit every image and media item, justify its alternative, and test the page with images unavailable. Save the evidence, then explain which requirement would force you to choose a different design.

Lesson completed

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