In the context of accessibility, what should be avoided when writing alt text?

When creating alt text for images, the goal is to provide meaningful descriptions that enhance accessibility for individuals using screen readers and other assistive technologies. Avoiding content that is similar to surrounding text is critical because it creates redundancy and does not add any new information for users who rely on alt text. When alt text reiterates what is already conveyed in the text, it neither aids in comprehension nor contributes to a richer understanding of the content.

In contrast, offering a short description is often appropriate, as it captures key details without overwhelming the user with excessive information. Indicating the functionality of an image can also be crucial, especially for interactive elements, because it informs users of what actions they can take. Including brief context is essential as well; it provides additional background that helps users understand the relevance of the image to the overall content. Thus, the correct approach is to ensure that alt text provides unique and pertinent information that enhances users' experience without unnecessary repetition.