![]() ![]() This will help a larger number of people understand the information on your site more easily. Instead, use images intelligently and know when to add alt text. The solution isn’t to use as few images as possible. In this case, it’s good to include images and other media to help them process the information on the page better. If a person has trouble processing large amounts of information or is easily distracted, turning off images can help.Īlternatively, a person may have a learning disability which prevents them from understanding text easily. People who have cognitive disabilities may also turn off images on a page in order to reduce the number of distractions. The WebAIM homepage again, but this time without images – note that only the important images have alt text. The WebAIM homepage, with a logo image, large background image, and a number of icons. When you turn off images in the settings in most major browsers, the alt text for the image will display instead. With alt text, they have the option to turn off images so that pages load faster, without losing the information that the important images convey. People who have very slow internet connections – particularly in developing countries – also have a use case for alt text. If an image is conveying important information that isn’t available elsewhere on the page, a person who can’t see the image will not get that information if the image doesn’t have alt text specified by the HTML alt attribute. People with low vision may not be able to see an image well enough to understand what it is, and people who are fully blind won’t be able to see the image at all. People who use screen readers are usually either completely blind or have bad enough vision that it’s difficult to read the text on a page. This helps me understand the use cases of the feature better and keeps my focus on the people I’m designing for.Īlt text, or alternative text, is primarily used by people who use screen readers to access websites, apps, and other software. As a UX designer, I think it’s helpful to review exactly who will be using a specific feature and why. If you’re reading this article, I’m guessing you have at least some awareness of what alt text is for and how it’s used. In order to write appropriate alt text, you need to understand who you’re writing the alt text for and what the purpose of the image is. What’s not as easy to determine is when to use alt text and how to write alt text that will be effective. ![]() Automatically detecting whether an image has alt text or not is also pretty easy: browser-based tools like axe DevTools can find the alt text for most types of images. On the surface, it’s a simple concept to learn and is usually straightforward to implement. Images need alternative text (alt text) – this is often one of the first things designers and developers learn about accessibility. It is particularly challenging to make interactive features within text-based learning material accessible.How to Design Great Alt Text: An Introduction In many instances a more simplified version of the text may be more useful to a wider range of users. With very complex texts, it is important to know who the target audience is and structure it accordingly. The more complex the visual layout (tables, footnotes, boxes, icons, etc.), the more important it is to indicate the logical reading order within the structure. A properly structured document can be easily converted to the format that is preferred by the user for example, a well-structured text document can be read out loud and navigated by screen readers or other assistive technologies, maintaining the logical order embedded in the text. ![]() Textual information is structured by logically labelling different elements within it, such as sequential use of headers, captions and tables. Structuring textual information (a text) is essential in order to make it accessible to all users. Second, it allows a different user to transfer the text to a different format more easily. First, it makes it easier for any user, including those using assistive technologies, to find their way around it. Once structure is applied, a document’s accessibility is enhanced in two ways. Each element that is important – for example, chapter heading, table, figure, exam question – may be given certain attributes and labelled. In an exam paper it could refer to the individual questions. Each chapter heading and any sub-headings are set out in the table of contents, just as they are in this document. When it comes to text accessibility, structure has a slightly different meaning: it refers to what makes it easy to navigate around that text. ‘Text structure’ usually refers to whether the paragraphs are in the right order for the user to follow, making it easier to read. One of the most important issues in making text accessible is its structure and the ability to navigate it (navigability). ![]()
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