Alt text should describe the content and purpose of the video. Videos that don't explain their content require alt text to describe the visual experience, even if the user hears music, background sounds, and speech. In July, sales for brand A surpassed sales for brand B and kept increasing throughout the year.’ Alt text should also clearly describe the beginning point, progress, and conclusion of flow charts. Try to convey the insight for example, ‘A bar chart showing sales over time. Describing a chart as ‘A bar chart showing sales over time,' for example, would not be useful to a blind person.
When dealing with objects that give detailed information, such as an infographic, use alt text to provide the information conveyed in the object. You can also add alt text as an argument to the IMAGE function either by using text in quotes or by using a cell reference that contains the text. For example, IMAGE(""Contoso logo"). For example, important context might be the setting, the emotions on people's faces, the colors, or the relative sizes.ĭo not repeat the surrounding textual content as alt text or use phrases referring to images, such as, "a graphic of" or "an image of." In the example below, the alt text is referring to the image and does not describe the content of the image sufficiently. Consider what is important about an image. The alt text shouldn’t be longer than a sentence or two-most of the time a few thoughtfully selected words will do. Make sure to convey the content and the purpose of an image in a concise and unambiguous manner. When to use alt text? Images and pictures This topic describes how to understand, write, and use effective alt text in Microsoft 365 products. People hear words objectively but understand them subjectively. Well-written, descriptive alt text dramatically reduces ambiguity and improves user experience. When screen readers such as Microsoft Narrator, JAWS, and NVDA reach digital content with alt text, they will read the alt text aloud, allowing people to better understand what is on the screen.
Without descriptions of the infographics, anyone with a visual disability cannot understand the infographic and misses out on key information.Īlternative text (alt text) is descriptive text which conveys the meaning and context of a visual item in a digital setting, such as on an app or web page. The presentation contains infographics to illustrate a key point.
Imagine, for example, that a keynote speaker sends out their presentation after a conference. If a picture is worth a thousand words, what is it worth to people who cannot see? In our digital world, it is easy for people with a visual disability to miss critical information or have a frustrating and negative experience.
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