Podcast
Questions and Answers
What is the primary purpose of alternative (alt) text attributes?
What is the primary purpose of alternative (alt) text attributes?
What should be considered when writing alternative text for an image?
What should be considered when writing alternative text for an image?
When is descriptive text required for an image?
When is descriptive text required for an image?
What should be included in the descriptive text surrounding an image?
What should be included in the descriptive text surrounding an image?
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What is the purpose of including a descriptive text surrounding an image?
What is the purpose of including a descriptive text surrounding an image?
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Why is it important to include alternative text attributes and descriptive text for images?
Why is it important to include alternative text attributes and descriptive text for images?
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What should be done with images that provide no additional meaning or purpose?
What should be done with images that provide no additional meaning or purpose?
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Why do users without visual or cognitive impairments benefit from accessible images?
Why do users without visual or cognitive impairments benefit from accessible images?
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What is the primary purpose of providing descriptive text and alt text for images?
What is the primary purpose of providing descriptive text and alt text for images?
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What type of images should have an empty string as the alt text?
What type of images should have an empty string as the alt text?
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What is the main difference between decorative and informative images?
What is the main difference between decorative and informative images?
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Why should you write alt text and descriptive text when you write the content that surrounds the image?
Why should you write alt text and descriptive text when you write the content that surrounds the image?
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What should you consider when writing alt text for an image?
What should you consider when writing alt text for an image?
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What is the purpose of the alt text and descriptive text combination?
What is the purpose of the alt text and descriptive text combination?
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Why should you not duplicate information in the alt text and descriptive text?
Why should you not duplicate information in the alt text and descriptive text?
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What should you do if you're unsure whether an image is informative or decorative?
What should you do if you're unsure whether an image is informative or decorative?
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What is the benefit of writing descriptive and alt text for an image?
What is the benefit of writing descriptive and alt text for an image?
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What types of images are always informative?
What types of images are always informative?
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Study Notes
Importance of Accessible Images
- Accessible images provide crucial meaning and value for users with impaired or no vision, or those who have trouble processing a lot of information or are easily distracted.
- Users with visual or cognitive impairments, or those who turn off images to save data, rely on screen readers to gain an understanding of images.
- All users must be able to get the same information from the alt text and surrounding text as if they could see the image.
Alternative (Alt) Text Attributes
- Alternative (alt) text attributes are required for all images.
- Alt text contains a brief description of the image's meaning or purpose, and is context-dependent.
- If the image provides no additional meaning or purpose, the alt text attribute is set to an empty string.
Descriptive Text
- Descriptive text is required when the information exceeds the recommended alt text limit.
- Descriptive text provides a brief summary of the image and describes the data provided in the image as it applies to the surrounding context.
- For complex images, such as diagrams, charts, and infographics, provide as much information as possible in the descriptive text surrounding the image.
Image Types
- Images can be either decorative or informative.
- Decorative images convey no meaning and their alt text is set to an empty string.
- Informative images provide information and meaning for the user and always need alt text that summarizes the meaning conveyed by the image.
Best Practices for Alternative and Descriptive Text
- Write alt text and descriptive text when creating the content that surrounds the image.
- Writing alt text after the initial content is drafted is usually less complete and effective.
- Good descriptive and alt text requires thought and effort, considering users with and without disabilities.
- Writing concise yet meaningful alternative text takes time and practice.
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Description
Learn the importance of accessible images for users with visual and cognitive impairments, and how to create inclusive design for all users.