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How do you incorporate alternative text and labels for your tables and graphs?

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Tables and graphs are powerful tools to present data and information in a clear and engaging way. However, if you want to make your web design accessible and inclusive, you need to consider how people with visual impairments or screen readers can access and understand your tables and graphs. In this article, you will learn how to incorporate alternative text and labels for your tables and graphs, and why they are important for web accessibility.

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1 What is alternative text and labels?

Alternative text and labels are text descriptions that provide equivalent information for non-text content, such as images, tables, and graphs. They are used by screen readers, browsers, and assistive technologies to convey the meaning and purpose of the non-text content to people who cannot see or perceive it. Alternative text and labels are also useful for people with low bandwidth, slow internet connection, or browser settings that disable images.

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joel lennox

Blogging Strategist | Empowering Entrepreneurs for Online Success | Creating Vibrant Ecosystems of Innovation | Founder of Blogs2u | #Blogs2u
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Integrating alternative text and labels into web design is crucial to ensuring that all website visitors, regardless of their skills or circumstances, can access and grasp the material. Alternate text and labels are especially important for those with visual impairments or who use screen readers, since they give a comparable text description for non-text items, such as tables and graphs. By using alternate text and labels, you may create an inclusive site design that benefits everyone, including those with sluggish internet connections or images that are disabled. It's a small but important step in making your website more accessible and inclusive of all users.

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2 How to write alternative text and labels?

There is no one-size-fits-all formula for writing alternative text and labels, but there are some general guidelines and best practices to follow. First, you need to identify the type, function, and content of your non-text element. Is it a table, a graph, a chart, or a diagram? What is its role and relevance in the web page? What data or information does it convey? Second, you need to write a concise and accurate text description that captures the essential information and message of the non-text element. Avoid unnecessary details, jargon, or opinions. Third, you need to use proper markup and syntax to insert the alternative text and labels in your HTML code. Depending on the type of non-text element, you can use different attributes, such as alt, title, summary, caption, or aria-label.

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3 How to test alternative text and labels?

Once you have written and inserted alternative text and labels for your tables and graphs, it is important to test them to ensure that they are both accessible and effective. To do this, you can use a variety of methods and tools such as a screen reader or browser extension to hear how your alternative text and labels are read aloud, viewing your web page with images disabled or in different screen sizes and resolutions to observe the appearance of your alternative text and labels, or even asking someone who is visually impaired or uses a screen reader to review your web page and provide feedback.

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4 How to improve alternative text and labels?

Writing alternative text and labels is an ongoing process of improvement and refinement. To ensure accuracy, clarity, and relevance, it's important to update them when tables and graphs are changed or updated. Periodic reviews should also be conducted. Additionally, feedback from users, clients, or peers can help make the alternative text and labels more accessible and user-friendly.

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5 How to learn more about alternative text and labels?

If you want to learn more about alternative text and labels and how to apply them to your web design projects, you can explore the Web Content Accessibility Guidelines (WCAG) 2.1, the Web Accessibility Initiative (WAI), and the W3C Web Accessibility Tutorials. These resources provide standards and recommendations for web accessibility, tutorials, examples, and tips on how to create accessible tables and graphs, as well as step-by-step guidance and code snippets on how to use alternative text and labels for different types of tables and graphs.

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6 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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Alexandra Calvin

Accessibility Website Architect at A Calvin Design
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Effective alt text is critical for ensuring accessibility in digital content. It should be clear and concise, without unnecessary fluff or SEO keywords. The text should only provide information that can be directly seen, with any inferences saved for the image's caption. Whenever possible, it's best to digitize infographics and tables to ensure accessibility rather than inserting an image of them. Additionally, correct HTML formatting should be used within the tables and infographics for optimal accessibility.

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How do you incorporate alternative text and labels for your tables and graphs?

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1 What is alternative text and labels?

2 How to write alternative text and labels?

3 How to test alternative text and labels?

4 How to improve alternative text and labels?

5 How to learn more about alternative text and labels?

6 Here’s what else to consider

Web Design

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How do you incorporate alternative text and labels for your tables and graphs?

1

2

3

4

5

6

1 What is alternative text and labels?

2 How to write alternative text and labels?

3 How to test alternative text and labels?

4 How to improve alternative text and labels?

5 How to learn more about alternative text and labels?

6 Here’s what else to consider

Web Design

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