Glossary

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Data Visualization(also: Data Viz, Information Visualization)

The graphical representation of data and information using visual elements such as charts, graphs, maps, and diagrams. While data visualization is a powerful tool for communicating patterns and insights, it presents significant accessibility barriers for people with visual…

Decorative Image(also: Decorative Graphic, Presentational Image)

An image that serves a purely aesthetic or visual design purpose and does not convey meaningful information to the user. According to WCAG guidelines, decorative images should receive empty alt text (alt="") so that screen readers skip over them rather than announcing…

Defluffing(also: Content Defluffing, Clutter Removal)

The process of removing non-essential visual elements from a web page — such as banners, advertisements, decorative images, and sidebar content — to expose the core information content more directly to assistive technology users. In the context of web accessibility transcoding,…

Document Accessibility(also: Accessible Documents, Document Remediation)

The practice of creating or converting digital documents so they can be effectively accessed by people using assistive technologies, particularly screen readers. Accessible documents require proper semantic structure (headings, lists, tables with headers), logical reading order,…

Document Engineering(also: Document Design, Document Processing)

Document engineering is the discipline concerned with the principles, tools, and processes for creating, managing, transforming, and presenting documents in ways that optimise their use across different contexts and audiences. In accessibility, document engineering encompasses…

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