Diagram Accessibility

The practice of making visual diagrams — including scientific figures, flowcharts, organizational charts, and technical schematics — accessible to people with visual impairments, learning disabilities, or other conditions that affect visual processing. Diagram accessibility goes beyond providing simple alternative text; it involves creating explorable representations that allow users to navigate through components at different levels of detail, understand spatial relationships, and access the full informational content of the diagram. Techniques include converting bitmap images to semantically annotated SVG, providing hierarchical text descriptions, supporting keyboard-driven exploration with synchronized highlighting and magnification, and using ARIA live regions for aural rendering of diagram components.