# Diagram Accessibility

Out of the box, the Telerik UI for ASP.NET MVC Diagram provides extensive accessibility support and enables users with disabilities to acquire complete control over its features.

The Diagram is compliant with the [Web Content Accessibility Guidelines (WCAG) 2.2 AA](https://www.w3.org/TR/WCAG22/) standards and [Section 508](https://www.section508.gov/) requirements, follows the [Web Accessibility Initiative - Accessible Rich Internet Applications (WAI-ARIA)](https://www.w3.org/WAI/ARIA/apg/) best practices for implementing the [keyboard navigation](https://www.telerik.com/aspnet-mvc/documentation/html-helpers/diagrams-and-maps/diagram/accessibility/overview#keyboard-navigation) for its `component` role, provides options for managing its focus and is tested against the most popular screen readers.

## WAI-ARIA

This section lists the selectors, attributes, and behavior patterns supported by the component and its composite elements, if any.

The Diagram is an interactive [Graphics Document](https://www.w3.org/TR/graphics-aria-1.0/#graphics-document). All actions available for mouse users are also available through keyboard shortcuts.

| Selector                | Attribute                         | Usage                                                                     |
| ----------------------- | --------------------------------- | ------------------------------------------------------------------------- |
| `.k-diagram`            | `role=graphics-document`          | Indicates that the Diagram element is a Graphics Document.                |
|                         | `aria-roledescription`            | User-set value that clarifies the type of Diagram to screen reader users. |
|                         | `aria-label`                      | Announces the accessible name of the Diagram.                             |
| `.k-diagram-shape`      | `role=graphics-symbol`            | Specifies the role of the shape elements.                                 |
|                         | `aria-roledescription=Shape`      | Describes the role of the shape elements.                                 |
|                         | `aria-label`                      | Specifies the accessible name of the shape.                               |
| `.k-diagram-connection` | `role=graphics-symbol`            | Specifies the role of the connection elements.                            |
|                         | `aria-roledescription=Connection` | Describes the role of the connection elements.                            |
|                         | `aria-label`                      | Specifies the accessible name of the connection.                          |

## Resources

[WAI-ARIA Graphics Module](https://www.w3.org/TR/graphics-aria-1.0/)

[Accessibility Style Guide: SVGs](https://a11y-style-guide.com/style-guide/section-media.html#kssref-media-svgs)

## Section 508

The Diagram is fully compliant with the [Section 508 requirements](https://www.section508.gov/).

## Testing

The Diagram has been extensively tested automatically with [axe-core](https://github.com/dequelabs/axe-core) and manually with the most popular screen readers.

> To report any accessibility issues, contact the team through the [Telerik Support System](https://www.telerik.com/account/support-center).

### Screen Readers

The Diagram has been tested with the following screen readers and browsers combinations:

| Environment    | Tool |
| -------------- | ---- |
| Firefox        | NVDA |
| Chrome         | JAWS |
| Microsoft Edge | JAWS |

### Test Example

To test the Diagram component, refer to the [Diagram Accessibility Demo](https://demos.telerik.com/aspnet-mvc/accessibility/diagram).

## Keyboard Navigation

For details on how the Diagram keyboard navigation works, refer to the [Diagram Keyboard Navigation](https://www.telerik.com/aspnet-mvc/documentation/html-helpers/diagrams-and-maps/diagram/accessibility/keyboard-navigation) article.

## See Also

* [Keyboard Navigation by the Diagram for ASP.NET MVC (Demo)](https://demos.telerik.com/aspnet-mvc/diagram/keyboard-navigation)
* [Keyboard Navigation by the Diagram for ASP.NET MVC](https://www.telerik.com/aspnet-mvc/documentation/html-helpers/diagrams-and-maps/diagram/accessibility/keyboard-navigation)
* [Accessibility in Telerik UI for ASP.NET MVC](https://www.telerik.com/aspnet-mvc/documentation/accessibility/overview)