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# AXChart

A protocol that declares the minimum interface necessary for an accessibility element
to act as a chart.

```
protocol AXChart : NSObjectProtocol
```

## Overview

Use this protocol when you want to create an accessible representation of a chart
— a view that displays a graphical representation of a data set — for VoiceOver to
play as an audio graph.

Adopt the [`AXChart`](/documentation/Accessibility/AXChart) protocol on your chart’s view model, and set
the [`accessibilityChartDescriptor`](/documentation/Accessibility/AXChart/accessibilityChartDescriptor) property to an [`AXChartDescriptor`](/documentation/Accessibility/AXChartDescriptor)
that contains all the semantic information you need to represent your chart through
an audio interface, like the chart’s title, axes, data points, and a summary of the
chart’s key takeaways.

## Topics

### Supporting accessibility

[`accessibilityChartDescriptor`](/documentation/Accessibility/AXChart/accessibilityChartDescriptor)

A semantic description of an accessible chart or graph in the form of a chart descriptor.

[`AXChartDescriptor`](/documentation/Accessibility/AXChartDescriptor)

An object that contains all the semantic information about an accessible chart.

## Relationships

### Inherits From

[`NSObjectProtocol`](/documentation/ObjectiveC/NSObjectProtocol)

---

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