text alternative

  Text that is programmatically associated with non-text content or referred to from text that is programmatically associated with non-text content. Programmatically associated text is text whose location can be programmatically determined from the non-text content.

  An image of a chart is described in text in the paragraph after the chart. The short text alternative for the chart indicates that a description follows.

  Refer to Understanding Text Alternatives for more information.