Hierarchy classification:

1. top of the aat hierarchies
2. Associated Concepts Facet
3. Associated Concepts (hierarchy name)
4. multidisciplinary concepts
5. [information and information related concepts]
6. categories of information
7. image description

Anotations

Scope note:

Describes text that appears on Web pages that provides an equivalent of what would be presented by an image. This appears in HTML as the 'alt text' label. Alternative text can be provided at the same time as images when building Websites. Screen readers may read 'alt text' aloud, and present text when images fail to load.