For screen readers or text-only readers to read the text to support content access to users with disabilities, you can add description to images and objects.
Procedure
Check out the topic in Oxygen XML Author.
To add a description to an image:
Double-click or select the element.
In the Attributes window, click alt and type a description for the image.
The reader using a screen reader must understand the drawing by your description. Descriptions might be quite long. If the alt text is a sentence fragment, do not add any punctuation at the end. For example, if the text is Folder icon, do not add a period at the end.
To add a description to an object element:
Double-click or select the element.
In the Attributes window, click name and type a description for the object.
Ensure that the description you provide is sufficient to help the reader using a screen reader understand the purpose of the object.