A digital book may contain structured data in information tables. The information tables have a structure that conveys information (in addition to the contents of the cells), because its organization connects cells. These tables must be made accessible.
Objectives
Allow technical aids to render the information in comprehensible manifest tables, by indicating to the user the logical relations between the content and the contents of the table.
Improve accessibility of content to readers with disabilities
Implementation
Use the HTML th element and its scope attribute to mark the header cells and explain their gateway (col value scope for a column header, value row for line header).
Control
Check the source code of the epub or ACE HTML page