Cells in data tables are linked to their headers.

A digital book can contain data structured in information tables. Information tables have an information-carrying structure (in addition to the content of the cells), because its organization puts the cells into relationships. These tables must be made accessible.

Objectives

• Allow technical aids to render the information contained in tables in an understandable manner, by indicating to the user the logical relationships between table content and headers.
• Improving the accessibility of content for people with disabilities

Implementation

• Use the HTML th element and its scope attribute to mark up header cells and explain their scope (scope with col value for a column header, row value for a line header).

Control

• Check the source code of the HTML page of the epub or ACE

Validation

• Needs to be human verified.