Content is not assigned only by its shape or screen position
Separation of the background and form as the fundamental principle of |’accessibility, the designation of a content by its form or its prejudged position from the reader’s ability to distinguish that form or find that location.
Objectives
Allow understanding of information without access to visual media or when rendering it.
Improve accessibility of content to readers with disabilities
Implementation
When content is assigned in the physical version of the book by a reference to its shape or position The information in the numerical version of the same book must also be available with a text mention containing a hyperlink.
Control
This check concerns a wide variety of potential cases, Especially in the thread of a text or an illustration, a graph or a painting is referred. For each content concerned, to ensure that references in the form or position on the screen of the latter are not the only way to identify them. An explicit reference to an identifier (e.g. “See Figure #1”), an anchor link, etc.