This issues is submitted by Mark Weiler, Phd. - Wilfrid Laurier University.

As a Web and User Experience librarian at a university, I have concerns with the guidance. With regards to the specific techniques for displaying meta-data, the guide simply suggests following EPUB and ONIX techniques. I believe this UX guide should not defer responsibility this way. It should invest more thought in considering how to display this information.

For example, while both the EPUB instructions and ONIX instructions for displaying metadata recommend displaying the certifier, if it exists, they do not provide any guidance on what to display when there is no certifier or no certifier credentials. Drawing on these techniques means university libraries are being advised to display uncertified books with no indicator that they are uncertified. Users and the general community may not know where to focus their feelings when they experience problems with uncertified books. For this reason, the UX guide should go beyond the EPUB and ONIX techniques and state: If the book has no certifier, then display a message “Not certified”. If the certifier does not have credentials, then display a message “Not credentialed”.