RDF mappings

Hi,

I am creating an academic website with RDF mappings for the content. I am using Drupal 7, RDF 7.x-2.0-alpha4 and Biblio 7.x-1.0-rc5. I have couple of questions.

1) In the RDF UI Mappings for the content types from biblio module, there is no facility to map the fields already present in the content type. RDF Mappings only show up for the newly created fields. Is there a way to do this for existing fields of biblio content types?

For those of you who have been following Drupal 7 core development, you might be aware that many RDF patches have already been committed. So, before it's old news: Drupal 7 will ship with RDFa enabled by default on nodes, comments, terms and users!

The first alpha release of Drupal 7 will be created next Friday Jan 15th. We've already incorporated most of the feedback we received from the semweb community so far, but I wanted to give the community a last chance to review the RDFa markup and the default RDF mappings we use before it's too late. I should emphasize that all the markup and default RDF mappings that we ship in core will be pretty much set in stone after the stable release of Drupal 7, hence this call for feedback. Site administrators who care about semantics will be able to alter these mappings by installing extra modules, but many people (read several 10K sites) will just install Drupal 7 and not care about the semantics it generates. Therefore we want to make sure the RDFa generated by Drupal out of the box is somewhat correct and does not make folks from the semantic/pedantic web community angry :) - we've tried to keep the semantics as generic as possible for that reason.

RDF mappings

I've created a diagram representing the default semantics of the core data structure which has been committed and I would appreciate feedback on the RDF terms we've used.