RE: [xri] RDF predicate for Disco

["Drummond Reed" <drummond.reed@cordance.net>]

Joesph,

At a high level, it seems that XML document schemas that either natively
include a Link element that meets the criteria defined in Eran's spec or
that are extensible so they can include a Link element that conforms to
Eran's spec should be able to support this type of disco. However it seems
like it would be hard for non-extensible XML formats, or non-XML formats, to
use this definition of a Link Element directly as defined. The underlying
graph pattern and semantics could be replicated, but the actual syntax might
have to be different.

However it doesn't seem like we actually need to worry about how _we_ would
"extend disco to allow future document formats that want to have internal
links for rel="describedby" that could be used for discovery". It seems like
that's the job of those future document formats.

=Drummond 
 
> -----Original Message-----
> From: Joseph Anthony Pasquale Holsten [mailto:joseph.holsten@cordance.net]
> Sent: Thursday, January 08, 2009 9:19 AM
> To: xri@lists.oasis-open.org
> Subject: [xri] RDF predicate for Disco
> 
> Since HTML and Atom have link elements explicitly mentioned in Eran's
> discovery draft, I was wondering how that might map to RDF documents.
> It seems that many XHTML rel types have predicates defined here
> <http://www.w3.org/2005/05/hrel/>. Of course in <http://www.w3.org/TR/
> powder-dr/#semlink>, POWDER defines the predicate for its
> rel="describedby", using <http://www.w3.org/2007/05/powder-
> s#describedby>. I'm not sure this is a perfect match, since its range
> is a <http://www.w3.org/2007/05/powder-s#Document>.
> 
> But the real question is who cares? Does anyone feel the need to have
> this kind of link today?
> 
> Which begs further, what is the right way to extend disco to allow
> future document formats that want to have internal links for
> rel="describedby" that could be used for discovery?
> 
> http://josephholsten.com