[OpenID] OpenID v.next. Atom or XRD

[John Kemp]

Chris Messina wrote:

[...]

> And, why are we having this discussion? This is a frivolous conversation 
> at this point — since ATOM itself is just an XML data format. XRD is 
> just another XML data format designed for a different purpose.
> 

I mostly agree with this.

In Liberty ID-WSF we also designed a discovery representation (ID-WSF 
Discovery Service). A few years ago, I tried putting that in Atom, and 
it worked just fine, using Atom as an envelope format, but there seemed 
little point other than that a regular Atom feed-reading Web browser 
would render the discovery resources somewhat nicely in the browser, 
which allowed an actual user to be able to browse and use the discovery 
resources through regular Web means.

The same could be accomplished by specifying an XSLT transform for XRD 
documents, and including a link to that in the XRD I guess. You could 
also choose HTML (with microformats) + CSS for something like that...

The important thing, regardless of the "format de jour", is the 
"resource model" that can underpin them all.

Cheers,

- johnk