[foaf-dev] Re: [OpenID] openid, foaf and attribute exchange
henry.story at bblfish.net
Wed Jul 25 23:12:26 BST 2007
On 25 Jul 2007, at 15:16, Mark Wahl wrote:
> Story Henry wrote:
>> - duplicating effort. This spec is inventing a metadata format,
>> a query language and storage API, which is a lot of work. These
>> things have been done before:
>> + metadata framework: as shown above RDF does this very
>> well already. It has a very powerful semantics, has gone through
>> years of review by some of the best thinkers in the world, is
>> extensible, self describing, etc, etc... having to learn another
>> special convention as proposed here, is one more unnecessary
>> piece of work.
> Actually there has not yet been defined a suitable protocol-
> indepdendent metadata format for identity
> schemas elements such as attribute types
> and claim types. "RDF" by itself is insufficient as there has not yet
> been defined ontologies for identity schemas.
mhh.. Not sure I understand. Yes there are some relations that need
to be defined, but that's not
> To address this the
> Identity Commons Identity Schemas working group is defining a
> common set
> of metadata representation elements for OpenID (and CardSpace and
> emerging protocols); a work-in-progress can be seen at
I proposed a couple of relations in my recent post
Is this the kind of relation you are working on there? I could not
find any relations defined there yet.
> which can be expressed in RDF and retrieved via "GET", as described in
That looks like a formalization of the RDF linked data practice. It
is pretty simple right,
you do a GET on a URL and you will get a representation back in rdf/
xml if you do your content negotiation right.
I think I also noticed an error in your GET request
GET /schema.rdf#age HTTP/1.1
I think one does not do GETs on URLs containing a #. You have to
remove everything after and including the #.
> Mark Wahl
> Informed Control Inc.
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