On 15/11/2007, Uldis Bojars wrote:
>
> Danny Ayers has spotted JEvent:
> http://dannyayers.com/2007/11/01/jevent

/me nods

> This can be interesting to the SIOC community too as its slides
> mention "Standardized message format based on RDF" as one of the
> things that are planned to do next.

Yeah - not sure which angle you have in mind, but I guess IM etc is
lurking on the edge of SIOC.

crschmidt's MeNow stuff is worth a look, if only as another example of
a grand schema looking for an implementation:
http://crschmidt.net/foaf/menow/

Personally I'm more intrigued by machine-machine messaging (never been
a fan of IM), it's something of a prerequisite for the agent-oriented
system building I've been contemplating. But as with the more human
stuff, there's an immediate problem in that HTTP isn't particularly
well suited for messaging, and another one might be that RDF isn't
that brilliant for changes (of resources) over time. Stuff around
Jabber/XMPP looks promising protocol-wise (e.g. SPARQL over Jabber,
and I think danbri got stpeter interested in possibilities a while
back). Some day I want to have a play with two (or more) level comms,
so if Jabber's available between two agents it gets used, otherwise
HTTP is the fallback - hence maintaining a direct connection to the
Web.

For resource changes Atom with RDF payload might well be useful - let
the Atom part take care of resource versioning.

Bill deHora's posted quite a bit on RDF-friendly messaging:
http://www.dehora.net/journal/

Cheers,
Danny.

--

http://dannyayers.com

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