The machine readable version of rNews is in the works. As soon as we're done shaking out the bugs we'll post it to this site, hopefully in the next day or two.

~Evan Sandhaus

Posted at 12:05 AM on April 5, 2011

We now have a machine-readable version of the rNews specification at: http://dev.iptc.org/files/rNews/rnews.owl

Please note that this is a very rough draft and that we welcome all feedback on this document and will update and revise accordingly.

Posted at 4:01 PM on April 5, 2011

According to Michael, http://dev.iptc.org/files/rNews/rnews.owl does not load into Protégé 4.1.

Ref: http://lists.w3.org/Archives/Public/semantic-web/2011Apr/0063.html

Posted at 10:50 AM on April 6, 2011

The content-type of the ontology served is wrong (currently set to text/plain)

curl -I http://dev.iptc.org/files/rNews/rnews.owl
HTTP/1.1 200 OK
Date: Wed, 06 Apr 2011 15:23:14 GMT
Server: Apache/2.2.8 (Ubuntu) mod_jk/1.2.25 mod_ssl/2.2.8 OpenSSL/0.9.8g
Set-Cookie: JSESSIONID=53930B89BDB8D6D931D0EB9C2184CF1A; Path=/
Cache-Control: max-age=3600, must-revalidate
Accept-Ranges: bytes
ETag: W/"35501-1302034358000"
Last-Modified: Tue, 05 Apr 2011 20:12:38 GMT
Content-Length: 35501
Content-Type: text/plain

Posted at 11:30 AM on April 6, 2011

Raphael,

What content-type should we be sending?

~Evan

Posted at 10:14 AM on April 8, 2011

Evan,

• Per the RDF specification:

The Internet media type / MIME type for RDF/XML is "application/rdf+xml" — see RFC 3023 [RFC-3023] section 8.18.

• Per the OWL specification:

The Web Ontology Working Group has not requested a separate MIME type for OWL documents. Instead, we recommend to use the MIME type requested by the RDF Core Working Group, namely application/rdf+xml, or alternatively the XML MIME type application/xml.

As file extension, we recommend to use either .rdf or .owl.

If the ontology was using the N3 syntaxt, then I would have recommended the n3 mime type but this is not the case here.

Posted at 4:02 AM on April 9, 2011

Hi Raphael

what about the ontology at this URL: http://dev.iptc.org/rnewsowl - should have the correct MIME type.

I have to say that we have limited possibilities for tweaking the server of this site, this is a wiki system of a service provider.

Posted at 4:31 PM on April 11, 2011

Michael,

Yes, http://dev.iptc.org/rnewsowl is served with application/rdf+xml so this is good!

However, my browsers (firefox and opera) tell me that http://dev.iptc.org/rnewsowl is invalid XML. Syntax error on line 4, character 19 per http://www.w3.org/TR/REC-xml/#NT-doctypedecl

Posted at 9:15 AM on April 13, 2011

Raphael and everyone,

the XML errors should be fixed. http://dev.iptc.org/rnewsowl now opens without issues in Protégé for me.

Posted at 10:50 AM on April 13, 2011

Is there an RDF version of the vocabulary now? What is the correct namespace to use for rNews?

Posted at 4:51 PM on June 21, 2011

I'm afraid the ontology is not available anymore...

Posted at 7:14 PM on April 3, 2012