- From: Dan Brickley <danbri@danbri.org>
- Date: Mon, 19 Jun 2006 04:48:18 -0400
- To: Hans Teijgeler <hans.teijgeler@quicknet.nl>
- Cc: SW-forum <semantic-web@w3.org>, "Paap, Onno" <onno.paap@gmail.com>
* Hans Teijgeler <hans.teijgeler@quicknet.nl> [2006-06-19 10:24+0200] > Hi, > > When trying to use SPARQL one stumbles upon the concept of "endpoint". When > I checked in the (Candidate) Recommendation the word endpoint is not used at > all. Yet, when you use Google you get many deliberations about endpoints, > but nowhere a definition or standardization. How come? Where can I find > reading material about (SPARQL) endpoints that doesn't assume that I already > know what it is? Interesting point. The word I think comes from the SOAP community, but I looked in the SOAP specs and similarly found only casual mention of it there. Hunting further, I find it in the "normative definitions" section of the Web Services Description Requirements doc at http://www.w3.org/TR/ws-desc-reqs/#normDefs [[ EndPoint (AKA Port) [Definition: An association between a fully-specified InterfaceBinding and a network address, specified by a URI [IETF RFC 2396], that may be used to communicate with an instance of a Web Service. An EndPoint indicates a specific location for accessing a Web Service using a specific protocol and data format.] ]] That last phrase is applicable; perhaps the entire definition even, since the protocol uses WSDL. > > I also have a direct question: what is the difference between a URI and an > endpoint? Somewhere I read a discussion about this, but the participants in > that discussion didn't seem to agree with each other, so it seems that I am > not completely alone in my ignorance. URIs are identifiers, basically names for things on the Web. Endpoints, like many other things, can be named with URIs. There's a lot more about URIs in http://www.w3.org/TR/webarch/ Hope this helps, Dan > Can someone help me? > > Regards, > Hans > > ____________________ > OntoConsult > Hans Teijgeler > ISO 15926 specialist > Netherlands > +31-72-509 2005 > HYPERLINK "http://www.infowebml.ws/"www.InfowebML.ws > HYPERLINK "mailto:hans.teijgeler@quicknet.nl"hans.teijgeler@quicknet.nl > > > > -- > No virus found in this outgoing message. > Checked by AVG Free Edition. > Version: 7.1.394 / Virus Database: 268.9.0/368 - Release Date: 16-Jun-06 >
Received on Monday, 19 June 2006 08:48:30 UTC