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RDF Graph Modelling Language

• To: "XML Developers List" <xml-dev@l...>
• Subject: RDF Graph Modelling Language
• From: "bryan rasmussen" <rasmussen.bryan@g...>
• Date: Sat, 29 Jul 2006 23:06:36 +0200
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I have a project for which RDF would be a reasonable choice, I just
had to find a syntax I found amenable. I find RGML has that syntax, no
doubt due to its similarities with GML.

I especially like that the nodes and edges of my graph are clearly
marked up as such, because I think it helps to clarify the underlying
graph, I often just want to look at my source quickly instead of
generating a view of a Graph.

The thing I worry about is: will an RGML based application be able to
take advantage of all the wonderful logical reasoning capabilites of
tools using RDF (which I always hear about but don't care that much
about, and probably shouldn't care about here but I do so hate to lose
out any possible functionality)

Also I was thinking that I might want to use Sparql for the
application, which will entail learning the language of course but
from what I've seen it is simple enough. Will Sparql be reasonably
useful given that in analysing a graph I will have to say something
like (pseudo follows):

Select All Nodes from Graphs where Node Identifier starts-with
http://graphs.x.com/data with Edges.Count > 4

or

-Select All Edges with target Nodes with dc:format = "text/html"
  - Get Source Nodes of above Edges



... and so forth.

Cheers,
Bryan Rasmussen

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