Date: Oct. 2, 2000
Link: http://www.cs.rpi.edu/~puninj/XGMML/draft-xgmml.html
Source Author or Organization: John Punin

Extensible Graph Markup and Modeling Language (XGMML) is an XML application based upon Graph Modeling Language (GML) that uses XML to describe graphs rather than GML's text format. A graph is defined as a set of nodes and a set of edges.

XGMML can be used for general graphing (the site shows an example of a PowerPoint presentation expressed as a graph), to exchange graphs between authors using differing systems, to visualize web structure (where the web pages are nodes, and the hyperlinks are edges), or to graphically represent Resource Description Framework (RDF) data.