XGMML

XGMML (the eXtensible Graph Markup and Modeling Language) is an XML application based on GML which is used for graph description. Technically, while GML is not related to XML nor SGML, XGMML is an XML application that is so designed that there's a 1:1 relation towards GML for trivial conversion between the two formats.
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eXtensible Graph Markup and Modeling Language

Extensible Graph Markup and Modeling LanguageXGMML is an XML application based on GML which is used for graph description. XGMML uses tags to describe nodes and edges of a graph. The purpose of XGMML is to make possible the exchange of graphs between differents authoring and browsing tools for graphs. The conversion of graphs written in GML to XGMML is trivial. Using XSL with XGMML allows the translation of graphs to different formats. XGMML was created to be used for the WWWPAL System that visualizes web sites as a graph. Web Robots can navigate through a web site and save the graph information as an XGMML file. XGMML, as any other XML application, can be mixed with other markup languages to describe additional graph, node and/or edge information.(Definition adapted from the original specification document)Access the specification ...