Directed Graph Markup Language (DGML) is an XML-based file format for directed graphs.
Introduction to DGML
Here is what a simple directed graph with three nodes and two links between them looks like
<?xml version="1.0" encoding="utf-8"?> <DirectedGraph xmlns="https://schemas.microsoft.com/vs/2009/dgml"> <Nodes> <Node Id="a" Label="a" Size="10" /> <Node Id="b" Background="#FF008080" Label="b" /> <Node Id="c" Label="c" Start="2010-06-10" /> </Nodes> <Links> <Link Source="a" Target="b" /> <Link Source="a" Target="c" /> </Links> <Properties> <Property Id="Background" Label="Background" DataType="Brush" /> <Property Id="Label" Label="Label" DataType="String" /> <Property Id="Size" DataType="String" /> <Property Id="Start" DataType="DateTime" /> </Properties> </DirectedGraph>
which looks like this:
The complete XSD schema for DGML is available at . DGML not only allows describing nodes and links in a graph, but also annotating those nodes and links with any user defined property and/or category.
See also DOT (graph description language) Graphviz Microsoft Visio Graph Modelling Language
External links https://msdn.microsoft.com/vstudio homepage of Visual Studio https://schemas.microsoft.com/vs/2009/dgml page describing the XSD schema for DGML http://www.lovettsoftware.com contains videos showing how to use DGML graphs in Visual Studio https://msdn.microsoft.com/en-us/library/dd409365.aspx, documentation on how to use DGML DGML might also mean Document Graph Markup Language: https://www.docugami.com/ Docugami’s agentic AI transforms unstructured documents https://www.dgml.io/ Apache 2.0 Licensed · Open Standard https://github.com/dgml-io Github DGML
References