GraphViz

From Open Risk Manual

GraphViz

Graphviz is the open source graph visualization software used in the Open Risk Manual for representing structural information such as diagrams of abstract graphs and networks.

Features

The GraphViz layout programs take descriptions of graphs in a simple text language, and make diagrams in useful formats, such as images and SVG for web pages; PDF or Postscript for inclusion in other documents; or display in an interactive graph browser. Graphviz has many useful features for concrete diagrams, such as options for colors, fonts, tabular node layouts, line styles, hyperlinks, and custom shapes.

Documentation

Documentation for using GraphViz is available here