I would like to visualize the data first and foremost as a directed graph. Then perhaps also as a dependency matrix, but I'll deal with that later. Now, I've been looking into using graphviz to ...

Use your favorite method of software installation to get GraphViz on your system. GraphViz is comprised of the following programs and libraries. The dot program: a utility program for drawing directed ...

GraphViz is a tool that can be used to generate these link graphs. Unfortunately, the input format for GraphViz is a DOT file, which is a fairly complicated representation of a link graph.