Dependency Role Explorer
Concept
Foundational (no prerequisites)
Selected Edge Roles
Click any edge (arrow) to see how one concept can be a dependent of the concept below it and a prerequisite for the concept above it.
How to explore
  • Arrows point from a dependent concept to the prerequisite it needs.
  • Click an edge to label its two endpoints.
  • Hover a node to see its prerequisite and dependent counts.
  • The bottom node is foundational - nothing comes before it.