Diagram

A diagram is a symbolic representation of information using visualization techniques. https://en.wikipedia.org/wiki/Diagram Thinking Tool

List from Abby Covert's How to Make Sense of Any Mess

• Make a block diagram that shows how the pieces of a concept interrelate.
• Demystify a process by making a flow diagram.
• Break your latest project down into its individual tasks and make a Gantt chart.
• Compare a group of restaurants in your neighborhood in a quadrant diagram (2x2).
  • for more than 2 dimensions: a spiderweb chart (or radar chart)
• Explore what happens when concepts or objects overlap using a Venn diagram.
• Break any multi-user process into a list of tasks per user with a swim lane diagram.
• Depict the content and organization of your favorite website in a hierarchy diagram.
• Unload all of the cool ideas in your mind right now in a mind map.
• Explain how to make your favorite food with a simple schematic. Bonus point for exploding it!
• Make a journey map of a day in your life.

see also Fishbone Diagram, Diagram of Effects, Graph Drawing, Whiteboard, 2x2

Excalidraw

OpenOffice-Draw

• has connectors that work (follow moved node)
• export acs SVG! (but not a native format, and can't import it!)
• doesn't appear to auto-word-wrap text within nodes, and SVG rendering is pretty bad