I am wondering how to properly draw a supervision tree: I have earlier worked with UML diagrams, and I have used multiple computer tools in the past ( nomnoml, draw.io, and paid solutions like gliffy ), after sketching on paper by hand.
My question: Is there a good (maybe standardized?) way to draw supervision trees? Especially I am wondering how to indicate that something starts multiple processes, what processes communicate (even though they might not be siblings in the supervision-structure) and how to indicate the different supervision strategies that are used?
Also, are there any tools that are really good at making these kind of diagrams?