For network communication (and other stuff), I like sequence diagrams: https://en.wikipedia.org/wiki/Sequence_diagram https://en.wikipedia.org/wiki/Sequence_di

For network communication (and other stuff), I like sequence diagrams: https://en.wikipedia.org/wiki/Sequence_diagram https://en.wikipedia.org/wiki/Sequence_diagram There's a standardized UML version of this, but I think it's easier to read when the arrows are sloped a little, like in this random example: https://www.graffletopia.com/stencils/1560 https://www.graffletopia.com/stencils/1560