I'm not sure I've met a consumer of diagrams who ever really wanted to know what's going on, so much as they wanted to have their pre-conceptions validated for

I'm not sure I've met a consumer of diagrams who ever really wanted to know what's going on, so much as they wanted to have their pre-conceptions validated for the brief time they're interested in the problem. I have had too many conversations with managers who want to talk about "pipelines" but then you ask how the system is handling dropped or failed messages and get a deafening silence or "just don't worry about it it's rare". People love arrows showing the "direction" data is going, but do things like assume that direction means "security" (it doesn't - any channel other then a full on data-diode is 2-way) or implies other operations (i.e. about storage).