On the whole I think that the value of "diagrams as the source of truth" turned out to be almost non-existant for much the same reasons that mostly we prefer source code over visual programming environments.
Flowcharts were never all that useful (to me at least) because they were harder to read than the pseudocode!
I use draw.io (diagrams.net) or Miro depending on what's in commonest use at the current Org for informal data flow diagrams and the like. Does Microsoft have some kind of Visio descended monster in Office 365? I hope I never have to find out!
I use PlantUML¹ for sequence diagrams² and state diagrams. So much so that I wish GitHub and its brethren would support PlantUML natively in their flavours of Markdown.
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¹The IntelliJ plugin is mercifully good
²Or swimlanes.io is quite good for these, especially for sharing ephemeral stuff
On the whole I think that the value of "diagrams as the source of truth" turned out to be almost non-existant for much the same reasons that mostly we prefer source code over visual programming environments.
Flowcharts were never all that useful (to me at least) because they were harder to read than the pseudocode!
I use draw.io (diagrams.net) or Miro depending on what's in commonest use at the current Org for informal data flow diagrams and the like. Does Microsoft have some kind of Visio descended monster in Office 365? I hope I never have to find out!
I use PlantUML¹ for sequence diagrams² and state diagrams. So much so that I wish GitHub and its brethren would support PlantUML natively in their flavours of Markdown.
---
¹The IntelliJ plugin is mercifully good
²Or swimlanes.io is quite good for these, especially for sharing ephemeral stuff