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Some good stuff here, although there is still room for more details on the example diagrams ... technology choices, relationship intent, etc.
e.g. “why is the ABC Financial System communicating with the Analytics system?”
“What technologies are the various microservices built from?”
“What database technology is being used?”
“Is the Gateway doing authentication, or is there a link to the Identity Provider missing?”
If you need to ask questions like these, consider adding more information to the diagrams. And don’t forget to put yourself in an outsider’s shoes ... although the team knows that “we always use Oracle”, outsiders wont.
This notation checklist can help, even if you’re not using the #c4model -> c4model.com/assets/softwar…
