> The book 'Software Architecture: The Hard Parts' is probably a path forward for you, but any books on modern data architecture would be. I'll send you some b

> The book 'Software Architecture: The Hard Parts' is probably a path forward for you, but any books on modern data architecture would be. I'll send you some books to read, too. > Hint: even your ATM card doesn't use ACID I guarantee you that the actual database handling those ATM transactions is ACID-compliant. The banking institution itself couldn't even be certified by the FDIC or the Comptroller of the Currency (OCC) if their database system wasn't, at the very least, ACID compliant. Out-of-band transaction resolution is a completely separate topic and has nothing to do with databases, or ACID, or anything else. You're kinda out of your depth here...