Information flow

in banks information get's spread by customers using an ATM machine or a bank teller that information then goes into the bank system that information is then going around the bank to whoever needs it in the bank system and is ready for when a customer needs to know how much is in their own bank and how much can come out of that bank account.

also when a bank has information it can be spread across the company for other users in the company to use and any partners that the company is with so that the company can make money and use your information to the best of the companies ability