Most adults have used an Automated Teller Machine (ATM) card in their lifetime. But these machines, as high-tech as we imagined they were back in the day, had a design flaw that caused a lot of users a lot of trouble.
Human Error Problem: ATM users would insert their cards, request cash, take it, and walk away, leaving their cards behind.
Solution: a “forcing function” was as simple as a 15-minute code update sent out to all the ATMs in a matter of seconds.
So what is a “forcing function,” and how did it fix the problem of the forgotten ATM card?