需求
“Draw an ATM transaction flow: insert and read a card, validate the PIN with a three-attempt limit, capture the card and show an error after too many failures, otherwise select withdrawal, balance inquiry, deposit, or transfer; complete each valid transaction with a receipt, return the card, and end.”
接著試試Add a daily withdrawal limit check.Add a language selection after card insertion.
這張圖裡有什麼
看懂背後的決策。
01
Attempts < 3?
Use for designing ATM software, documenting user flow, or training support staff on transaction and error handling.