Data Capture- Swiped data processing.
DDA- (Demand Deposit Account) A standard checking account into which electronic funds can be transferred.
Debit Card- An ATM bankcard used to purchase goods and services and to obtain cash, Which will debit the cardholders personal deposit account. Requires a PIN (Personal Identification number) for use.
Decline- Response to a transaction request meaning that the issuing bank will not authorize the transaction.
Deposit- When a merchant closes a batch and sends the transaction to the host computer for settlement. Batches should be closed on a daily basis.
Discount Rate- Amount charged to the merchant by the acquiring bank for processing a transaction.
DUKPT- (Derived Unique Key Per Transaction) encryption method used to key pin's in debit transactions.