DIBS (DeCA Interactive Business System) is DeCA's primary resale automated business system in use at all commissaries to handle ordering and receiving of commissary store products for resale; preparing and creation of financial transactions to debit and credit store accounts; and transmission of financial data to systems outside the agency for payment or collection. It has a number of subsystems: DOORS (DeCA Overseas Ordering and Receiving System), FDS (Frequent Delivery System), DSD (Direct Store Delivery), and DSD-S (Direct Store Delivery-Single order).