are specialized structures that allow computer-based systems to store, manage, and retrieve data very quickly.

Enterprise Information: For customer, product, and purchase information.

Enterprise Information: For payments, receipts, account balances, assets and other accounting information.

Enterprise Information: For information about employees, salaries, payroll taxes and benefits, and for generation of paychecks.

Enterprise Information: For management of the supply chain and for tracking production of items in factories, inventories of items in warehouses and stores, and orders for items .

Enterprise Information: For sales data noted above plus online order tracking, generation of recommendation lists, and maintenance of online product evaluations.

For customer information, accounts, loans, and banking transactions.

For purchases on credit cards and generation of monthly statements.

For storing information about holdings, sales, and purchases of financial instruments such as stocks and bonds; also for storing real-time market data to enable online trading by customers and automated trading by the firm.

For student information, course registrations, and grades (in addition to standard enterprise information such as human resources and accounting).