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Use case name: Make Order Request Summary: Customer enters an order request to purchase a catalog item. The customer's credit card is checked for validity and sufficient credit to pay for the requested catalog tems. Actor: Customer, Bank ondition: Customer has selected a catalog item. Main sequence: 1. Customer provides order request and customer account Id/password to pay for purchase 2. System retrieves the customer's credit card number from the customer account. 3. System requests to a bank checking the customer's credit card for the purchase amount and, if approved, Bank creates a credit card purchase authorization number. 4. System creates a delivery order containing account Id, item, quantity, total price, and credit card authorization number, and store the delivery order. 5. System confirms approval of purchase and displays order information to customer