Draw an activity Diagram and class diagram by using UML notationfor the following use case.Usecase: ProcessOrder Actor: Customer Type: Primary and EssentialMain Success Scenario1) Customer...

Draw an activity Diagram and class diagram by using UML notation for the following use case. Usecase: ProcessOrder Actor: Customer Type: Primary and Essential Main Success Scenario 1) Customer initiates the Pizza Ordering process by coming to Pizza Ordering System. 2) System presents Pizza Menu. 3) Customer selects the Pizza of their choice 4) System adds the pizza to order 5) Customer can order more than one pizza in their order by repeating Step 3 and Step 4 6) Customer request total bill and then System generates a total bill to Customer 7) Customer provides name and delivery address 8) System presents payment options (Cash on delivery or Pay by credit card) 9) Customer selects payment option. 10) System generates an order receipt, and records it in OrderRegister and displays the order receipt to customer. Post-Conditions: Pizza Order is complete, Payment method selected, and Order receipt has been issued Alternative Course of Events 9a) Customer selects Payment by Credit Card option 10) System refers Customer to Card Payment procedure (refer to PaybyCredit Usecase) 11) System generates an order receipt, and records it in OrderRegister and displays the order receipt to customer.