Question

DRAW THE USE CASE DIAGRAM FOR BELOW FLOW OF EVENTS

Name : Order Processing

Participating actors : Employee, customer, system

Entry condition : Customer is ready to make an order with an employee

Basic flow of events :

1. Customer gives relevant details which includes ; name, delivery address and order quantity
2. Employee records all details on the system
3. System processes the order and generates an invoice with all details
4. Customer pays for the order
5. Employee forwards the order to logistics where the order is prepared
6. The order is then forwarded to the driver who checks the condition of the order and proceeds with delivery
7. The driver delivers the order to the destination address as mentioned by the customer
8. The driver notifies the employee about the successful delivery of the order

Alternative flow of events :

1. If at step 4 of the basic flow, the customer does not have sufficient amount of money to pay the order, the latter is cancelled and the use case ends
2. If at step 7 the customer is not present to take the order from the driver, the driver returns back with the order and informs the employee of the unsuccessful delivery. The use case ends.

Exit condition :

Customer has his order

Answer 1

This is the use case diagram for the order processing flow of events.