Problem Statement A car dealership wants to install a computer system to manage its operations. The system will be used by sales-reps to enter customer information, and any purchase orders made by a customer. The service department requires a database of parts available in stock. Required parts can be ordered from the parts suppliers. A service-rep can lookup parts, order parts if not available and document works done on a particular work order. The finance department can track parts-orders customer-orders and work orders and payroll to determine profitability and provide a financial statement of the dealership business operation Task 4 - UML State Diagram Show the state diagram of the Purchase order and Work order