Figure 1: Sample XML document with customer orders.
<BookedOrders xmlns:xsi="http://www.w3.org/2000/10/XMLSchema-instance"> <CustomerOrder> <OrderID>1000</OrderID> <Customer>XYZ Inc.</Customer> <Item>Steel</Item> <Unit>Ton</Unit> <Quantity>2.8</Quantity> </CustomerOrder> <CustomerOrder> <OrderID>1001</OrderID> <Customer>ABC Inc.</Customer> <Item>Plastic</Item> <Unit>Roll</Unit> <Quantity>30.5</Quantity> </CustomerOrder> </BookedOrders>