Shows the schema for the purchase order, PO. This is the design view and includes the following: PO, with a sequence icon leading to three elements, header, billing, and 1 to unbounded number of destination elements. The header includes attributes status, order-state, and customer-value. The billing element includes a sequence icon leading to address and payment elements. The destination element includes a sequence icon with: an address element, 1 to unbounded number of item elements, and 0 to unbounded number of shipment elements. The destination element includes the status attribute. The address element includes no attributes. The item element includes the attributes: ID, status, quantity, availability-date, qoh, and price. The shipment element includes ship-date and method attributes. There is also a top level Status simpletype, at the PO level.