2 <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
3 <xsd:complexType name="PurchaseOrderType">
6 <xsd:element name="shipTo" type="USAddress"/>
7 <xsd:element name="billTo" type="USAddress"/>
8 <xsd:element name="items" type="Items"/>
11 <xsd:element ref="comment" minOccurs="0" maxOccurs="unbounded"/>
14 <xsd:attribute name="orderDate" type="xsd:date"/>