2 <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
4 <xsd:documentation xml:lang="en">
5 Purchase order schema for Example.com.
6 Copyright 2000 Example.com. All rights reserved.
9 <xsd:element name="purchaseOrder" type="PurchaseOrderType"/>
10 <xsd:element name="comment" type="xsd:string"/>
11 <xsd:complexType name="PurchaseOrderType">
13 <xsd:element name="shipTo" type="USAddress"/>
14 <xsd:element name="billTo" type="USAddress"/>
15 <xsd:element ref="comment" minOccurs="0"/>
16 <xsd:element name="items" type="Items"/>
18 <xsd:attribute name="orderDate" type="xsd:date"/>
20 <xsd:complexType name="USAddress">
22 <xsd:element name="name" type="xsd:string"/>
23 <xsd:element name="street" type="xsd:string"/>
24 <xsd:element name="city" type="xsd:string"/>
25 <xsd:element name="state" type="xsd:string"/>
26 <xsd:element name="zip" type="xsd:decimal"/>
28 <xsd:attribute name="country" type="xsd:NMTOKEN" fixed="US"/>
30 <xsd:complexType name="Items">
32 <xsd:element name="item" minOccurs="0" maxOccurs="unbounded">
35 <xsd:element name="productName" type="xsd:string"/>
36 <xsd:element name="quantity">
38 <xsd:restriction base="xsd:positiveInteger">
39 <xsd:maxExclusive value="100"/>
43 <xsd:element name="USPrice" type="xsd:decimal"/>
44 <xsd:element ref="comment" minOccurs="0"/>
45 <xsd:element name="shipDate" type="xsd:date" minOccurs="0"/>
47 <xsd:attribute name="partNum" type="SKU" use="required"/>
52 <!-- Stock Keeping Unit, a code for identifying products -->
53 <xsd:simpleType name="SKU">
54 <xsd:restriction base="xsd:string">
55 <xsd:pattern value="\d{3}-[A-Z]{2}"/>