Office 2003 XML

Schema Parts

The simple schemas in Examples Example C-2 and Example C-3 use a lot of pieces of XSD, and you can use them as models for future schemas, but there are a lot more options available, even in the most readily usable subset of XSD.

Namespaces

The only namespace declaration to appear in either example was the namespace declaration for XSD itself:

 xmlns:xs="http://www.w3.org/2001/XMLSchema"

In this case, the schema was defining a vocabulary that was not in a namespace, so there was no need to define an additional namespace. If, as is typical, your schemas define vocabularies that are in a namespace, you’ll need to define the namespace on the root xs:schema element. Example C-4 shows a slightly modified version of Example C-3, defining the vocabulary as belonging to the http://simonstl.com/ns/authors/ namespace. Changes to the schema appear in bold.

Example C-4. Example C-3 rewritten to support a namespace

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" 
           targetNamespace="http://simonstl.com/ns/authors/"
           xmlns="http://simonstl.com/ns/authors/" 
           elementFormDefault="qualified"
           attributeFormDefault="unqualified" > <xs:element name="authors"> <xs:complexType> <xs:sequence> <xs:element maxOccurs="unbounded" ref="person"/> </xs:sequence> </xs:complexType> </xs:element> <xs:element name="person"> <xs:complexType> <xs:sequence minOccurs="0"> <xs:element ref="name"/> <xs:element ref="nationality"/> </xs:sequence> <xs:attribute ref="id" use="required"/> ...