XSD formally describe elements using a schema to describe in an abstract way an object's characteristics, and relationships to other objects.
In essence, when you expose a WCF Endpoint, you are exposing a Service endpoint, that contains Operations (Methods) that accepts and returns Request and Reponse arguments. The WSDL describes the Service and its operations, and refers to separate XSD documents, used to describe the arguments.
* Considerations:
<?xml version="1.0" encoding="utf-8"?>
<xs:schema elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:element name="Address">
<xs:complexType>
<xs:sequence>
<xs:element name="Recipient" type="xs:string" />
<xs:element name="House" type="xs:string" />
<xs:element name="Street" type="xs:string" />
<xs:element name="Town" type="xs:string" />
<xs:element name="County" type="xs:string" minOccurs="0" />
<xs:element name="PostCode" type="xs:string" />
<xs:element name="Country" minOccurs="0">
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:enumeration value="IN" />
<xs:enumeration value="DE" />
<xs:enumeration value="ES" />
<xs:enumeration value="UK" />
<xs:enumeration value="US" />
</xs:restriction>
</xs:simpleType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>
## Resources ##