<definitions name=”SchoolLibrary” targetNamespace="http://www.school_library.com/Library.wsdl">
<xmlns:xsd=" http://www.w3.org/2001/XMLSchema ">
<message name="getBookRequest">
<part name="Title" type="xsd:string"/>
</message>
<message name="getBookResponse">
<part name="return" type="xsd:string"/>
</message>
<interface name=”LibInterface”>
<operation name="getBook">
<input message="getBookRequest"/>
<output message="getBookResponse"/>
</operation>
</interface>
<service> ...
</service>
<binding> ...
</binding>
</definitions>