WSDL 2.0 Structure
Description document:
<description targetNamespace="…">
Message formats (schema types):
<types> … </types>
Abstract interface of the service:
<interface> <operation> … </operation>* </interface>
Binding of these messages to a protocol:
<binding> … </binding>
Location of the service:
<service> <endpoint> … </endpoint>* </service> </description>