message createDocumentResponse
parts 
createCaseResponse
element doc:CreateDocumentResponse
used by 
Operation createDocument in PortType DocumentService
source 
<wsdl:message name="createDocumentResponse">
  <wsdl:part name="createCaseResponse" element="doc:CreateDocumentResponse"/>
</wsdl:message>

WSDL documentation generated by XMLSpy WSDL Editor http://www.altova.com/xmlspy