message allocateWorkItemRequest
parts 
allocateWorkItemDoc
element dto:allocateWorkItem
used by 
Operation allocateWorkItem in PortType WorkItemManagementService
source  
<wsdl:message name="allocateWorkItemRequest">
  <wsdl:part name="allocateWorkItemDoc" element="dto:allocateWorkItem"/>
</wsdl:message>

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