message enableWorkItemRequest
parts 
enableWorkItemDoc
element dto:enableWorkItem
used by 
Operation enableWorkItem in PortType WorkItemSchedulerService
source  
<wsdl:message name="enableWorkItemRequest">
  <wsdl:part name="enableWorkItemDoc" element="dto:enableWorkItem"/>
</wsdl:message>

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