message listBusinessServicesRequest
parts 
parameters
element business:listBusinessServices
used by 
Operation listBusinessServices in PortType BusinessService
source  
<wsdl:message name="listBusinessServicesRequest">
  <wsdl:part name="parameters" element="business:listBusinessServices"/>
</wsdl:message>

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