This image shows the Source:ExternalPartnerSupplierMediator.xsd in the left side, containing the following entries:

<sources>
 client:WarehouseProcessResponse
  client:orderTotal
  client:deliveryDate

The XSLT File:ExternalPartnerSupplier.wsdl in the right side, containing the following entries:

<target>
 cb1:WarehouseResponse
    cb1:Warehouse
   cb1:deliverydate
   cb1:orderTotal

Items are mapped as follows:

client:orderTotal on the Source side is mapped to cb1:orderTotal on the XSLT File side.

client:deliveryDate on the Source side is mapped to cb1:orderTotal on the XSLT File side.