This image shows the Source:UpdateOrder.wsdl in the left side, containing the following entries:
<sources> tns:UpdateOrderStatus tns:orderId tns:orderStatus
The XSLT File:OrderProcessor.xsd in the right side, containing the following entries:
<target> updateOrderStatus orderId orderStatus
It shows items mapped from inp1:orderInfoVOSDO on the Source side to the opaque:opaqueElement on the XSLT File side.