What does WSDL stand for?
WSDL stands for Web Services Description Language. It is an XML representation of the web service interface.
There are two parts of the operations specified in the WSDL file, as shown by the attribute of the file.
1. Document oriented operations -- are the ones which have XML documents as input and output
2. Result oriented operations -- are the ones which have input parameters as the input message and result as the output message