Google News
Web Services - Interview Questions
What are the disadvantages of SOAP web services?
These are some of the important disadvantages of SOAP web services :
Slow : It uses XML format that must be parsed to be read and defines many standards that must be followed while developing the SOAP applications. So it is slow and consumes more bandwidth and resource.

WSDL Dependent : It uses WSDL and doesn't have any other mechanism to discover the service.