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4.11. Web Services Description Language (WSDL)
The Web Services Description Language (WSDL) is an XML-based language that is used to define Web service interfaces. An application that consumes a Web service parses the service’s WSDL document to discover the:
- location of the service
- the operations that the service supports
- the protocol bindings the service supports (SOAP, HTTP, etc)
- access procedure
For each operation, the WSDL describes the interface format to which the client must adhere.