(Web Services Description Language) The standard format for describing a web service. Expressed in XML, a WSDL definition describes how to access a web service and what operations it will perform. Usually pronounced "whizz-dul" (to rhyme with 'whistle'), WSDL is seen (with SOAP and UDDI) as one of the three foundation standards of web services.
stands for Web Service Definition Language. WSDL is an XML-based system used to design specifications to invoke and operate Web Services on the Internet. WSDL describes network services as a set of endpoints operating on messages containing either procedure or document-oriented information. The operations and messages are described abstractly, and then bound to a concrete network protocol and message format to define an endpoint. Related concrete endpoints are combined into abstract endpoints (services). Using WSDL, Web Services can be enabled to access and invoke remote applications and databases. XML