from
The Free On-line Dictionary of Computing (8 July 2008)
Web Service Definition Language
WSDL
<architecture> (WSDL) An {XML} format for describing network
{services} as a set of endpoints operating on messages
containing either "document oriented" or "procedure 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).
WSDL is typically used with {SOAP} over {HTTP} but it is
extensible to allow description of endpoints and their
messages independent of what message formats or network
protocols.
[Reference?]
(2004-06-21)