WSIF (the "Web Services Invocation Framework") is
a WSDL-based API for invoking WSDL-described
services. WSIF developers interact with Web
Services at the abstract level through their WSDL
descriptions. This is done independently of APIs
specific to a message format or network protocol
(eg SOAP APIs). With WSIF, developers work with
the same programming model regardless of how the
Web service is implemented and accessed.
