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interaction. WSDL provides a language- and platform-independent way to
specify the interface offered by a service. A WSDL document consists of two
parts. The first part describes in an abstract manner the operations, input and
output parameters, and data types. The second part, which consists of a bind-
ing and implementation interface, specifies the transport protocol, message
format, and service endpoint network address. The Universal Description,
Discovery, and Integration (UDDI) specification defines a standard way of
registering, deregistering, and looking up services. The last standard, WS-I
Basic Profile, promotes the interoperability of services operating on differ-
ent platforms by specifying additional constraints and clarifications on the
aforementioned standards.
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