ABSTRACT
Traditionally, web services, or “big web services”—to distinguish them from other services running on the web using different paradigms, such as stateless Representational State Transfer (REST) interfaces—have been popular with the traditional enterprises. A web service is a resource provided by a particular provider described in terms of its allowed operations in a common language, that is, the Web Service Description Language (WSDL). Knowing the WSDL description, a client (consumer) can invoke each operation by sending a request contained in a particularly formatted body. After the execution, a response is returned.
