Howard D'Souza

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To most people, the term "Web service" implies a remote server offering some functionality that can be invoked over an HTTP connection, through SOAP-based messages. The ability to penetrate firewalls, as well as not having to install any code on the client side, makes it easy for service providers to quickly deploy and make their services available to a wide audience over a remote network. All that's needed is the service's definition, usually in the form of a WSDL file. While this remains a popular usage pattern for conventional SOAP-based Web services, an area that has been largely ignored is the use of Web services within a company's enterprise. One of SOAP's biggest criticisms has been that SOAP-based Web services don't perform as well as traditional distributed architectures like EJB or CORBA. There is some truth to this. If the client and server are colocated... (more)