Definition of a Web Service

Web Services enable the exchange of Extensible Markup Language (XML) data messages between heterogeneous systems using standard Internet protocols. From a developer's perspective, a Web Service is similar to a COM object. Both implement black-box functionality that can be consumed by remote clients that know nothing about their physical implementation details. The concept of remotely accessing data and application logic isn't new; doing so in a loosely coupled fashion, however, is. Traditional technology, such as DCOM, IIOP, and Java/RMI, require tight integration between the client and the server and use platform-specific binary data format implementations to communicate. These implementations require a particular ...

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