A web service is a machine-to-machine software system. It uses a variety of protocols to transfer data (specifically HTTP and XML). A web service is not a Web page or application, but rather a self-contained machine-to-machine interface over the Internet that uses open standards to communicate with other systems. It is self-describing using common XML semantics and discoverable through a discovery mechanism such as UDDI. For more details watch video at - https://www.mystream4u.com/watch/web-services-integration_Y8Bi92jn16XhmCl.html
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