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2003 Survivor's Guide to Business Applications

Web services technology is the exposure of specific business functions through an open standard that allows access to data from other Web-services-enabled business applications. In the past, if you wanted to access data from an application, you generally had to develop custom code to determine the application-specific protocol. With Web services, the same methods of accessing the data are offered via a defined, open protocol known as SOAP (Simple Object Access Protocol), using XML (Extensible Markup Language) to transfer data to and from the application.

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