Web Services Interoperate as Distributed (Systems) Based on Trust
Web services are a new breed of Web application. The authors are self-contained, self-describing, modular applications that can be published, located, and invoked across the Web. Web services perform functions, which can be anything from simple requests to complicated business processes. Web applications are independent of plat form. They can available in the form of a set of function in web by address. Web Service is separated from the other available technologies because of using XML and some other standards technology such as SOAP, WSDL and UDDI. Once a web service is deployed, other applications are able to discover and invoke the deployed service.