Web Services are the means by which devices communicate over the World Wide Web and uses the standardized XML messaging system. XML is used to encode all communications to a web service. For example, a client invokes a web service by sending an XML message, then waits for a corresponding XML response. As all communication is in XML, web services are not tied to any one operating system or programming language.
The basic web service platform is XML plus HTTP. All the standard web services work using the following components:
A web service enables communication among various applications by using open standards such as HTML, XML, WSDL, and SOAP. It takes the help of
Consider an Order processing system. The client uses the Frontend client application to send the request for the orders. The processing backend logic will be written in some programming language and resides in the server, which also interacts with the database system to store the data.
The steps performed are: