Define Web Service and Uses..?

Web Service is set of application protocols of business logic,it is platform Independent.

It links all platforms(mobile ,web, windows,POS).

A web service is any piece of software that makes itself available over the internet and uses a standardized XML or Json messaging system. XML is used to encode all communications to a web service.

But now it's an old-fashioned technique, and now there's the API which is a software intermediary that allows two applications to talk to each other. Each time you use an app like Facebook, send an instant message, or check the weather on your phone.

A web service is  a mechanism mostly in the form of a software for communication between two machines using the request response model where the server is the client is your requesting body and the sever is the one accepting the requests and responding to them.

Communication takes place between devices using  HTTP using standards such as WSDL and SOAP which are XML based and more recently REST which is JSON based.

A Web service is a software service used to communicate between two devices on a network.

More specifically, a Web service is a software application with a standardized way of providing interoperability between disparate applications. It does so over HTTP using technologies such as XML, SOAP, WSDL.

Web services is a medium of communication between 2 hetrogineous applications in form of SOAP or REST .

A web service is any piece of software that makes itself available over the internet and uses a standardized XML messaging system. XML is used to encode all communications to a web service