Need of Web Services
There are many advantages of using web services. The main advantage over a regular HTTP application is that it uses SOAP messaging which is much more efficient and less bandwidth costly. Another advantage is that Service Transport, XML Messaging, Service Description, and Service Discovery layers use a standard protocol which makes it easy for developers to develop functionality irrespective of programming languages. Suppose you are a provider of a service, say weather forecast. Why make developers, go to your website , scrap your page and then extract the data that they need? Wouldn't it be easier to develop this by web service that a developer can pass in a date and get back a well defined XML document containing all the info they need? The same happens for all type of cases... We use web services because: Exposing the existing function on to network: A Web service is a unit of managed code that can be remotely in...