This chapter demonstrates how a Web Service acts as a middle tier to Web pages hiding and abstracting the data source from the Web page or application developer. This is useful because the method and data source can change without affecting what could be thousands of consumers.
Another advantage to using Web Services is that it is likely that you already have the hardware in place to deploy them. It’s far more likely that your people possess the skills to deploy the technology. This may not be the case when using COM+ or CORBA as a middle tier.