Other XML Technologies
Several other XML technologies are used in the ASP.NET framework besides those that Microsoft has written. The framework also uses several other standards written by the W3C, such as the Web Service Description Language (WSDL), and the Simple Object Access Protocol (SOAP). These languages are often found when building and consuming XML Web Services for your application.
The Web Service Description Language (WSDL)
In many web applications, the information you want to use for one server is available only on another server. For example, a database server contains information, such as an inventory, and a farm of web servers wants to use that information to present it to a client. Before .NET, this was accomplished using the ...