Just like ASP.Net 2.0 Windows Communication Foundation (WCF) uses Web Service Description Language (WSDL 1.1 - http://www.w3.org/TR/wsdl) to describe services. One item that seems overlooked in WCF is the Description property from an attribute on a Web Service or Web Method.
In ASP.Net 2.0, you can easily add a description to a Web Service or Web Method using an attribute above the class or method. See example below.
[System.Web.Services.WebService(
Namespace="http://servername/xmlwebservices/",
Description="Some descriptive text could go here.")]
public class Service1 : System.Web.Services.WebService
{
// Implementation code.
}
Out of the box, WCF doesn't support a description property for Web Service (Service Contract) or Web Method (Operation Contract). Instead, you must extend WCF to support this capability. Fortunalty, WCF is extremely extensible and below is a list of potential solutions:
Custom WSDL Publication - http://msdn2.microsoft.com/en-gb/library/aa717040.aspx
WSDL Documentation Sample - http://wcf.netfx3.com/files/folders/service_contract_snippets/entry4538.aspx