SoapConnection is used to create the Soap_proxy object with connection options that you set using SoapConnection object methods. Once a proxy object for a Web service is created, the client application can begin accessing the Web service. To invoke a Web service method, the proxy object must contain the following information:
End point of service, obtained from a WSDL file
Namespace definition used in the SOAP method call
Any structure definition, when applicable
An instance variable for each returned structure array, since all returned arrays are any
One or more SOAP methods and corresponding alias strings