Parse SOAP webservice dynamically

I would like to create an application where you can specify a webservice url and automatically get the input parameters of the output format. (similar to svcutil in Visual Studio I think), in how the user can dynamically add web services to the application and choose what data is going to be sent and what he is going to do with the return data.

So it seems to me that I have to go through the WSDL, do you know a good read or documentation about this? Or any advice from your experience? :)

Thanks in advance and kind.