difference between rpc/lit and doc/lit

[Mark Hansen]

Is the only difference between rpc/lit and doc/lit that the rpc/lit 
style wraps the parameters (parts) in the method (operation) name?  Is 
the purpose of the rpc/lit style to use the method wrapper as a way to 
implement the WSDL allowed mapping of multiple binding ports to a single 
URL?

Thanks for any clarification,
Mark