Generated SOAP-based web services can be imported into Taverna Workbench using their WSDL definitions. Their structure is quite similar to originated BioMoby services. Because generated datatypes reflect an original BioMoby datatype set, it is also possible to create workflows with these services.
Here is a simple Taverna workflow that chains two web services together:
... and how it looks like in Taverna 2.4.0: