This workflow demonstrates interaction with an instance of an omixed server (omixed.org) hosting a very simple model and containing some sequence files.  The server is available for public access so you should be able to try this out. Notes: With the versions of Taverna and Axis2 I am using, I had to massage the WSDL emitted by Axis2 in order to keep Taverna happy.  This involved removing the sections relating to SOAP12. The workflow first connects to the server and obtains a ses...