%0 Conference Paper %B 2006 IEEE International Conference on Services Computing %D 2006 %T Control the Flow: How to Safely Compose Streaming Services into Business Processes %A Bioernstad, Bioern %A Pautasso, Cesare %A Alonso, Gustavo %C Chicago, USA %X Although workflow languages are widely used for composing discrete services, these are not suitable for stream based interactions. In this paper we address the problem of how to extend a conventional Web service composition language with the ability to deal with data streaming services. The paper discusses several modeling alternatives and presents a marker based semantics for safely dealing with pipelined processing in service compositions. The paper also presents application examples that illustrate the advantages of the proposed approach