CLARIN-2009-1 deliverable: Requirements Specification Web Services and Workflow Systems, Editors: Milan Agatonovich , Nuria Bel, Santi Bel, Marco Büchler, Dan Cristea, Fabienne Fritzinger, Erhard Hinrichs, Marie Hinrichs, Radu Ion, Marc Kemps-Snijders, Yana Panchenko, Victor Rodriguez, Helmut Schmid, Peter Wittenburg, Uwe Quasthoff, Martha Villegas, Thomas Zastrow. Internal Version: 1, June 22nd, 2009.