Christian Dörner Torben Wiedenhoefer Mary-Ann Sprenger Volkmar Pipek SISO: simple service orchestration (video showcase). 575-576 2011 CSCW http://doi.acm.org/10.1145/1958824.1958913 conf/cscw/2011 db/conf/cscw/cscw2011.html#DornerWSP11