Shalil Majithia Matthew S. Shields Ian J. Taylor Ian Wang Triana: A Graphical Web Service Composition and Execution Toolkit. 514- 2004 conf/icws/2004 ICWS http://doi.ieeecomputersociety.org/10.1109/ICWS.2004.118 db/conf/icws/icws2004.html#MajithiaSTW04