Could I draw your attention to some work that went on in the UK over the summer on profiling the web service specifications to build web service grids. http://www.omii.ac.uk/web_service_grids.htm Steven -- ---------------------------------------------------------------- Dr Steven Newhouse Tel:+44 (0)2380 598789 Deputy Director, Open Middleware Infrastructure Institute (OMII) Suite 6005, Faraday Building (B21), Highfield Campus, Southampton University, Highfield, Southampton, SO17 1BJ, UK