- From: Evren Sirin <evren@cs.umd.edu>
- Date: Mon, 8 Sep 2003 19:48:42 -0400
- To: <charlie@semantech.org>, <www-ws@w3.org>
> > > Hi all, > The present DAML-S examples, congo and bravoair, are both built in a top-down > manner. Is it possible to build similar services in a bottom-up approach? I > envision quite some difficulty if one wants to create a composite service by > making use of the specified control constructs of the process model. > > Has anyone tried to do this? Actually, yes. We have built a DAML-S composer that guides the user to create composite processes in a bottom-up approach. User starts with a single service, presented with possible services that can be matched with it, filters the results according to non-functional attributes of the services. The resulting composite service can be executed using the WSDL groundings. However, GUI is data-flow oriented rather than control flow oriented so, as you suggest, you cannot make use of control constructs such as loops and conditionals. Check out http://www.mindswap.org/~evren/composer where you can find links to some sample service descriptions, a paper that describes the system and an online demo of the system. Best, Evren > > Any pointers and/or comments are welcome. > > Regards, > > Charlie > > ------------------------------------------------- > Charlie Abela > Research Student, > Dept. of Computer Science and AI > University of Malta, > MSD06. Malta > Web: http://www.semantech.org > Email: charlie@semantech.org > > > ------------------------------------------------- > This mail sent through IMP: http://horde.org/imp/ > >
Received on Monday, 8 September 2003 19:48:43 UTC