- From: Chiusano Joseph <chiusano_joseph@bah.com>
- Date: Thu, 16 Sep 2004 11:46:27 -0400
- To: Pranam Kolari <kolari1@cs.umbc.edu>
- CC: Monika Solanki <monika@dmu.ac.uk>, public-sws-ig@w3.org
One potential representation is in the form of the following stack (moving downward, you can read this as a level "has one more more" level below, which "has one ore more", etc.): - Choreography - Process - Service - Activity - Module But this is just one of multiple possibilities. Kind Regards, Joe Chiusano Booz Allen Hamilton Strategy and Technology Consultants to the World Pranam Kolari wrote: > > >> Specifically, the other services that WSDL declares: > >> receive ( one-way operation) > >> receive, reply ( two-way ) > >> pick, onMessage (one/two-way) > >> event, messageHandlers (one/two-way) > >> ..... > > > > > > So communication primitives can indeed be classified as services as > > per BPEL ? > > > >> > >> Note that "invoke" is not part of WSDL since it is used by the > >> composition to invoke external web services and is not > >> a provided service by the composition. Ofcourse one could argue that > >> certain "invokes: could be one-way operations > >> reporting to external entities. > >> > >> So in this sense, a subset of activities (combination of activities) > >> are services as they serve clients. > > > > > > I agree that a combination of activities can indeed represent a > > service, but would an individual activity like for example <receive> > > be classified as a service? > > I would say a <receive> alone is a service if it represents a one-way > operation in the BPEL composition. <receive> can also be accompanied > with a corresponding <reply> in which case both of them put together is > a service. A subset of activities ( and a combination of activities) are > services based on the way they serve clients. > > -- Pranam > _____________________________________________________________________ > > Pranam Kolari > Department of Computer Science > University of Maryland, Baltimore County > Baltimore, MD 21250 > > Contact: > (Work) +1 410 455 3971 :---: (Home) +1 410 536 4772 > kolari1@cs.umbc.edu :---: http://www.cs.umbc.edu/~kolari1 > _____________________________________________________________________ -- Kind Regards, Joseph Chiusano Associate Booz Allen Hamilton
Received on Thursday, 16 September 2004 15:47:16 UTC