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OWL-S questions, invoking composite processes and composing web services?

From: Martin Gülich <martin.gulich@foi.se>
Date: Wed, 7 Jul 2004 14:31:37 +0200
To: <public-sws-ig@w3.org>
Message-ID: <000401c4641e$58f4c810$293ee396@win.foi.se>

I have a few questions about OWL-S. Perhaps some of you can help me.

First, imagine you want to invoke a web service that consists of a composite
process. Is the user´s client application responsible for locating and
invoking each atomic process, i.e. the client acts as a kind of manager for
executing the service according to its OWL-S description? Or is there a
"wrapper" implementation of the service that executes the described sequence
of atomic processes on behalf of the client? Can the client find the
grounding of the atomic processes if the service´s process model is a "black

Second, for dynamically composing a web service "ad hoc" you need a kind of
agent planning system in a layer above OWL-S that composes a sequence of
existing web services into a new service and executes it, right? I.e. OWL-S
does not describe how to compose dynamically, just statically?

Finally, does anyone know where I can find good references to the latest
research in the areas of capability based matching and dynamic composition
of semantic web services?

Thank you!

Best regards

Martin Gülich
Research Engineer

Swedish Defence Research Agency
Dept. Of Systems Modelling
SE-172 90 Stockholm, Sweden

Phone: +46 8 55503691
Company web site: www.foi.se
Received on Wednesday, 7 July 2004 08:59:02 UTC

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