RE: Compositions Types:Static and Dynamic

 
Thank you very much! 
I will take a look in this paper! 
Daniela

> -----Message d'origine-----
> De : Abraham Bernstein [mailto:bernstein@ifi.unizh.ch] 
> Envoyé : vendredi 14 avril 2006 21:43
> À : Bijan Parsia
> Cc : Daniela CLARO; SWS-IG '
> Objet : Re: Compositions Types:Static and Dynamic
> 
> 
> 
> Bijan Parsia wrote:
> > (Keeping the discussion on list)
> >
> > On Apr 14, 2006, at 5:23 AM, Daniela CLARO wrote:
> <cutting out a lot>
> >
> > BPEL also has a distinction between...er...abstract? and concrete 
> > workflows? They point is that if there are *in fact* concrete, in 
> > principle executed services in the composition, that's 
> something worth 
> > marking (i.e., in principle, assuming no failure, you can 
> execute the 
> > composition without further planning/composition). I don't 
> see that as 
> > "static" per se. The composition is immediately executable. 
> When the 
> > composition doesn't concretize things entirely, there's 
> further work 
> > to be done (from a composition, or dispatch/selection, perspective).
> > If I have conditionals in the composition, then in at least that 
> > respect, though the composition itself might never change, what 
> > services actually get invocated will depend on (simple) runtime 
> > decisions.
> >
> > So there really is a continuum here. It might help if we knew the 
> > purpose you have in trying to make this distinction.
> Daniela
> 
> You may want to look at some work that I did on the 
> specificty frontier (or continuum - thanks Bijan) back in 
> 2000 (see 
> http://www.ifi.unizh.ch/ddis/staff/goehring/btw/files/CSCW2000
> -final.pdf). 
> There I discuss various degrees of specificity that a process (or
> service) description can have. The paper also discusses that 
> different degrees of specificity warrant different types of 
> support (by the system). While the paper focuses on machine 
> support for human process enactment the ideas can easily be 
> translated to the support of service executions.
> 
> Best
> 
> Avi
> 
> >
> > Cheers,
> > Bijan.
> >
> 
> --
> -----------------------------------------------------------------
> |  Professor Abraham Bernstein, PhD
> |  University of Zürich, Department of Informatics
> |  phone: +41 1 635 4579
> |  eMail: bernstein@ifi.unizh.ch
> |  web: www.ifi.unizh.ch/~bernstein
> |  mail: Binzmühlestrasse 14, CH-8050 Zürich, Switzerland
> 
>

Received on Tuesday, 18 April 2006 08:48:02 UTC