[Odrl-version2] Re: The difference between offer and ticket
Alapan Arnab
aarnab at cs.uct.ac.za
Thu Mar 2 18:43:15 EST 2006
Hi,
I think this is a good example on why there is a need to have another
attribute to indicate the type of offer - which should remove the
ambiguities.
Alapan
On Thu, 2006-03-02 at 10:09 +0800, fengwenjie wrote:
> Hi Renato,
>
> That is to say, Offer only represent the holder's ability, while Ticket means
> the holder has issued the rights.
> Then I have still another question: why the two has different contraint on
> the number of Party with Assigner role? Actually, in one negotiation, shouldn't
> the Assigner of Offer and Ticket be the same?
>
> BR,
> Jessica
>
> ----- Original Message -----
>
> > > from above, the only textual difference is that: ticket allows at
> > > least one party with Assigner role, while offer only allows exactly
> > > one! Then, what's the original intention to have these 2 kinds of
> > > rights types? or to say, what's the semantic difference between them?
> >
> > Hi Jessica - the primary difference between Offer and Ticket is that
> > the Offer is only *proposing* as set of
> > permissions (and constraints etc), whereas a Ticket *allows* a set of
> > permissions (and constraints etc). The latter being for the actual
> > holder of the ticket.
> >
> > Is that clear? Perhaps we need to update the model...
> >
> > Cheers
> >
> > Renato Iannella
> > ODRL Initiative
> > http://odrl.net
> >
> >
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--
Alapan Arnab
Data Networks Architecture (DNA) Laboratory
Department of Computer Science
University of Cape Town
Rondebosch, 7700
South Africa
Tel: +27 21 650 3127
Web: http://people.cs.uct.ac.za/~aarnab/
Blog: http://idiots-mind.blogspot.com
----------
"You must always believe that you can be the best, but you must never
believe you have achieved it".
Juan Manuel Fangio
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