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Subject: Re: access control information (formerly... Strawman)


first, you both get my vote for the academian egghead idea of the week
award! :o) 

i think simon is correct; even were the group able to reach such
agreement, i fear the learning curve associated with implementing such a
solution would be significant. i don't know about anyone else, but i
will be the first to claim practical ignorance with Horn Clauses (and i
consider myself in the upper quartile of the ignoramus population).

that is not to say that the idea is not good, but i wonder if there may
be a way to make it more approachable?

b

"Simon Y. Blackwell" wrote:
> 
> !!! I had almost introduced the concept of Horn Clauses a few days ago, but
> I figured it might be too obscure. I do think it is something we should
> explore when defining the policy language. However, coming to agreement on
> the standard set of primitive predicates will be a substantial rub!
> 
> > -----Original Message-----
> > From: Polar Humenn [mailto:polar@syr.edu]
> > Sent: Tuesday, June 12, 2001 5:37 AM
> > To: bill parducci
> > Cc: 'xacml@lists.oasis-open.org'
> > Subject: Re: access control information (formerly... Strawman)
> >
> >
> >
> > You could go for a strictly logical approach, i.e. Prolog like Horn
> > Clauses. Then you have a semantics. You just have to standardize the
> > primative predicates.
> >
> > -Polar


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