Re: [xacml] condition reference text (item 7)

["Simon Godik" <simon.godik@overxeer.com>]

Title: Message

Hi Tim,

There were some difficulties with expression reference and condition in our original schema. In particular, expression references to condition could not be reused for expression references within condition. This was one of the reasons condition is not present.

I agree with your point that condition is useful concept. We can define condition element of type expression and require that

it evaluates to boolean. Scope of change would be less as well.

 

Simon

----- Original Message -----

From: Tim Moses

To: Tim Moses ; 'Simon Godik' ; 'xacml@lists.oasis-open.org'

Sent: Friday, March 12, 2004 6:48 AM

Subject: RE: [xacml] condition reference text (item 7)

Colleagues - I have just realized how much work this is going to be.  In addition to the specific changes described by Simon, all the examples are affected and the introductory material, including the class diagram are affected.  This is going to take some time.

 

I would like to see formal acceptance of the proposal as soon as possible, because backtracking doesn't look like an appealing option.

 

Personally, I lament the passing of <Condition>.  The part of <Rule> that complements <Target> is a significant independent concept that deserves its own name.  Anyone who has to explain XACML will have to refer to it.  With the passing of <Condition>, they'll have to talk about "the child <Expression> element of the <Rule> element" or some such.  Global replace may work for the editor, but it is not a very attractive prospect for the reader.

 

Does anyone else feel that this idea needs a name of its own?

 

All the best.  Tim.

-----Original Message-----
From: Tim Moses [mailto:tim.moses@entrust.com]
Sent: Thursday, March 11, 2004 9:16 AM
To: 'Simon Godik'; 'xacml@lists.oasis-open.org'
Subject: RE: [xacml] condition reference text (item 7)

Simon - Thanks.  I'll incorporate into, and issue, a Draft 07, on the assumption that, if and when there is a vote on this subject, the vote will be to accept.  If not, we can always backtrack.  All the best.  Tim.

-----Original Message-----
From: Simon Godik [mailto:simon.godik@overxeer.com]
Sent: Wednesday, March 10, 2004 11:10 PM
To: xacml@lists.oasis-open.org
Subject: [xacml] condition reference text (item 7)

Hi Tim,

Here is condition reference text and schema. Text is adopted (with some additions) from Polar's email

 

Simon