W3C home > Mailing lists > Public > public-p3p-spec@w3.org > July 2003

Re: [BH] The most generic binding

From: Joseph Reagle <reagle@w3.org>
Date: Wed, 16 Jul 2003 11:59:03 -0400
To: Lorrie Cranor <lorrie@research.att.com>, Rigo Wenning <rigo@w3.org>
Cc: public-p3p-spec <public-p3p-spec@w3.org>
Message-Id: <200307161159.03531.reagle@w3.org>

On Wednesday 16 July 2003 09:43, Lorrie Cranor wrote:
> a. When you want to bind a P3P policy to an XML document that is not
> identified by a URI.

I think this is addressed by the report, the XML instance would have to 
reference a policy though with something like:
    <my:Privacy my:rel='P3Pv1'
       my:href='http://registrar.example.com/w3c/p3p.xml'/>

> b. When you want to bind a P3P policy to a particular XML element
> within an XML document, but not to the entire document.

Can't the Policy simply enumerate that particular element via 
  <DATA ref="#user.home-info.city"/>

> c. When you want to bind a P3P policy to an XML document and don't have
> the ability to use the WKL or header methods for the PRF

What is WKL? Is this addressed the same way as (a) above?

> - A referencing mechanism that is nearly identical to the HTML and
> XHTML link tags in the P3P1.0 spec that could be used with any XML
> document (this is another way to satisfy point c above)

Yes, this is addressed in the report.

> - An extension to the PRF syntax to allow binding to a particular XML
> element at a URL rather than to the whole document at that URL (this is
> another way to satisfy point b above)

This is the bit I'm not understanding yet.
Received on Wednesday, 16 July 2003 11:59:05 EDT

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