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Re: linked

From: Lorrie Cranor <lorrie@cs.cmu.edu>
Date: Mon, 16 Feb 2004 14:05:15 -0500
Message-Id: <0DA8C49E-60B3-11D8-935B-000A95DA3F5A@cs.cmu.edu>
Cc: 'public-p3p-spec' <public-p3p-spec@w3.org>
To: Rigo Wenning <rigo@w3.org>

On Feb 16, 2004, at 12:12 PM, Rigo Wenning wrote:

> I concur with the remarks from Giles. Some additional rant:
> On Sun, Feb 15, 2004 at 05:51:41PM -0500, Lorrie Cranor wrote:
>> we discussed bugzilla 172
>> http://www.w3.org/Bugs/Public/show_bug.cgi?id=172 on last week's call
>> and I proposed a possible way of differentiating linked and linkable.
>> The following is my proposal for text for the spec to document this.
>> Please send your comments and let me know if this idea even makes any
>> sense.
>> <li>X is retrieved from a database.</li>
>> <li>Information collected about the user during the current session --
>> including data entered into forms, IP address, clickstream data,
>> client events, or other data associated with the user's visit to the
>> web site -- is added to a record in which X is stored.</li>
> We shouldn't restrict data collection to the current session. The more
> evil stuff remembers previous sessions and continues recording. Perhaps
> we need to separate the discussion of what has to be declared (and a 
> way
> to declare that things are _added_ to a profile) from the question of
> what linkable means.

What if I reformulated the second bullet of the linked definition as 
follows... note that
I used the term "identifiable" here rather than "identified"... I
think that best reflects what we mean in this case.

<p>A piece of data X is said to be <i>linked</i> to a cookie Y if at
least one of the following activities may take place as a result of
cookie Y being replayed:</p>


<li>X is retrieved from a database.</li>

<li>Information identifiable with the user -- including but not
limited to data entered into forms, IP address, clickstream data, and
client events -- is added to a record in which X is stored.</li>


If either of these activities happen immediately upon cookie replay or
at some future time (perhaps as a result of retrospective analysis of
server logs), then the piece of data X is considered linked to cookie Y.
Received on Monday, 16 February 2004 14:04:52 UTC

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