user interface/user education

Colleagues - 

Please see the proposed language for User interface and user education. I've
attached a redlined version to help highlight the differences between this
version and the current editor's draft. I believe this is on the docket for
discussion on NEXT week's call on April 10. I look forward to the
discussion.



5. User Agent Compliance
A user agent MUST offer a control to express a tracking preference to third
parties. The control MUST communicate the user's preference in accordance
with the [TRACKING-DNT
<http://www.w3.org/2011/tracking-protection/drafts/tracking-compliance.html#
bib-TRACKING-DNT> ] recommendation and otherwise comply with that
recommendation. A user agent MUST NOT express a tracking preference for a
user unless the user has given express and informed consent to indicate a
tracking preference.
 
While we do not specify how tracking preference choices are offered to the
user or how the preference is enabled, each implementation MUST follow the
following user interface guidelines:
1.    The User Agent is responsible for determining the user experience by
which a tracking preference is enabled. For example, a user might select a
check-box in their user agent's configuration, or install an extension or
add-on that is specifically designed to add a tracking preference expression
so long as the checkbox, extension or add-on otherwise follows these user
interface guidelines;

2.    The User Agent MUST ensure that the tracking preference choices are
communicated to users clearly and conspicuously, and shown at the time and
place the tracking preference choice is made available to a user;

3.    The User Agent MUST ensure that the tracking preference choices
accurately describe DNT, including the parties to whom DNT applies, and MUST
make available via a link in explanatory text where DNT is enabled to
provide more detailed information about DNT functionality.

 
Non-Normative:
 
The User Agent plays a key role in enacting the DNT functionality. As a
result, it is appropriate for the User Agent to play an equally key role in
describing DNT functionality and educating users about DNT in order for this
standard to be meaningful.
 
While the user interface guidelines do not specify the exact presentation to
the user, they are intended to help ensure that users understand their
choices with respect to DNT. For example, outlining the parties (e.g., First
Parties, Service Providers, Third Parties) to whom DNT applies and using
language that a reasonable user is likely to understand is critical for
ensuring that users are in position to provide their informed consent to a
tracking preference.
 
Moreover, as DNT functionality is complex, it is important that User Agents
educate users about DNT, including but not limited to offering a clearly
described link that takes the user to additional information about DNT
functionality. For example, given that some parties may chose not to comply
with DNT, it would be helpful for browsers to educate users about how to
check the response header and/or tokens to see if a server is responding
with a ³public commitment² of compliance.
 
Finally, recognizing that DNT settings may be set by non-browser User Agents
acting in violation of the user interface guidelines, the browsers should
take reasonable steps to ensure that DNT settings are valid.