Presence and IntComm WG

[Ben Teitelbaum <>]

Steve Blair 
<>
 writes:

>>Candace,
>>
>>This is a great list.  I might add:
>>
>>7. Off-line presence (i.e in the absence of any PUAs); for example, a
>>   PA might report when a user was last seen;
>>
> Really? This would seem to pull PIC back into the social context
> conversation. I would think the key is user settable presence. For
> example if a users wants such off-line presence they could enable it
> but it would be off by default. Am I missing the big picture on this
> one?

When I've heard Henning talk about this, the model is still very much
that the user sets the policy and composition rules and uploads them
to a PA via XCAP.  I'm not sure where the specification of policy
language stands in SIMPLE.  

Note that RPID has "since" and "until" attributes, so some of the
off-line presence that a PA might furnish could have been explicitly
published by a user's presentity.  For example, a local calendar app
on a user's laptop might publish "on plane until 18:20 UTC" just
before disconnecting.  Authorized watchers should be able to retrieve
this presence from the user's PA while he/she is off-line on the
plane.

-- ben

-- 
Ben Teitelbaum   http://people.internet2.edu/~ben/