about Tuesday lunch? If I don't hear any objections by, say, early
this afternoon, I'll go ahead and make the change.
--Richard
On Mar 17, 2010, at 4:05 PM, Richard Barnes wrote:
> Hey all,
>
> This email is announcing a Bar BoF at the upcoming IETF meeting on
> the topic of "location coherence", to be held somewhere in the
> vicinity of the GEOPRIV meeting, probably during the lunch break on
> Wednesday, 24 March. Since the topic is a little peripheral to
> GEOPRIV, I've also set up a Google Group for discussions here:
> <http://groups.google.com/group/geo-loco>
>
> What I mean by "coherence" is this:
>
> In order for location-based Internet applications to work, there are
> several pieces that need to work together, including
> -- Positioning sevices
> -- Location protocols
> -- Location APIs-- Application protocols that use location
> Right now, there are many different implementations out there for
> each layer in this stack, each with its own set of semantics for
> location related concepts -- not just the location that can be
> expressed (e.g., lat/long/accuracy vs. polygons), but also ancillary
> ideas like types of location (civic vs geodetic) and supporting
> information like signal measurements.
>
> In the spirit of allowing different organizations to add value at
> different levels of this stack, while still maintaining
> interoperability, it would seem like a good idea to have a coherent
> set of semantics for location concepts -- a common data model, if
> not common protocols and APIs.
>
> Topics for discussion could include:
> -- How can we map out the space of things that exist today?
> -- What sorts of location systems would this effort try to
> encompass? Protocols and/or APIs? Positioning and/or conveyance?
> -- What's the proper venue for this work? GEOPRIV? A new IETF WG?
> Somewhere else?
>
> As an example of the sort of thing that might come out of this work,
> a colleague and I put together a partial draft looking at mappings
> between different location protocols:
> <http://tools.ietf.org/html/draft-doran-geopriv-proto-map-01>
>
> Thanks for taking the time to read through this, and I look forward
> to some useful discussions next week.
>
> Best,
> --Richard
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