[OSM-dev] Fw: [Geowanking] [Fwd: [Ann] LinkedGeoData.org]

Tels nospam-abuse at bloodgate.com
Sat Jul 18 16:47:44 BST 2009


On Friday 17 July 2009 02:26:11 andrzej zaborowski wrote:
> 2009/7/15 Mikel Maron <mikel_maron at yahoo.com>:
> > From discussion about linkedgeodata.org/ on geowanking...
> >
> > From: Sean Gillies <sean.gillies at gmail.com>
> > To: geowanking at geowanking.org
> >
> >> I'm skeptical about RDF too, but the linked geodata folks are
> >> adding some extra value (at least for a particular group of
> >> users): hypertext, so that you or your software can follow your
> >> nose through
> >> linked nodes and ways without having to know an API specific to
> >> OSM, and persistent URIs. I'm not knocking OSM's API, but
> >>
> >> http://api.openstreetmap.org/api/0.6/node/264695865
> >>
> >> isn't meant to be a "cool URI" for the Cafe B'liebig, is it?
> >> Requests for the version 0.5 URIs like
> >> http://api.openstreetmap.org/api/0.5/node/1 return a 403, which
> >> suggests to me that I shouldn't get too
> >> attached to the 0.6 ones. Of course, URIs like
> >>
> >> http://linkedgeodata.org/triplify/node/264695865
> >>
> >> have their own issue. Stamping the name of the semantic web
> >> framework you happen to be using today on the URIs you want to
> >> make future-proof isn't a cool thing to do.
> >
> > Sean has a very good point here about the permanence of URIs.
> > Permalinks to OSM objects permits integration of these identifiers
> > into other systems. At the moment, we don't have permalinks,
> > because the API version is included in the URL. Perhaps the API
> > could also support read-only, permalinks for objects, like
> > http://api.openstreetmap.org/api/node/264695865
>
> I don't believe linking to a XML snippet defining an object in osm is
> extremely useful, but I can see other uses for objects in OSM being
> universally "addressable" in the URL space (e.g. comparing whether
> two objects are the same).  In that case the word "api" probably
> shouldn't appear in the URL either and also there's no point in it
> being a http URL, so why not define something like
> osm://openstreetmap.org/node/XXX as being the URL of a node in OSM. 
> This could then be easily translated by client into a http URL for
> the xml snippet or the history web page for the object.

It would still pose the problem that nobody/nothing prevents the node 
moved 100km south-west, all tags renamed/removed/rewritten, and a new 
node created at the old place with the same tags instead...

All the best,

Tels

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 And Count Doofus would laugh as he yanked on it and watched Luke fall
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