-- Andy Mabbett wrote: -- I gave the requested talk yesterday.
During preparatory discussions, it turned out that, while hosted by IBM, the audience was a W3C working group, "Data on the web best practice". As such, the interest was no so much trees or gas pipes, but the use of URIs (particularly linked data URIs) in OSM. Using trees and other examples, I described, and we then discussed, how we tag entities in OSM, using UIDs but not necessarily URLs, and issues facing data users who need to resolve those UIDs back to URLs; for example: openplaques_plaque = 1536 to: http://openplaques.org/plaques/1536 To that end, I've just modified [[Template:KeyDescription]] by adding two parameters: https://wiki.openstreetmap.org/w/index.php?title=Talk:Tag:historic%3Dmemorial&diff=prev&oldid=1010411 for "website" and "url_pattern"; see: https://wiki.openstreetmap.org/wiki/Key:openplaques_plaque of an example of how they're intended to be used (the label display needs tweaking). Other issues which are unhelpful to data re-users include keys with missing documentation; redundant keys ("Key:openplaques_plaque" vs "Key:openplaques_id"); ambiguous keys ("ref=1234" - ref in whose database?) and the perennial problem of the lack of stable URIs for entities in OSM. I have yet to solve that one... -- End Quote -- Hi Andy, I gather that you will be proving some more feedback to the local OSM group (mappa mercia) this Thursday. I look forward to hearing more. In regards to your change to the wiki template - I think this is a great first step and will look at adding this to some more tags. For example, the Listed Buildings in England (the tag EH_ref seems to be used). Regards, Rob
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