sorry if this is a repost, not sure whether it made it on the list the first 
time 

-----Ursprüngliche Nachricht-----
Von: Denny Vrandecic [mailto:[email protected]] 
Gesendet: Mittwoch, 24. Dezember 2008 10:07
An: [email protected]; [email protected]
Betreff: [OSM-talk] OSM-WIKI: reducing redundancy, less redundant and 
standardized data exchange

(Karl, since the list is probably closed for outside postings, can you please 
forward this answer to the list?)

I stumbled on this thread via Google Alert, so excuse me for not being much 
knowledgeable about the OpenStreetMaps wiki (I'm a big fan of OSM,
though!) -- but I know a little bit about Semantic MediaWiki.

So one of the major ideas is indeed to be able to declare a piece of 
information on one page, and then reuse the data in other places, especially 
summary sites.

Example: on the "Statue of Liberty" page you would say "Tourist 
attraction=major" and "located in=New York, NY" and on then, in other places, 
you could create queries to summarize such data from the wiki, i.e.

List of all major tourist attractions:
{{#ask:[[Torist attraction::Major]]}}
or
List of all tourist attractions in New York, NY:
{{#ask:[[Tourist attraction::+]] [[located in::New York, NY]]}} etc.

If you want, keep me in the loop for this thread, and I will answer question. 
I'd be very happy to see the OSM wiki use SMW, if it makes sense.

Cheers,
denny




Original message:
Hi there,

In [2] we see that there are partially redundante declarations of map features 
(descriptions of keys or key/value-pairs for tagging OSM
primitives) in the wiki. The major reason for redundant is, that they appear 
both on individual pages (like [[Key:heighway]] or [[Tag:highway=primary]]) and 
on summary pages (like [[Map Features]]). So far we didn't come up with an 
approach to *declare* a map feature only once on the Wiki (i.e. by 
instantiating a suitable template) and to *use* this declaration both in 
indvidual pages and in summary pages.

I don't see yet how Semantic MediaWiki could help use here because the limited 
templating approach seems to remain unchanged. An example on how Semantic 
MediaWiki could help to declare, say, the data for the key/value-pari 
highway=primary would be very appreciated. Perhaps on the talk page of [2]?

-- Karl


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