<div dir="ltr"><div><div><div>I think our own wikibase could be used to give a more structured semantic meaning of tags, and combinations of tags.<br><br>For example, we want to define what a McDonalds restaurant is in our database. Is it a node with name=McDonalds? Well, a parking lot could be named the same. Is it a way with amenity=fastfood + name=McDonalds? Well, in China they are called differently. Is it a relation, node or way with franchise:wikidata=Q38076? What combination of tags is enough to be sure that something is a McDonalds restaurant? We have to define that somewhere.<br>
<br></div>Well, this wikibase would be a database of all these combinations that can be considered to have a specific meaning. Then those items could be connected with Wikidata or other databases. Also, dataminers would have a reliable place with defined queries for their needs.<br>
<br></div>But this is a bit offtopic.<br><br></div>Janko<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">2014-04-03 1:37 GMT+02:00 Jo <span dir="ltr"><<a href="mailto:winfixit@gmail.com" target="_blank">winfixit@gmail.com</a>></span>:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div>I'm afraid I don't fully understand the reasoning behind OSM having its own wikidata DB. What extra (different) data would we store in it, which couldn't go in Wikidata? I understand it in the case of Commons to store metadata like diaphragma and lenses used when taking those pictures.<br>
</div>Oh, maybe we can store source and other metadata in it?.. But we're already storing our data in a DB, aren't we?<br><br></div>Polyglot<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">2014-04-02 23:34 GMT+02:00 Janko Mihelić <span dir="ltr"><<a href="mailto:janjko@gmail.com" target="_blank">janjko@gmail.com</a>></span>:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5"><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">2014-04-02 16:56 GMT+02:00 Andy Mabbett <span dir="ltr"><<a href="mailto:andy@pigsonthewing.org.uk" target="_blank">andy@pigsonthewing.org.uk</a>></span>:<div>
<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div>
<br>
</div>There is also the case of sets; for example, four carvings which form<br>
a single artwork, but which are mapped as separate entities.<br></blockquote></div></div><br></div><div class="gmail_extra">You could put the four carvings into a relation, and put the wikidata tag there (along with the name=* and tourism=artwork). Or you could create four wikidata items, and give them the attribute "part of" and connect with the first item. Then reference those four items in OSM.<br>
<br><br><div class="gmail_quote">2014-04-02 19:13 GMT+02:00 Andy Mabbett <span dir="ltr"><<a href="mailto:andy@pigsonthewing.org.uk" target="_blank">andy@pigsonthewing.org.uk</a>></span>:<div><br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div><br>
</div>One might also reasonably expect to find multiple instances of things<br>
like material:wikidata=Q23757 (that's limestone).<br></blockquote><div> </div></div></div>I wasn't talking about xxx:wikidata=* tags. There can be lots of those. All sculptures by one artist should have the same artist:wikidata=* tag. All streets named after Nikola Tesla should have<font><span style="font-weight:normal"><span> name:etymology:wikidata=Q9036. But there should be only one element with wikidata=Q384, or any other number.<br>
<br></span></span></font></div><div class="gmail_extra"><font><span style="font-weight:normal"><span>P.S. I'm not sure we should reference materials from Wikidata. That's going a bit too far. Tagging material=limestone should be enough. If we want to go that far with connecting OSM tags with Wikidata, there are better ways. </span></span></font><font><span style="font-weight:normal"><span><font><span style="font-weight:normal"><span>I have thought about this, and with common tags like material=* we could make our own Wikibase installation, and connect tag combinations from OSM with Wikidata items.<br>
<br></span></span></font></span></span></font></div><div class="gmail_extra"><font><span style="font-weight:normal"><span><font><span style="font-weight:normal"><span>Janko</span></span></font><br>
</span></span></font></div></div>
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