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<div class="moz-cite-prefix">On 14/01/2015 11:00 PM,
<a class="moz-txt-link-abbreviated" href="mailto:tagging-request@openstreetmap.org">tagging-request@openstreetmap.org</a> wrote:<br>
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cite="mid:mailman.27.1421236808.318.tagging@openstreetmap.org"
type="cite">
<pre wrap="">Date: Wed, 14 Jan 2015 07:59:49 +0100
From: Frederik Ramm <a moz-do-not-send="true" class="moz-txt-link-rfc2396E" href="mailto:frederik@remote.org"><frederik@remote.org></a>
To: <a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="mailto:tagging@openstreetmap.org">tagging@openstreetmap.org</a>
Subject: Re: [Tagging] Basic philosophy of OSM tagging
Message-ID: <a moz-do-not-send="true" class="moz-txt-link-rfc2396E" href="mailto:54B613E5.8020003@remote.org"><54B613E5.8020003@remote.org></a>
Content-Type: text/plain; charset=UTF-8
Hi,
On 01/14/2015 01:28 AM, Warin wrote:
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<pre wrap=""><span class="moz-txt-citetags">> </span>What is the basic philosophy of OSM tagging at the top level?
</pre>
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<pre wrap="">There is no basic philosophy at the top level from which everything else
can be derived. It's like evolution - some things are a bit strange but
you can often understand them by looking at how they came to be.
There is a tendency however to tag for
</pre>
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<pre wrap=""><span class="moz-txt-citetags">> </span>What things are? eg highways
</pre>
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<pre wrap="">simply because something can always have side effects that are not
related to the primary purpose, or the primary purpose is not
immediately obvious.
For example, a motorway is not only a transport feature, it is also an
insurmountable barrier for pedestrians or cyclists.
Tagging is very often based on what you see, not what you know. If you
see a body of water (and you might be doing that from aerial imagery,
sitting 1000s of miles away), you tag it as a body of water even if you
don't know whether this is an artificial reservoir that supplies
drinking water or a crater lake or anything else. Tagging
</pre>
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<pre wrap=""><span class="moz-txt-citetags">> </span>What things are used for? eg amenity
</pre>
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<pre wrap="">might require more knowledge than the mapper has, especially in the case
of mapping from aerial imagery.
Bye
Frederik</pre>
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<big><br>
I like this. I'm not after changing what has happened in the past
but adopting an approach that will help future new tags. It may
also influence future 'tiding' efforts, like those for power
infrastructure? Don't know but I'd like some guidance as to the
suggestion by some on the tap tag that it should be somewhere else
..where? And what are the 'rules'? <br>
From my 'diary' entry .. amenity and man_made are not liked ...
and I can see the thinking from your post Frederik. Thanks. I'll
put a bit of it up on my Diary .. might get more comments. The
rest of you can think about it .. I know it is an essential
question with a basic answer that will help guide in the future. </big><br>
<br>
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