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Hi Pete,<br>
<br>
I've been contacted by one of the mappers I've been training,
concerned because he had one of his squares invalidated. He's been
working away at the Lubumbashi tasks involving the tracing of
buildings. [1]<br>
<br>
From conversations I've had with you, and others involved in the
mapping of the areas, I've been teaching (& validating), on the
basis that a building without a roof can easily become a building
with a roof. I seem to remember from previous conversations that the
arguments go something like;<br>
<br>
<ul>
<li>1/. It only takes a short time to put a thatched or corrugated
iron roof on the walls. The roof may be on the building before
the tracing is complete.</li>
<li>2/. Even though there is no roof on the top floor, there may
be lower floors in occupation, and the building may even still
be occupied without a roof,</li>
<li>3/. When the ground survey is being carried out, the surveyor
can get OSM updated with the correct status - but it helps them
if the building shows up on OSM & on the printouts.</li>
</ul>
<br>
I've had a read through the instructions for the projects, and
through the wiki page for buildings [2] for clarification.<br>
<br>
Could you have a quick review and perhaps update the instructions
for the projects if you feel that is needed, or just reply to this
email. I'm happy to contact the validator concerned once I've
clarified that the instructions have not altered. <br>
<br>
[1] <a href="http://tasks.hotosm.org/project/1253">http://tasks.hotosm.org/project/1253</a>
<a href="http://tasks.hotosm.org/project/1254">http://tasks.hotosm.org/project/1254</a>
<a href="http://tasks.hotosm.org/project/1228">http://tasks.hotosm.org/project/1228</a>
<br>
[2] <a href="http://wiki.openstreetmap.org/wiki/Key:building">http://wiki.openstreetmap.org/wiki/Key:building</a><br>
<br>
Regards<br>
<br>
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