<div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">There are a number of issues and trade offs. First JOSM actually does do validation but many new mappers use id which apparently does not. If you look at the numbers about half of the mappers are new mappers to OSM on this project so we get a great deal of mapping from them. Some know very little about computers, some have PhDs in computerized mapping.<br><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">Within OSM there are guidelines but nothing stronger on tags. There is a feature page which has recommended tags but that is all they are. HOT attempts to use more standardized tags.<br><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">Currently we put no restriction on what mappers can map. It might be sensible to ask new mappers at maperthons to restrict themselves to a subset such as buildings using JOSM building tool.<br><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">I think there is thought being spent at the moment on how to improve matters, better training videos, what is the best way to make use of the resources available etc.<br><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">It is worth mentioning that the HOT maps are still the best available in many circumstances.<br><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">Cheerio John<br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On 7 May 2015 at 03:57, Springfield Harrison <span dir="ltr"><<a href="mailto:stellargps@gmail.com" target="_blank">stellargps@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>
<font face="Arial, Helvetica">Hello Dave,<br><br>
<u></u> <u></u>This is
amazing to see the vast number of invalid tags. This really calls
into question the integrity of the database. Do you have much luck
getting people to run the validator?<br><br>
<u></u> <u></u>I am
baffled that the data validation does not take place right at the data
entry stage. This is very common in database applications.
All the critical fields have validation rules so that the operator can
neither skip the critical fields nor enter data that is not applicable to
that field. If JOSM, complex as it is, is lacking input data
validation, that is a serious failing, in my opinion. For this type
of mission, complete and accurate data is critical. You do not have
the luxury of time hoping that people will bother with a post entry
validation process.<br><br>
<u></u> <u></u>I see a
discussion about how to label seasonal/intermittent streams but there is
obviously no standardized tag for this. How can this be? Who
will know that two separate queries will need to be run to discover all
intermittent or seasonal streams? Data integrity is fundamental to
any GIS/database project, but especially for one supporting a real-time
emergency.<br><br>
<u></u> <u></u><u></u>
<u></u>Thanks, Cheers .
. . . . . . . Spring<br><br>
<br><br>
<br><br>
</font>At 06-05-2015 14:06 Wednesday, Dave Corley wrote:<br>
<blockquote type="cite">This is especially applicable
for the second pass tasks that are going on right now but should be
considered for anyone doing any Nepal tasks using JOSM. <br><br>
When you are mapping / validating a tile, please run the validator before
you mark the tile as complete. I can promise you, you will find things to
fix that will improve the data. <br><span class=""><br>
Here's a OSMI link showing tagging issues only in the Nepal
region<br><br>
<a href="http://url.ie/yzu8" target="_blank">http://url.ie/yzu8</a><br><br>
There are a lot!<br><br></span>
There will be many other issues (unconnected ways, unclosed ways etc etc)
that are quite quick and easy to fix so please take the extra few mins at
the end of a tile to improve pre-existing data. <br><br>
Thanks, <br>
Dave <br><span class="">
aka DaCor<br>
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