[HOT] Validating - Take a Task at Random

Ralf Stephan gtrwst9 at gmail.com
Wed Nov 12 07:55:03 UTC 2014

IMHO, the task manager shouldn't automatically assign validation tasks. The
potential problems outweigh any benefits from that feature.


On Tue, 11 Nov 2014 19:33 Nick Allen <nick.allen.54 at gmail.com> wrote:

>  Hi,
> For info of all who are consciously validating squares (& a few who may
> not realise they have been validating).
> I've been contacted concerning one of the very successful recent
> mapathons. A little research after the event has shown that several squares
> of at least one project have been marked as validated by mappers extremely
> new to the system - unfortunately the squares are not up to standard and
> more work is taking place to correct this.
> We think that the likely scenario is - When all squares of a project are
> either complete or locked by another mapper, Tasking Manager will allocate
> you a square to validate - if you are extremely new to the system you
> probably will not realise what has happened and will look round the square
> & then add a brief comment before marking the square as done. Having spoken
> at several mapathons, and listened to other mappers giving guidance I know
> that;
> a/. you can't say everything before letting someone start, &
> b/. even if you did they probably wouldn't remember it all anyway.
> I've added to the entry on the tasking manager in learnOSM - link is
> http://learnosm.org/en/coordination/tasking-manager/#contribute-tab & I
> ask that validators just bear this in mind - have a quick look at the
> usernames of others who have validated within the project you are working
> on, and be prepared to reopen squares that may have already been validated
> if there are problems. I'm not talking about 'they missed one building in
> the middle of 200', I'm talking about buildings should have been traced,
> there were hundreds, but none were traced!
> I can see how easy a mistake it is to make, and I think it's something we
> should be aware of and try to negate in the future. Meanwhile I suggest
> that if you find one, send a message to the mapper concerned including the
> above link.
> To my knowledge there has never been a decision about what qualifications
> are required before someone validates, and I'm not sure there is an answer
> to that - a few of my thoughts;
> 1. I've checked up on one validator who had (at the time I checked) never
> completed a square - extremely good mapper with lots of experience in other
> areas of mapping, and gives good feedback - if it's you, keep up the good
> work, thanks.
> 2. I found someone mapping on the day their OSM username was issued. Their
> mapping was obviously well beyond the standard we expect of a new mapper.
> On sending a message I established they wanted a new username to use whilst
> mapping for HOT - I asked them to start validating. Again, keep up the good
> work, thanks.
> 3. I'm still learning.
> Perhaps this is something for discussion at one of the working groups.
> --
> Nick
> Volunteer 'Tallguy' for
> https://wiki.openstreetmap.org/wiki/Humanitarian_OSM_Team
> http://www.openstreetmap.org/user/Tallguy
> Treasurer, website & Bonus Ball admin for
> http://www.6thswanleyscouts.org.uk/ (treasurer at 6thswanleyscouts.org.uk)
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