[HOT] validating tiles

john whelan jwhelan0112 at gmail.com
Wed Mar 25 11:47:56 UTC 2015


But on the other hand we have some mappers whom I'm confident their tiles
will contain only very minor errors, and given the large number of projects
that could do with mapping I'm not sure that spending time validating these
is the best use of our very limited resources.  If we are going to spend
time validating then perhaps we should seriously think of only taking on
new projects when we have the capacity to finish them within say a year.

I have noticed that validating the tile in JOSM with the validate button
has identified a number of issues.

I've also noticed that validating quickly on a project seems to help the
project roll along the feedback both helps correct mappers, they do less
errors in future and keeps them motivated.

The other issue is I've seen some validations when tiles are rejected for
minor reasons such as the classification of a highway as a track rather
than unclassified or a path was missed that led from nowhere to nowhere.
These sort of validations tend not to inspire.

Cheerio John

On 25 March 2015 at 05:55, Pierre Béland <pierzenh at yahoo.fr> wrote:

> We have already made similar propositions a few times on the Github
> isssues service for the Tasking manager.  See the recent discussion.
> https://github.com/hotosm/osm-tasking-manager2/issues/545
>
>
>
> Pierre
>
>   ------------------------------
>  *De :* Denis Carriere <carriere.denis at gmail.com>
> *À :* Daniel Specht <danspecht at gmail.com>
> *Cc :* hot at openstreetmap.org
> *Envoyé le :* Mercredi 25 mars 2015 0h55
> *Objet :* Re: [HOT] validating tiles
>
> Very good points you brought up Dan.
> I feel very strongly about the #2 point about adding a statistic for
> validators, it does take effort to browse the tiles properly. I sometimes
> end up adding a few missing buildings or landuse areas if they are only a
> few minor missing features.
> Hopefully those points can be looked into & developed in the near future
> for the Tasking Manager.
> On Mar 24, 2015 9:53 PM, "Daniel Specht" <danspecht at gmail.com> wrote:
>
>
>
> Lots of projects are mapped quickly, but validated  slowly. This could be
> because
> (A) beginners don't feel qualified to pass judgement
> (B) people don't like to pass judgement
> (C)  doing original work is more fun than reviewing someone else's work.
>
> I have a couple suggestions for encouraging validation.
>
> 1.  Include instructions for validation on the instructions tab.
>    Because the instructions tab only has mapping instructions, readers may
> think that validation is for someone else to do.
>
> 2.  Include validation statistics on the stats tab.
>   Because the stats tab only has statistics for tiles completed, mappers
> may think that validating tiles is not essential. Also, these statistics
> give the mapper, but not the validator, a psychological reward. I've been
> validating a lot of tiles -- sometimes I seem to be doing most of the
> validations on a project -- and even though seeing the number by your name
> increment isn't the biggest thrill in the world, I have to admit that I
> miss it..
> --
> Dan
>
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