[HOT] JOSM people validating / mapping in Nepal, please run JOSM's validator before finishing a tile

[Dave Corley]

Hi all,

Just to clarify, josm & id both now validate but it's possible newbies
don't know how to handle the returned errors and just ignore them.

The untagged link in my original email was given as a sample only. There
are also many, many issues with routing, boundaries, waterways, etc etc
etc.

Granted there may be some false positives, but those would be the
exception.

Dave
On 7 May 2015 12:27, "Florian Lohoff" <f at zz.de> wrote:

> On Thu, May 07, 2015 at 12:57:06AM -0700, Springfield Harrison wrote:
> > Hello Dave,
> >
> >         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?
>
> In OSM there is no such thing as an invalid tag. Everybody is allowed to
> invent new tags although your expectation should not be that there is a
> single data consumer who will make use of it.
>
> The common set of tags has been selected by a "do-ocracy" - You see
> data consumers making use of a certain tag and you start tagging to
> influence these data consumers.
>
> >         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.
>
> Both ways are perfectly valid - validating on input or on data
> consumption.
>
> OSM has gone the way of validating or using data on the consumer side
> which i am very happy about. I have invented a tag myself for hinting a
> routing instance for infrastructure e.g. Telecoms cables. If there would
> have been an input validation i could not have done so.
>
> Flo
> --
> Florian Lohoff                                                 f at zz.de
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