[HOT] OSM Data Quality Assurance Curriculum Draft

john whelan jwhelan0112 at gmail.com
Fri Jan 15 13:24:57 UTC 2016

I currently do a fair amount of validation, I don't think we have enough
validators and whilst iD knowledge is nice to have I don't see it as being

I accept that in some circumstances JOSM may not be practical and it is not
an ideal tool for everyone but let me sit a new mapper down at a machine
with JOSM set up with the building tool and give them a project about
mapping buildings and I'll get five times more buildings out of them than I
will in iD not only that but they'll be more accurately placed, squared and
correctly tagged.

For landuse=residential and highways again I don't see the area=yes, the
zebra pedestrian crossings, the untagged ways, the crossing ways and the
highways almost meet errors that I see all over the place from iD mappers.
I also see fewer this last quarter got missed.  If you get them to outline
the landuse=residential but don't tag immediately and just tag them at the
end I can get a lot more productivity out of them as well.

OSM can be edited with a variety of tools, iD is fashionable this week it
may not be next week.

I think there is a different set of skills needed for validation and for
teaching.  Validation and giving feedback for new mappers takes time,
typically I can map twice as much work as I'm validating in the same time.
The only off set is occasionally I get new mapper who is accurate and will
carry on to map a few hundred tiles and at a good level of data quality.

You need lots of patience for validation, two who have tried it have
expressed frustration at the way instructions and tutorials are ignored.

Cheerio John

On 13 January 2016 at 21:12, Yantisa Akhadi <yantisa.akhadi at hotosm.org>

> Hello all,
> I really appreciate all the replies on this matter. Probably it will be
> better if I add the context of why we work on this curriculum first. This
> curriculum is part of our strategy to improve OSM data quality, especially
> in Indonesia. In these past 4 years, we have trained more than 2,400 people
> all over Indonesia. Yet the training material largely focus on how to
> collect spatial data using OSM. There is little focus on quality assurance
> and validation, since it is hard to teach this material to people who just
> knew OSM. Another reason was if there is large scale disaster happened in
> Indonesia, we need pool of mappers as we also need pool of validators.
> It is true that some of these materials have been discussed in different
> platforms (learnosm, teachosm, and course.hotosm.org) and these platform
> have been a great contribution for us to work on the curriculum. At the
> same time we need to ensure that the training materials will be applicable
> in Indonesian context. Therefore we also develop Indonesian tagging
> standard as a reference.
> About the audience as specified in the docs, probably "Prerequisite" would
> be a better word. It is expected that validators would understand about iD
> so that they can guide new user on how to map faster and better in iD (eg.
> using shortcuts and how to add additional tags). The use of Overpass is
> recommended, but we think that it would help their work better. I believe
> that this curriculum is more act as a guide for validators rather than the
> rule that they should follow. The needs for validators also true in
> Indonesia, that is why we develop this curriculum and we are planning to
> use it in our upcoming training and hopefully would add more validators
> throughout the countries. Furthermore, we hope that this curriculum would
> not only applicable in Indonesia, but it can be useful for others as well.
> Again, much appreciated for your response.
> Thanks,
> *Yantisa Akhadi (Iyan)*
> *Humanitarian OpenStreetMap Team*
> Tel: +62 81 5787 03388  Email: yantisa.akhadi at hotosm.org
> hot.openstreetmap.org | openstreetmap.id
> On Fri, Jan 8, 2016 at 11:01 PM, john whelan <jwhelan0112 at gmail.com>
> wrote:
>> I'm unclear who the target audience is.  Why do they need to know iD?
>> Are you suggesting that only people who know everything such as overpass
>> turbo whatever it is should be permitted to validate?
>> We don't have enough validators in HOT at the moment how will this
>> improve things?
>> Thanks John
>> On 8 January 2016 at 10:37, Mikel Maron <mikel.maron at gmail.com> wrote:
>>> Yantisa, this is pretty interesting. How do you see this integrating
>>> with courses.hotosm.org and teachosm.org?
>>> Mikel
>>> On Friday, January 8, 2016, 5:04 AM, Yantisa Akhadi <
>>> yantisa.akhadi at hotosm.org> wrote:
>>> Hello all,
>>> As discussed couple of weeks ago, HOT Indonesia currently working on OSM
>>> Data Quality Assurance Curriculum and Training Material. We just finished
>>> the draft for the curriculum and we are looking for input from you. Here is
>>> the link to the document
>>> <https://docs.google.com/document/d/1MwXGir0quZgAtnParhBChjx3JehFcOUDwiK41kgDVA0/edit?usp=sharing>
>>> .
>>> Looking forward for your comments!
>>> Thanks,
>>> *Yantisa Akhadi (Iyan)*
>>> *Humanitarian OpenStreetMap Team*
>>> Tel: +62 81 5787 03388 <+62%2081%205787%2003388>  Email:
>>> yantisa.akhadi at hotosm.org
>>> hot.openstreetmap.org | openstreetmap.id
>>> _______________________________________________
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