I would think that similar map changes (for example, only buildings) in a 
contiguous geographical region would be an «optimal» mapping style for easy 
reviewing. It could be a “tip” in the iD tutorial.


From: Michał Brzozowski [mailto:www.ha...@gmail.com]
Sent: onsdag 17. januar 2018 16.14
To: Imre Samu <pella.s...@gmail.com>; talk@openstreetmap.org
Subject: Re: [OSM-talk] How to teach novices about optimal changeset size?

Certainly I am not intending to change the community and require every mapper 
to comply. If you're an experienced mapper, you're fine.

I mean new users, who are not yet integrated with the community. Their work 
should be checked thoroughly (in Achavi, osmcha...). All novices make mistakes, 
after all. Better to give them good habits. By extension, smaller number of 
changeset will lead to less recycling of same changeset comments.

I made this thread because I found it difficult to convey what is best practice 
in short form in changeset comments.

Maybe I should simplify things when explaining to them? No need to tell all the 
conventions, just what is a good start - but hoping it won't backfire ;)

17.01.2018 3:35 PM "Imre Samu" 
<pella.s...@gmail.com<mailto:pella.s...@gmail.com>> napisał(a):
>  one changeset per building, repeated 20 times
my typical use case:   House numbering on the street:  push the numbers & 
forget & go to the next house    ( fast feedback loop vs. Delayed gratification 
 )
- sometimes the mobil app is crashing, and I don't want to go back 100m to 
re-enter - the last 5-10 numbers

> Obviously this makes them PITA to review quickly in Achavi or whatever tool 
> you use.

imho: it is easier to group the changeset on the reviewer side :  by user + by 
hour   ( group by user, hour )   than change the community.

Imre




2018-01-17 15:13 GMT+01:00 Michał Brzozowski 
<www.ha...@gmail.com<mailto:www.ha...@gmail.com>>:
Certainly not:
- one changeset per building, repeated 20 times
- one changeset for 3 POIs that are 1000 km apart in different countries

These are real world examples. In the latter Achavi can often refuse to run.

That's also why I asked ;-) It's not that easy to formulate the answer what is 
reasonable to include in a changeset.

Michał

17.01.2018 2:54 PM "Tobias Zwick" 
<o...@westnordost.de<mailto:o...@westnordost.de>> napisał(a):
So, what is the optimal changeset size, and why?

Tobias

On 17/01/2018 14:26, Michał Brzozowski wrote:
> Many new users have a habit of e.g. sending one or few objects per
> changeset, resulting in a dozen or even more changesets per day.
> Obviously this makes them PITA to review quickly in Achavi or whatever
> tool you use.
>
> This habit is probably caused by non-knowledge of how auto-save works in
> iD (which makes the work reasonably secure), as well as just not knowing
> better thus forming their own judgement.
>
> How should we teach about optimal changeset size? This is quite tricky -
> how we would define it?
>
> Can the iD nudge users towards better practice? (Linking to Good
> changeset comments wiki page would be useful as well)
>
> Michał
>
>
> _______________________________________________
> talk mailing list
> talk@openstreetmap.org<mailto:talk@openstreetmap.org>
> https://lists.openstreetmap.org/listinfo/talk
>


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