[OSM-talk] We need to have a conversation about attribution

Simon Poole simon at poole.ch
Tue Mar 5 12:58:47 UTC 2019

Hi Benoît

My expectation was and is that we are not going to fundamentally change
the requirements, but simply be more prescriptive for more use cases.
just as you outline.

The only case where I currently think it might be necessary to find
something "new" are static (aka non-panable and zoomable) small map
snippets where on the one hand there are limitations to copyright and
other rights that might apply and on the other hand some practical


Am 05.03.2019 um 09:37 schrieb althio:
> Richard, Simon, all,
> I am very happy with the current requirements and I think they don't
> need to be updated.
> Maybe the Attribution guidance as in Licence_and_Legal_FAQ can indeed
> be expanded, with some examples of "Dos" and "Don'ts"
> So I very much look forward LWG's next work
> https://wiki.osmfoundation.org/wiki/Licensing_Working_Group/Minutes/2019-01-10#Update_attribution_guidance
> Looking at the current practices in apps and web maps, that do not
> meet the current requirements, I am not happy with missing or hidden
> or hard-to-reach attribution.
> So if we have to be explicit about the bare minimum for online maps, I
> would require:
> - Minimum attribution MUST be full “© OpenStreetMap contributors”
> whenever possible, or 15 characters, “© OpenStreetMap”, whatever fits
> best.
> - MUST have a clickable link to osm.org/copyright
> <http://osm.org/copyright> or osm.org/about <http://osm.org/about>.
> - MUST be big enough and with enough contrast to be readable and
> clickable.
> - MUST be at least the prominence of other companies.
> - MUST be visible for at least 10 seconds.
> - MUST be expanded by default (expanded at start and whenever size
> allows).
> - MAY (optionally) be collapsed to a clickable icon or abbreviated “©
> OSM” or "Terms", "Credits", "data providers", ... (whenever size is
> not sufficient, or, when user clicks to collapse, or, after a delay)
> BUT other data providers MUST be equally treated and any other
> attribution (eg. map provider, map hosting, software, library...)
> SHOULD be similarly treated.
> - MUST be always possible to click only ONCE and get back the expanded
> attribution or a panel or a full page credits with extensive attribution.
> Beyond the bare minimum, I would suggest:
> - extra visibility, time on screen for OpenStreetMap, 
> - and extra texts, links, icons for special pages such as
> osm.org/welcome <http://osm.org/welcome> | osm.org/fixthemap
> <http://osm.org/fixthemap> | join.osmfoundation.org
> <http://join.osmfoundation.org> | donate.osm.org
> <http://donate.osm.org> | ... and for licences
> As a test bench last month, we (people from OpenStreetMap France) have
> tried to go the other route: 
> "let us display as much information as reasonably possible within
> attributions, for data, tiles, hosting and display (in French)".
> The result of our experimentation is
> here: https://osm-fr.github.io/osm-fr-front-map/ and embedded in the
> front page of openstreetmap.fr <http://openstreetmap.fr> so you can get an idea of what MAY be possible if you want to display
> richer attributions, this way or another, on big or small devices.
> Benoît
> Extra notes :
> +1 to this first response from Paul Norman:
>     With maps like this, I would expect a "reasonably calculated" 
>     attribution to have OSM with at least the prominence of other
>     companies.
> To Andy Mabbett:
> > 28 characters
> >> "We require that you use the credit “© OpenStreetMap contributors”...
> Or 15 characters “© OpenStreetMap” because:
> https://wiki.osmfoundation.org/wiki/Licence/Licence_and_Legal_FAQ#How_should_I_attribute_you.3F
> > Because OpenStreetMap is its contributors, you may omit the word
> "contributors" if space is limited.
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