<div dir="ltr">Yes, that was what I was going to do. However, I realised that the license for OSM will change soon. So, if I start using the CC-BY-SA license for coordinates on my web site, I would have to change soon to the new OSM license (ODBL).<br>
<br>Which raises an interesting question: if my web site had 10000 CC-BY-SA licensed coordinates derived from OSM, how could I change that license to the new ODBL license? I would have to send an email to all OSM contributors and ask for the permission? I bet I couldn't get a 100% approval. Fortunately, I don't have such a data set, so I don't have to worry about this.<br>
<br>However, that raises another worrying question: Once the new ODBL license is effective, how do I know that the license won't change again (see <a href="http://lists.openstreetmap.org/pipermail/legal-talk/2008-September/001158.html">http://lists.openstreetmap.org/pipermail/legal-talk/2008-September/001158.html</a> : "I assure everyone the license will need to be changed again at some point in the future.") How will I be able to handle the next license change?<br>
<br>Of course, old coordinates could remain licensed under CC-BY-SA, the new coordinates licensed under ODBL and the future coordinates under ODBL2. Then, I want to create a derivative work out of these (say, count the number of places within London). Which license to use for the result??<br>
<br>This makes the usage of OSM questionable, so I have decided not to use the OSM map on my site, at least for the time being.<br><br>BR,<br>Kari<br><br><br><br><div class="gmail_quote">On Thu, Sep 4, 2008 at 11:26 AM, Rob Myers <span dir="ltr"><<a href="mailto:rob@robmyers.org" target="_blank">rob@robmyers.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Depending on how it relates to the OSM data, you might be able to BY<br>
your data, and then this could be combined with OSM's data to produce<br>
a BY-SA derivative.<br>
<br>
See here for compatibility: <a href="http://creativecommons.org.tw/licwiz/english.html" target="_blank">http://creativecommons.org.tw/licwiz/english.html</a><br>
<br>
- Rob.<br>
<div><div></div><div><br>
On Thu, Sep 4, 2008 at 7:52 AM, Kari Pihkala <<a href="mailto:kari.pihkala@gmail.com" target="_blank">kari.pihkala@gmail.com</a>> wrote:<br>
>> Hi,<br>
>><br>
>> I'm creating a web site where people can set locations for places over a<br>
>> osm<br>
>> map. I also allow public to download these coordinate sets freely.<br>
>> I think according to your share-alike license the derived coordinates must<br>
><br>
>> be under the same license (by-sa 2.0)? I'm ok about this.<br>
>><br>
>> However, people are also inserting additional information about these gps<br>
>> coordinates, such as place names, address, etc.<br>
>> As the data set is a combination of gps coordinates (derived from osm map)<br>
><br>
>> and names, addresses etc. does it mean that the whole data set must be<br>
>> licensed under by-sa-2.0??<br>
>><br>
>> BR,<br>
>> Kari<br>
><br>
> I'm anwering myself, as I found the answer in FAQ. (should have read it<br>
> first!!)<br>
><br>
><br>
> <a href="http://wiki.openstreetmap.org/index.php/Common_licence_interpretations" target="_blank">http://wiki.openstreetmap.org/index.php/Common_licence_interpretations</a><br>
><br>
><br>
> "I created a layer on top of an OSM map. What do I have to put under your<br>
> license?<br>
> ... If what you create is based on OSM data (for example if you create a new<br>
> layer by looking at the OSM data and refering to locations on it) then it is<br>
> likely you have created a derivative work.<br>
><br>
> ... If you have created a derivative work, the work as a whole must be<br>
> subject to the OSM licence. .."<br>
><br>
> I was thinking about licensing my own data under CC-BY, but your FAQ says<br>
> that I have to license it under CC-BY-SA.<br>
><br>
><br>
> I see two options for me:<br>
> 1. Dual license the data (all data with coordinates under CC-BY-SA, my data<br>
> without the coordinates under CC-BY)<br>
> 2. Single license the data under CC-BY without any coordinates. No one will<br>
> have access to the coordinates.<br>
><br>
><br>
> BR,<br>
> Kari<br>
><br>
><br>
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><br>
><br>
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