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Licence/Licence and Legal FAQ: Difference between revisions

Licence/Licence and Legal FAQ (view source)

Revision as of 09:11, 11 September 2012

1,419 bytes added ,  11 years ago
→‎What do you mean by Share-Alike?: CC-BY-SA -> ODbL edit
(→‎How should I attribute you?: CC-BY-SA -> ODbL edit)
(→‎What do you mean by Share-Alike?: CC-BY-SA -> ODbL edit)
== What do you mean by Share-Alike?==
 
If you publicly use any adapted version of our database, or a partial extraction from it, or works, (such as maps), produced from an adapted database, you must also offer that adapted database under the ODbL.
The CC-BY-SA summarises Share-Alike as "If you alter, transform, or build upon this work, you may distribute the resulting work only under the same or similar license to this one."
 
In other words, if you improve our data and then distribute it, you need to share your improvements with the general public at no charge. A painless way to do that is to contribute your improvements directly back to OpenStreetMap.
In other words,
 
*Share-Alike only applies if you distribute what you have done to outside people or organisations. You can do what you like at home, or in your school, organisation or company ... Share-Alikethe onlyfollowing appliessection ifdoes younot distribute what you have doneapply to outsideyou. people or organisations.
 
===What exactly do I need to share?===
* if you make a map from OSM data and publish, you license the map as CC-BY-SA. Anyone can make a copy of your map without paying you or asking your permission.
 
ODbL draws a distinction between data, (geodata), and works produced from the data, (maps). You are probably distributing data if you are involved in searching, routing, geocoding. You are probably distributing maps if you print paper maps, have a website with map tiles, or are displaying a map as part of a larger work such as a television show, film, advertisment or book. Sometimes, you may be doing both, for example games production, such as a flight simulator, may involve producing a 3D world and using geodata directly to generate a list of destinations.
* if you mix OSM data with other data and publish, you license it all as CC-BY-SA. Anyone can make a copy of your data without paying you or asking your permission.
 
In brief summary:
One problem with CC-BY-SA is where does Share-Alike stop. If you "build upon this work" to make a book with a map in it, does that mean people can copy just the map or the whole book? This is not clear and one reason we want to change the license. Meanwhile, the community has so far generally accepted the following guidelines. The OpenStreetMap Foundation is happy with these guidelines, but we must point out that the final decision is up to any individual contributor, not us.
 
* If you publishcorrect aor mapextend insideour a larger workdata, Share-Alikeyou appliesneed to the map, notshare theyour largernew workdata.
 
* If you make a map from our data, you may publish the map itself under any license you like, including commercial. You DO however, have to share the underlying data except that ...
* If you have a website using OSM-derived map tiles, Share-Alike applies to the map tiles. If you then put separate and distinct data layers on top, such as icons showing specialists points of interest or routes, track logs and the like, then Share-Alike does not apply to these elements as long as they do not interact with the map underneath.▼
 
* You may also add separate and distinct layers to your map made from other sources of data. This data does not have to be shared, provided there is no interaction with the OpenStreetMap derived layer. For example, you cannot have a layer of restaurant icons that only appear if the same restaurant is not in OpenStreetMap!
* If you enhance OSM data with other data, for example adding missing roads or adding more restaurants, then Share-Alike applies to the whole thing. This is generally known as a "Derived Work".▼
 
In more detail:
* If you publish a set of OSM data as a file or database, with other separate files or databases, this is generally known as a "Collective Work". The CC-BY-SA clearly states that Share-Alike does not apply to the other parts of a Collective Work.▼
 
If you are distributing geodata derived wholly or in part from OpenStreetMap, you need to do that under the ODbL.
 
▲* If you enhance OSMOpenStreetMap data with other data, for example adding missing roads or adding more restaurants, then Share-Alike applies to the whole thing. This is generally known as a "Derived WorkDatabase".
 
▲* If you publish a set of OSM data as a file or database, with other separate files or databases, this is generally known as a "Collective WorkDatabase". The CC-BY-SAODbL clearly states that Share-Alike does not apply to the other parts of a Collective WorkDatabase.
 
If you make a map from OpenStreetMap geodata and publish it, you may publish the map under any license you like. In ODbL parlance, this is known as a "Produced Work".
 
* If the map is in a larger work, like a book or a TV program or a website or an advertisment, that larger work can be under any license you like. Share-Alike does apply to the larger work. We, for example, use CC-BY-SA, but that is our voluntary choice.
 
* However, if you have added to or enhanced our data in order to make the map, you must make those additions publicly available without charge. Also, anyone can extract the original data from the map, (such as latitude and longitudes, names of streets and places), without paying you or asking your permission.
 
▲* IfYou youcan have a website using OSM-derived map tileshowever, Share-Alike applies to the map tiles. If you then put separate and distinct data layers on top of your map, such as icons showing specialists points of interest or, routes, track logs, shaded areas, contours and the like, then Share-Alike does not apply to these elements as long as they do not interact with the map underneath.
 
== More information about ODBL ==
Retrieved from "https://osmfoundation.org/wiki/Special:MobileDiff/1810"