{"id":21220,"key":"Content_license_compatibility","title":"Content license compatibility","latest":{"id":1205871,"timestamp":"2025-11-27T19:06:10Z"},"content_model":"wikitext","license":{"url":"https://www.appropedia.org/Appropedia:Copyrights","title":"CC-BY-SA-4.0"},"source":"In fact, the only compatible \"licenses\" in popular usage are ones which enable one-way compatibility:\n\n* [[Public domain]] - not a true license, allows reuse under any terms, without restrictions.\n* [[CC-BY]] - allows reuse anywhere, under any license or copyright, provided attribution is given.\n\nOne key difficulty now with sharing content is the popularity of various licenses, especially [[Creative Commons]], which are not all compatible. For example, [[NonCommercial]] and [[NoDerivatives]] clauses break compatibility with true [[open licenses]] such as [[CC-BY-SA]] (using only the the [[Attribution]] and [[ShareAlike]] clauses) as used by [[Appropedia]] and [[Wikipedia]].\n\nThis is unhelpful in creating a [[successful commons]], but is often an unintended consequence as the implications of these license choices are poorly understood among content creators.\n\n== See also ==\n\n* [[An Introduction to Creative Commons]] for an overview.\n\n{{Page data\n| license = CC-BY-SA-3.0\n}}\n\n[[Category:Licenses]]"}