From Consumerium development wiki R&D Wiki
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| '''Share-alike''' is a required reintegration clause of several [[parametric license]]s in [[Creative Commons]] and some monolithic ones like [[GFDL]]. It simply means that anyone improving a work must share the improved work with others who wish to use or improve it.
| | #REDIRECT [[share-alike]] |
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| It is a key feature of the [[GPL]] too which applies this principle to [[source code]]. It is sometimes called the '''viral license''' feature - the fact that accepting the license breeds more acceptance of the license. This is considered very desirable by some and very undesirable by others (who started the [[open source]] movement to oppose the '''share-alike''' requirement. ''See also [[problems with free software and open source models]].''
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| The most common '''share-alike''' licenses used are in '''open content''' and in '''free documentation''' efforts, which require such licenses by definition:
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| *the [[GFDL]], strictly share-alike, no license but the GFDL can apply to any improvements, and there are strict rules about what can go in [[Secondary Section]]s and [[Invariant Section]]s to which asymmetric rules might apply - this license is used at [[Wikipedia]]
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| *the [[CC-by-sa]] license, quite close to the [[GFDL]] but is incompatible with it. ''Things licensed under the CC regime are not part of the [[GFDL Corpus]].'' This license is used at [[Wikitravel]]
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| Most efforts use share alike licenses for both code and content, e.g. the '''CC-nc-sa''' license - the closest approximation yet to a [[Green Documentation License]] - is used for [[GetWiki]] code.
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| ''See [[w:Share_Alike]] for a more general introduction linked to other legal topics.''
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| --------
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| [[faction]]al comment:
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| [[Reds]] prefer [[Free Software]] apparently because everything "has to be free".
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| [[Golds]] prefer [[Open Source]] apparently so they can exploit the commons without obligation to give back.
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| [[Trolls]] like sharing, but bite you on the leg if you try to tell them they have to share with you, even if you are doing harm to them.
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Latest revision as of 16:39, 6 September 2004