Open main menu
Home
Random
Recent changes
Special pages
Community portal
Settings
About Consumerium development wiki
Disclaimers
Consumerium development wiki
Search
User menu
Talk
Contributions
Log in
Editing
Share-alike
Warning:
You are not logged in. Your IP address will be publicly visible if you make any edits. If you
log in
or
create an account
, your edits will be attributed to your username, along with other benefits.
Anti-spam check. Do
not
fill this in!
'''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. It is a key feature of the [[GPL]] too which applies this principle to [[source code]]. It is sometimes called the '''viral license''' feature (see below) - 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]].'' The most common '''share-alike''' licenses used are in '''open content''' and in '''free documentation''' efforts, which require such licenses by definition: *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]] *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]] 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. ''See [[w:Share_Alike]] for a more general introduction linked to other legal topics.'' --------- See [[GPL]] and other [[free software]] [[license]]s to understand the details of what is meant by a '''viral license'''. This term is '''''not well defined'''' and should be avoided. [[Microsoft]] widely uses the term '''viral''' to portray both free software and consortia as being like [[computer virus]] creators, exploiting the confusion. The term is also sometimes used to imply [[required reintegration]], which is the controversial requirement that [[open source]] objects to in both free software and [[Consortium license]] software. When this is what is being discussed, it is far better to use this more specific term and not "'''viral'''". Some think they are two separate concerns, but they aren't: [[required reintegration]] *is* a part of making a license viral - without it, new software under new licenses can be produced, thus making the original license not apply, and thus not viral, or "as" viral, as the original. -------- [[faction]]al comment: [[Reds]] prefer [[Free Software]] apparently because everything "has to be free". [[Golds]] prefer [[Open Source]] apparently so they can exploit the commons without obligation to give back. [[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.
Summary:
Please note that all contributions to Consumerium development wiki are considered to be released under the GNU Free Documentation License 1.3 or later (see
Consumerium:Copyrights
for details). If you do not want your writing to be edited mercilessly and redistributed at will, then do not submit it here.
You are also promising us that you wrote this yourself, or copied it from a public domain or similar free resource.
Do not submit copyrighted work without permission!
To protect the wiki against automated edit spam, we kindly ask you to solve the following CAPTCHA:
Cancel
Editing help
(opens in new window)