Share-alike

Значок Creative Commons для Share-alike, видоизменённый символ копилефта

Share-alike — описательный термин, используемый в проекте Creative Commons для копирайт-лицензий, которые включают определённые копилефт-положения.

Основные положения

Конкретное определение, используемое Creative Commons: «Если вы изменяете, трансформируете или берёте за основу данную работу, вы можете распространять полученное произведение только по такой же, подобной или совместимой лицензии.» Однако, общие вариации лицензий share-alike определяют СПО и открытый контент.[неоднозначно] Термин copyleft используется с 80-х для описания этих условий сообществом СПО, но только когда речь идёт о свободных лицензиях.

Примеры лицензий

С другой стороны, есть также много пермиссивных лицензий на СПО, которые не требуют применения условий share-alike, следовательно, разрешающих пользователям делать модификации и улучшения и применять модифицированную и более ограничительную лицензию.

Версии ShareAlike лицензий Creative Commons

Creative Commons издала 4 версии BY-SA и BY-NC-SA лицензий (1.0, 2.0, 2.5 и 3.0).

  • Attribution-ShareAlike Version 1.0 Generic [1] и Attribution-NonCommerical-ShareAlike Version 1.0 Generic [2] — выпущены в декабре 2002 года.
  • Attribution-ShareAlike Version 2.0 Generic [3] и Attribution-NonCommerical-ShareAlike Version 2.0 Generic [4] — выпущены в мае 2004 года.
  • Attribution-ShareAlike Version 2.5 Generic [5] и Attribution-NonCommerical-ShareAlike Version 2.5 Generic [6] — выпущены в июне 2005 года.
  • Attribution-ShareAlike Version 3.0 Unported [7] и Attribution-NonCommerical-ShareAlike Version 3.0 Unported [8] — выпущены в марте 2007 года.

См. также

Ссылки

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