Copyleft can be defined as the opposite to copyright. When copyright protects author's creation, then copyleft has the purpose to maintain the freedom to use, spread and modify the creation by other people. The first and most spread copyleft licence is GNU GPL that holds the right to protect the user.
Copyleft licences give usually the user rights to research, use, copy, modify, share and distribute.
Example of weak copyleft is Mozilla Public License that is a free and open source software licence (for different Mozilla softwares: Application Suite, Firefox, Thunderbird, etc). Example of the strong copyleft is the mentioned GNU GPL - it means that the original author has the most of the rights to the creation.
No comments:
Post a Comment