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== Summary ==
== Summary ==
This document defines "Libre Works" (
This document defines "Libre Works" ([[Definition|Free Cultural Works]]) as works or expressions which can be freely studied, applied, copied and/or modified, by anyone, for any purpose. It also describes certain permissible restrictions that respect or protect these essential freedoms. The definition distinguishes between ''libre works'', and ''[[licenses|libre licenses]]'' which can be used to legally protect the status of a libre work. The definition itself is ''not'' a license; it is a tool to determine whether a work or license should be considered "libre".
== Preamble ==
== Preamble ==
Latest revision as of 18:33, 31 December 2014
Libre Works Definition
DERIVED FROM: Definition of Free Cultural Works
This document defines "Libre Works" (including Free Cultural Works) as works or expressions which can be freely studied, applied, copied and/or modified, by anyone, for any purpose. It also describes certain permissible restrictions that respect or protect these essential freedoms. The definition distinguishes between libre works, and libre licenses which can be used to legally protect the status of a libre work. The definition itself is not a license; it is a tool to determine whether a work or license should be considered "libre".
Social and technological advances make it possible for a growing part of humanity to access, create, modify, publish and distribute various kinds of works - artworks, scientific and educational materials, software, articles - in short: anything that can be represented in digital form. Many communities have formed to exercise those new possibilities and create a wealth of collectively re-usable works.
Most authors, whatever their field of activity, whatever their amateur or professional status, have a genuine interest in favoring an ecosystem where works can be spread, re-used and derived in creative ways. The easier it is to re-use and derive works, the richer our society become.
To ensure the graceful functioning of this ecosystem, works of authorship should be libre (free as in freedom), and by freedom we mean:
- the freedom to use the work and enjoy the benefits of using it
- the freedom to study the work and to apply knowledge acquired from it
- the freedom to make and redistribute copies, in whole or in part, of the information or expression
- the freedom to make changes and improvements, and to distribute derivative works
If authors do not take action, their works are covered by existing copyright laws, which severely limit what others can and cannot do. Authors can make their works libre by choosing among a number of legal documents known as licenses. For an author, choosing to put their work under a libre license does not mean that they lose all their rights, but it gives to anyone the freedoms listed above.
It is important that any work that claims to be libre provides, practically and without any risk, the aforementioned freedoms. This is why we hereafter give a precise definition of freedom for licenses and for works of authorship.
Identifying Libre Works
This is the Definition of Libre Works, and when describing your work, we encourage you to make reference to this definition, as in, "This is a libre-licensed work, as explained in the Definition of Libre Works." If you do not like the term "Libre Work" or "Free Cultural Work", you can use a generic term such as "Libre Resource" or "Free Content", or refer instead to one of the existing movements that express similar freedoms in more specific contexts. We also encourage you to use the Free Cultural Works logos and buttons, which are in the public domain.
Please be advised that such identification does not actually confer the rights described in this definition; for your work to be truly libre, it must use one of the Libre Licenses or be in the public domain.
We discourage you to use other terms to identify Libre Works which do not convey a clear definition of freedom, such as "Open Content" and "Open Access." These terms are often used to refer to content which is available under "less restrictive" terms than those of existing copyright laws, or even for works that are just "available on the Web".
Defining Libre Licenses
Licenses are legal instruments through which the owner of certain legal rights may transfer these rights to third parties. Libre Licenses do not take any rights away -- they are always optional to accept, and if accepted, they grant freedoms which copyright law alone does not provide. When accepted, they never limit or reduce existing exemptions in copyright laws.
In order to be recognized as "libre" under this definition, a license must grant the following freedoms without limitation:
- The freedom to use and perform the work: The licensee must be allowed to make any use, private or public, of the work. For kinds of works where it is relevant, this freedom should include all derived uses ("related rights") such as performing or interpreting the work. There must be no exception regarding, for example, political or religious considerations.
- The freedom to study the work and apply the information: The licensee must be allowed to examine the work and to use the knowledge gained from the work in any way. The license may not, for example, restrict "reverse engineering".
- The freedom to redistribute copies: Copies may be sold, swapped or given away for free (gratis), as part of a larger work, a collection, or independently. There must be no limit on the amount of information that can be copied. There must also not be any limit on who can copy the information or on where the information can be copied.
- The freedom to distribute derivative works: In order to give everyone the ability to improve upon a work, the license must not limit the freedom to distribute a modified version (or, for physical works, a work somehow derived from the original), regardless of the intent and purpose of such modifications. However, some restrictions may be applied to protect these essential freedoms or the attribution of authors (see below).
Not all restrictions on the use or distribution of works impede essential freedoms. In particular, requirements for attribution, for symmetric collaboration (i.e., "copyleft"), and for the protection of essential freedom are considered permissible restrictions.
Defining Libre Works
In order to be considered libre, a work must be covered by a Libre License, or its legal status must provide the same essential freedoms enumerated above. It is not, however, a sufficient condition. Indeed, a specific work may be non-libre in other ways that restrict the essential freedoms. These are the additional conditions in order for a work to be considered libre:
- Availability of source data: Where a final work has been obtained through the compilation or processing of a source file or multiple source files, all underlying source data should be available alongside the work itself under the same conditions. This can be the score of a musical composition, the models used in a 3D scene, the data of a scientific publication, the source code of a computer application, or any other such information.
- Use of a libre format: For digital files, the format in which the work is made available should not be protected by patents, unless a world-wide, unlimited and irrevocable royalty-free grant is given to make use of the patented technology. While non-libre formats may sometimes be used for practical reasons, a libre format copy must be available for the work to be considered libre.
- No technical restrictions: The work must be available in a form where no technical measures are used to limit the freedoms enumerated above.
- No other restrictions or limitations: The work itself must not be covered by legal restrictions (patents, contracts, etc.) or limitations (such as privacy rights) which would impede the freedoms enumerated above. A work may make use of existing legal exemptions to copyright (in order to cite copyrighted works), though only the portions of it which are unambiguously libre constitute a libre work.
In other words, whenever the user of a work cannot legally or practically exercise his or her basic freedoms, the work cannot be considered and should not be called "libre".
- See Licenses for discussion of individual licenses, and whether they meet this definition or not.
- See History for acknowledgments and background on this definition.
- See the FAQ for some questions and answers.
- See Portal:Index for topic-specific pages about libre works.