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Software Licenses
Books
Open Source
Glossary
Advertising Clause
Compatible Licenses
Copyleft
Derivative Works
Dual Licensing
FLOSS
FOSS
Free Software
Incompatible Licenses
OSD
OSI Certified
OSS
Permissive Licenses
Viral Licenses
Licenses
AGPL
Apache
Apple
Artistic
BSD
CDDL
CPL
EPL
GPL v2
GPL v3
IPL
LGPL
MIT
Mozilla
SPL
X License
X11 License
Organizations
ASF
FSF
OSI
SFLC
People
Bruce Perens
Eben Moglen
Eric Raymond
Lawrence Lessig
Linus Torvalds
Richard Stallman
Proprietary
Closed Source
Freeware
Shareware
Public Domain
Shared Source
MS Community License
MS Permissive License
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Derivative Works
In copyright law, a derivative work is a copyrighted work which includes
significant copyrighted aspects of a previously created work. It is worth
noting that a work can be a derivative work of more than one previous work
if it includes copyrighted elements of each of these previous works.
In United States law, "derivative work" is defined by
is defined in 17 U.S.C. § 101:
A "derivative work" is a work based upon one or more preexisting works,
such as a translation, musical arrangement, dramatization, fictionalization,
motion picture version, sound recording, art reproduction, abridgment,
condensation, or any other form in which a work may be recast, transformed,
or adapted. A work consisting of editorial revisions, annotations,
elaborations, or other modifications which, as a whole, represent an
original work of authorship, is a "derivative work".
In the software world, it is not necessary entirely clear how to apply to
the above text to defining derivative works, and hence the exact definition
of a derivative work is not clear either. The issue is of some import,
because strong
copyleft licenses
generally place requirements on the licensing of derivative works
(proprietary licenses typically do not
allow the creation of derivative works at all, except with the explicit
permission of the copyright-holder).
Related Links
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