FOSS Licenses: A first attempt
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university-logo . . . . . . Motivation FOSS Licenses Things you should remember! . . . FOSS Licenses Presenter: Emmanouil Dimogerontakis CC BY: C EMDC KTH November 26, 2012 Presenter: Emmanouil Dimogerontakis CC BY: C FOSS Licenses 1/15
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Afirst attempt to explore FOSS licenses
Transcript of FOSS Licenses: A first attempt
university-logo
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MotivationFOSS Licenses
Things you should remember!
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FOSS Licenses
Presenter: Emmanouil DimogerontakisCC© BY:© C©
EMDC KTH
November 26, 2012
Presenter: Emmanouil Dimogerontakis CC© BY:© C© FOSS Licenses 1/15
university-logo
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MotivationFOSS Licenses
Things you should remember!
What is FOSS?Licenses
.. .1 Motivation
What is FOSS?Licenses
.. .2 FOSS Licenses
OverviewMost Important FOSS LicensesMore than software
.. .3 Things you should remember!
Presenter: Emmanouil Dimogerontakis CC© BY:© C© FOSS Licenses 2/15
university-logo
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MotivationFOSS Licenses
Things you should remember!
What is FOSS?Licenses
.. Free Software
According to 1:
freedom to run the program, for any purpose
freedom to study how the program works, and change it so itdoes your computing as you wish
freedom to redistribute copies so you can help your neighbor
freedom to distribute copies of your modified versions toothers
1http://www.gnu.org/philosophy/free-sw.en.html
Presenter: Emmanouil Dimogerontakis CC© BY:© C© FOSS Licenses 3/15
university-logo
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MotivationFOSS Licenses
Things you should remember!
What is FOSS?Licenses
.. Open Source Software
gives a similar definition with FSF.but
more broad
more business-oriented
Presenter: Emmanouil Dimogerontakis CC© BY:© C© FOSS Licenses 4/15
university-logo
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MotivationFOSS Licenses
Things you should remember!
What is FOSS?Licenses
.. Software Distribution is Power
Presenter: Emmanouil Dimogerontakis CC© BY:© C© FOSS Licenses 5/15
Source: http://permaculturepolitics.blogspot.se/2010/07/hows-that-recessioney-oily-thing.html
university-logo
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MotivationFOSS Licenses
Things you should remember!
What is FOSS?Licenses
.. Key Ideas
Traditional copyright
Public domain
Copyleft
Copyfree
Presenter: Emmanouil Dimogerontakis CC© BY:© C© FOSS Licenses 6/15
university-logo
. . . . . .
MotivationFOSS Licenses
Things you should remember!
What is FOSS?Licenses
.. Key Ideas
Traditional copyright
Public domain
Copyleft
Copyfree
Presenter: Emmanouil Dimogerontakis CC© BY:© C© FOSS Licenses 6/15
university-logo
. . . . . .
MotivationFOSS Licenses
Things you should remember!
What is FOSS?Licenses
.. Key Ideas
Traditional copyright
Public domain
Copyleft
Copyfree
Presenter: Emmanouil Dimogerontakis CC© BY:© C© FOSS Licenses 6/15
university-logo
. . . . . .
MotivationFOSS Licenses
Things you should remember!
What is FOSS?Licenses
.. Key Ideas
Traditional copyright
Public domain
Copyleft
Copyfree
Presenter: Emmanouil Dimogerontakis CC© BY:© C© FOSS Licenses 6/15
university-logo
. . . . . .
MotivationFOSS Licenses
Things you should remember!
OverviewMost Important FOSS LicensesMore than software
.. .1 Motivation
What is FOSS?Licenses
.. .2 FOSS Licenses
OverviewMost Important FOSS LicensesMore than software
.. .3 Things you should remember!
Presenter: Emmanouil Dimogerontakis CC© BY:© C© FOSS Licenses 7/15
university-logo
. . . . . .
MotivationFOSS Licenses
Things you should remember!
OverviewMost Important FOSS LicensesMore than software
.. Overview
The licenses:
more than 70 FOSS licenses
most important: GPL, BSD, MIT, Apache
The struggle:
Community (or company) Viability VS User Freedom
Copyleft (or copyright) VS Permissive
Presenter: Emmanouil Dimogerontakis CC© BY:© C© FOSS Licenses 8/15
university-logo
. . . . . .
MotivationFOSS Licenses
Things you should remember!
OverviewMost Important FOSS LicensesMore than software
.. Overview
The licenses:
more than 70 FOSS licenses
most important: GPL, BSD, MIT, Apache
The struggle:
Community (or company) Viability VS User Freedom
Copyleft (or copyright) VS Permissive
Presenter: Emmanouil Dimogerontakis CC© BY:© C© FOSS Licenses 8/15
university-logo
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MotivationFOSS Licenses
Things you should remember!
OverviewMost Important FOSS LicensesMore than software
.. GPL
Name GPLv3 LGPLv3
approved Yes Yes
approved Yes Yes
Strong Weak
No No
Linking with other licenses No Yes
Presenter: Emmanouil Dimogerontakis CC© BY:© C© FOSS Licenses 9/15
university-logo
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MotivationFOSS Licenses
Things you should remember!
OverviewMost Important FOSS LicensesMore than software
.. BSD
Name ”original” ”new” ”simplified”
approved Yes Yes Yes
approved No Yes Yes
No No No
No Yes Yes
compatible No Yes Yes
Linking with other licenses Yes Yes Yes
Presenter: Emmanouil Dimogerontakis CC© BY:© C© FOSS Licenses 10/15
university-logo
. . . . . .
MotivationFOSS Licenses
Things you should remember!
OverviewMost Important FOSS LicensesMore than software
.. Apache
Name Apache v2.0
approved Yes
approved Yes
No
No
compatible Yes
Linking with other licenses Yes
Presenter: Emmanouil Dimogerontakis CC© BY:© C© FOSS Licenses 11/15
university-logo
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MotivationFOSS Licenses
Things you should remember!
OverviewMost Important FOSS LicensesMore than software
.. Creative Commons
Attribution
Share-alike
Non-commercial
No derivatives
Example:
FOSS Licenses by Manos Dimogerontakis is licensed
under a Creative Commons Attribution-ShareAlike 3.0
Unported License.
Presenter: Emmanouil Dimogerontakis CC© BY:© C© FOSS Licenses 12/15
university-logo
. . . . . .
MotivationFOSS Licenses
Things you should remember!
OverviewMost Important FOSS LicensesMore than software
.. Creative Commons
Attribution
Share-alike
Non-commercial
No derivatives
Example:
FOSS Licenses by Manos Dimogerontakis is licensed
under a Creative Commons Attribution-ShareAlike 3.0
Unported License.
Presenter: Emmanouil Dimogerontakis CC© BY:© C© FOSS Licenses 12/15
university-logo
. . . . . .
MotivationFOSS Licenses
Things you should remember!
.. .1 Motivation
What is FOSS?Licenses
.. .2 FOSS Licenses
OverviewMost Important FOSS LicensesMore than software
.. .3 Things you should remember!
Presenter: Emmanouil Dimogerontakis CC© BY:© C© FOSS Licenses 13/15
university-logo
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MotivationFOSS Licenses
Things you should remember!
Do not write your own license
Check license compatibility
Permissive 6= Good
Support the community
Questions ?
Presenter: Emmanouil Dimogerontakis CC© BY:© C© FOSS Licenses 14/15
Source: http://www.davidicke.com/images/stories/Oct2012/remember-brain.jpg
university-logo
. . . . . .
MotivationFOSS Licenses
Things you should remember!
Do not write your own license
Check license compatibility
Permissive 6= Good
Support the community
Questions ?
Presenter: Emmanouil Dimogerontakis CC© BY:© C© FOSS Licenses 14/15
Source: http://www.davidicke.com/images/stories/Oct2012/remember-brain.jpg
university-logo
. . . . . .
MotivationFOSS Licenses
Things you should remember!
Do not write your own license
Check license compatibility
Permissive 6= Good
Support the community
Questions ?
Presenter: Emmanouil Dimogerontakis CC© BY:© C© FOSS Licenses 14/15
Source: http://www.davidicke.com/images/stories/Oct2012/remember-brain.jpg
university-logo
. . . . . .
MotivationFOSS Licenses
Things you should remember!
Do not write your own license
Check license compatibility
Permissive 6= Good
Support the community
Questions ?
Presenter: Emmanouil Dimogerontakis CC© BY:© C© FOSS Licenses 14/15
Source: http://www.davidicke.com/images/stories/Oct2012/remember-brain.jpg
university-logo
. . . . . .
MotivationFOSS Licenses
Things you should remember!
Do not write your own license
Check license compatibility
Permissive 6= Good
Support the community
Questions ?
Presenter: Emmanouil Dimogerontakis CC© BY:© C© FOSS Licenses 14/15
Source: http://www.davidicke.com/images/stories/Oct2012/remember-brain.jpg
university-logo
. . . . . .
MotivationFOSS Licenses
Things you should remember!
Do not write your own license
Check license compatibility
Permissive 6= Good
Support the community
Questions ?
Presenter: Emmanouil Dimogerontakis CC© BY:© C© FOSS Licenses 14/15
Source: http://www.davidicke.com/images/stories/Oct2012/remember-brain.jpg
university-logo
. . . . . .
MotivationFOSS Licenses
Things you should remember!
Sources:
http://www.fsf.org/
http://opensource.org/
http://creativecommons.org/
http://www.wikipedia.org/
Interesting links:
http://web.law.duke.edu/cspd/comics/
http://www.revolution-os.com/
Presenter: Emmanouil Dimogerontakis CC© BY:© C© FOSS Licenses 15/15
