foss licenses: a first attempt

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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

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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

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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

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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

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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

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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

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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

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. . . . . .

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

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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

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. . . . . .

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

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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

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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

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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

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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

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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!

.. .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

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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

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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

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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