What is Free and Open Source Software  Home ToC Prev Up Next 
Introduction
Principles
Geopolitics of Software Industry
History
"Sociology" of the movement
Legal considerations
Software Protection / Control
The 4 freedoms, again
Protections vs. Control
Software Patents
Categories of Licences :
Choosing a licence
GPL and LGPL
+FAQ: Open Source vs. Free  Software
Choosing Free/OpenSource software
Why address this question in classes at INT
Miscelleanous
Appendices
  

FAQ: Open Source vs. Free Software

What's the difference between Free Software and OpenSource Software ?

Talking about the movements ?

Well... there's much to say.

Talking about the licences ?

Free Software Foundation definition (4 freedoms[8])

Open Source Definition (10 requirements[9])

... in practice : 99 % the same
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[8] http://www.gnu.org/philosophy/free-sw.html

[9] http://www.opensource.org/docs/definition_plain.php