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Open source101 licenses

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The slides from my Presentation at the Open Source 101 Conference at the McKimmon Center at NC State U: Open Source Licensing 101

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Open source101 licenses

  1. 1. OPEN SOURCE LICENSES 101 Jim Jagielski @jimjag AKA: How I learned to stop worrying and love Licenses
  2. 2. This work is licensed under a Creative Commons Attribution 3.0 Unported License. All images property of their respective copyright holders Jim Jagielski @jimjag ABOUT ME • Apache Software Foundation • Co-founder, Director, Member and Developer • Director • Outercurve, MARSEC-XL, OSSI, OSI (ex)… • Developer • Mega FOSS projects • IANAL • Sr. Director: Tech Fellows: Capital One
  3. 3. This work is licensed under a Creative Commons Attribution 3.0 Unported License. All images property of their respective copyright holders Jim Jagielski @jimjag WHAT’S IN YOUR PROJECT?
  4. 4. This work is licensed under a Creative Commons Attribution 3.0 Unported License. All images property of their respective copyright holders Jim Jagielski @jimjag LICENSES
  5. 5. This work is licensed under a Creative Commons Attribution 3.0 Unported License. All images property of their respective copyright holders Jim Jagielski @jimjag WHY? • Copyright is the default • Open Source is everywhere • The license determines use, re-use and distribution • Not understanding means risk
  6. 6. This work is licensed under a Creative Commons Attribution 3.0 Unported License. All images property of their respective copyright holders Jim Jagielski @jimjag LICENSE GOALS • Ensure what parts remain open source • Maintain control over code and direction • Provide common implementation for standards • Build community or commercial marketplace • For most end-users, this is the sole touch-point
  7. 7. This work is licensed under a Creative Commons Attribution 3.0 Unported License. All images property of their respective copyright holders Jim Jagielski @jimjag FREE SOFTWARE • “Free” as in “free speech” (not as in “free beer”, although free beer is good!) • Software freedom is a moral imperative. • Free Software Definition: • 4 basic freedoms must be maintained • Free Software ~== Open Source • F(L)OSS
  8. 8. This work is licensed under a Creative Commons Attribution 3.0 Unported License. All images property of their respective copyright holders Jim Jagielski @jimjag OPEN SOURCE • For software to be Open Source, it must be under an OSI approved Open Source License • Open Source Definition: http://www.opensource.org/docs/osd • 10 criteria • At last count, over 60 exist • New Open Source licenses are very hard to get approved • There are really 3 main types
  9. 9. This work is licensed under a Creative Commons Attribution 3.0 Unported License. All images property of their respective copyright holders Jim Jagielski @jimjag PROMISES
  10. 10. This work is licensed under a Creative Commons Attribution 3.0 Unported License. All images property of their respective copyright holders Jim Jagielski @jimjag LET’S PRETEND ==
  11. 11. This work is licensed under a Creative Commons Attribution 3.0 Unported License. All images property of their respective copyright holders Jim Jagielski @jimjag USE
  12. 12. This work is licensed under a Creative Commons Attribution 3.0 Unported License. All images property of their respective copyright holders Jim Jagielski @jimjag MODIFY
  13. 13. This work is licensed under a Creative Commons Attribution 3.0 Unported License. All images property of their respective copyright holders Jim Jagielski @jimjag SHARE
  14. 14. This work is licensed under a Creative Commons Attribution 3.0 Unported License. All images property of their respective copyright holders Jim Jagielski @jimjag GIVE ME CREDIT Permissive: ALv2 MIT BSD
  15. 15. This work is licensed under a Creative Commons Attribution 3.0 Unported License. All images property of their respective copyright holders Jim Jagielski @jimjag GIVE ME FIXES Weak Copyleft: EPL LGPL
  16. 16. This work is licensed under a Creative Commons Attribution 3.0 Unported License. All images property of their respective copyright holders Jim Jagielski @jimjag GIVE ME EVERYTHING Strong Copyleft GPLv2 GPLv3 AGPL GPL GPL GPL GPL GPL GPL GPL GPL GPL GPL GPLGPL GPL GPL GPL
  17. 17. This work is licensed under a Creative Commons Attribution 3.0 Unported License. All images property of their respective copyright holders Jim Jagielski @jimjag TAKE AWAYS • A license is a tool. There is no “always right” license • Take time to decide on the right license type • Changing licenses can be very difficult • Avoid “vanity” licenses • ALWAYS specify a license!
  18. 18. This work is licensed under a Creative Commons Attribution 3.0 Unported License. All images property of their respective copyright holders Jim Jagielski @jimjag THANKS! • Jim Jagielski • @jimjag (follow me!) • http://www.jimjag.com/ • http://slideshare.net/jimjag/ • jimjag@gmail.com

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