Provides an overview of open source in the US DoD space.

1. The Open Source MovementAccelerating Software Development Joshua L. Davis joshua.davis@gtri.gatech.edu

3. Open Source Software = Free Software Libre Software Free/Open Source Software (FOSS or F/OSS) Free/Libre/Open Source Software (FLOSS)

5. Non-Commercial Software Freeware Shareware != Open Source Software

6. Open Architecture Open System Open Interface/Standard/Format != Open Source Software

7. Remember to think of “free” as in “free speech,” not as in “free beer.” Richard M. Stallman (1996)

9. The United States cannot retreat behind a Maginot Line of firewalls or it will risk being overrun. Cyberwarfare is like maneuver warfare, in that speed and agility matter most. William J. Lynn III (2010) ©davidplas photography

10. USER CANNOT CLEAN, FIX, MODIFY, OR UPGRADE

11. Open Source Software = Increased Agility/Flexibility Faster Delivery Increased Innovation Information Assurance & Security Lower Cost

17. Open Source Software = "software for which the human-readable source code is available for use, study, re-use, modification, enhancement, and re-distribution by the users of that software"* *Reference: 16 October 2009 memorandum from the DoD CIO, "Clarifying Guidance Regarding Open Source Software (OSS)"

18. Open Source Software = Commercial Off-The-Shelf (COTS)

27. Homeland Open Security Technology (HOST) Lead efforts of discovery, collaboration, and seedingdevelopment in open source software and practices that produce a measurable impact

28. Open Source Software = Commercial Off-The-Shelf (COTS) www.mil-oss.org Mil-OSS WG3 · August 2011 Homeland Open Security Technologies (HOST)

29. Questions Joshua L. Davis joshua.davis@gtri.gatech.edu