1. Open Source Copyright © 2003 Patrick McDermott UC Berkeley Extension pmcdermott@msn.com

2. Rules Source Code is available May use for Free or Commercial uses Must pass along with same Licensing Some vendors support, for a charge “Sharing with Rules” Linus’s Law –Given Enough Eyeballs, All Bugs Are Shallow Linus Torvalds (Linus of Linux)

3. Cost Comparison Published 2011: Commercial MySQL @ $500 vs. $5,000 to $40,00 for Oracle, DB2 or SQL Server Annual $4,000 MySQL vs. $300,000 for Oracle

4. Checklist Features Support Ease of Use Stability Speed Training Licensing Actually, true of Any DB product…

5. Historical Altruism Open Source “Harnessing the Power of Communities” Self-Organizing Collaborative Communities –GNU/GPL General Public License –Linux/Apache Historical Altruism –OED –Meiji Japan –Amazon.com Reviewers –Wikipedia –YouTube –Bloggers Winchester, Simon, the Professor and the Madman: A Tale of Murder, Insanity, and the Making of the Oxford English Dictionary, New York: HarperCollins (0-06-017596-6), 1998.

6. Open Source & DB Management Pool of Developers & Testers Source Code available, Changes shared & inspected Not locked into a Vendor’s plans Multiple Versions, Choose the one you like No per seat licensing

7. Open Sores Disadvantages Incomplete documentation Specialized/Proprietary needs not covered Open Source Licenses vary “One size fits all”, features missing No Certification Standards It has to interest some volunteers, usually solve a problem THEY have