Open Source Definition
Friday, May 26th, 2006http://en.wikipedia.org/wiki/Open_Source_Definition
Under the Open Source Definition, licenses must meet ten conditions in order to be considered open source licenses
Free Redistribution: the software can be freely given away or sold.
Source Code: the source code must either be included or freely obtainable.
Derived Works: redistribution of modifications must be allowed.
Integrity of The Author’s Source Code: licenses may require that […]
