OtaSoft

There are a large number of Free-Libre / Open Source Software (FLOSS)
licenses, but only a few are widely used.
Unsurprisingly, the widely-used licenses tend to be compatible –
that is, it’s possible to combine software under the different licenses
to produce a larger work. But many people have trouble figuring out
when they can be combined, or how.

So I’ve created a little figure which I call the “FLOSS license slide” to
make it easier to see if FLOSS licenses can be combined in many common
cases, and if so, what the basic ramifications are.
I’ve crafted it so that the figure and explanatory text all fit in a page,
which can be handy.

You can look at the FLOSS license slide in one of two formats:

• PDF of “FLOSS License Slide”
• OpenDocument version of “FLOSS License Slide”

This is currently a draft, because I’d like to hear comments before
“finishing” this. Also, it’s based on the “final draft” of GPLv3; things
could change before that revision is complete (though I doubt it).
There’s no end in trying to add other licenses, but
if there’s a big mistake in this document, I’d like to know.
I’m not a lawyer, and if you need formal legal advice you need to consult your
own attorney. But for many people, this is the information you needed,
so here it is.

Original post by David A. Wheeler’s Blog and software by Elliott Back