Earlier quoted context omitted.
Who did?
I don't know - not sure anyone does. Christine Peterson claims to have invented the term in 1998. https://opensource.com/article/18/2/coining-term-open-source... But at least this much is not true - we can see it being used, in context, at least as far back as 1996. I think people involved in this project at the time say it was a common term back then as well, but I can't find a reference for that now. http://www.xen…
And yes, Christine indeed invented the term, and folks from OSI gave it the current meaning by clearly defining it.