Professional open-source is an open source software business model where an open source software vendor generates revenue from paid professional services, maintenance and support provided along with the software. Some open source software vendors also provide commercial licenses of open source software or customer specific versions of open source software to customers .
Famous quotes containing the word professional:
“In European thought in general, as contrasted with American, vigor, life and originality have a kind of easy, professional utterance. American—on the other hand, is expressed in an eager amateurish way. A European gives a sense of scope, of survey, of consideration. An American is strained, sensational. One is artistic gold; the other is bullion.”
—Wallace Stevens (1879–1955)