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:
“As a scientist I’m afraid I’m a professional skeptic who doubts everything, even the certainties.”
—Karl Brown (1897–1990)