A subject scheme which organises knowledge into a hierarchy.
"A subject scheme which organises knowledge into a hierarchy. Term used mainly in computer science and software development, but now increasingly in information science, where a taxonomy looks much like a classification scheme for the web, usually without the notation."
From Currier, S and Wake, S "Negotiating Subject Access: Resources Discovery on the Web" in Library and Information Briefings, Issue 97, May 2001.
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