"Whether you realize it or not, you're already familiar with controlled vocabularies. The Library of Congress subject headings and Yahoo's search criteria are a couple of examples. So, as you've probably guessed by now, controlled vocabularies are predete
Modern facet analytical theory contrasts with earlier views of knowledge as an integral whole (which is broken down into smaller and smaller units) in that it deals with individual terms or concepts which are clustered into categories to create a 'bottom-up' map of knowledge.