• up-postingThe automatic assignment of broader terms in addition to the specific term by which a document is indexed. Also known as autoposting. See also generic posting.
  • user interfaceThe way in which a user interacts with a computer-based system.
  • user warrantJustification for the representation of a concept in an indexing language or for the selection of a preferred term because of frequent requests for information on the concept or free-text searches on the term by users of an information storage and retrieval system. See also literary warrant and ...