hypermedia - electronic publishing -- multimedia systems --< computer applications --<> information science --<>> document delivery --<>> information analysis --<>> information dissemination --<>> information needs --<>> information retrieval --<>> information services --<>> information use --<>- information industry --<> information systems --<>> public information systems --<>- information retrieval systems --<>-> online front-ends --<> publishing --<>- microforms --- telecommunication servicesIn the history, each selected term is shown below and one place to the right of the term from which it was derived. It is preceded by a symbolic representation of the "path" of relationships followed to reach it. The symbols <> and - stand for BT, NT and RT respectively. So, in the above example, the path --< indicates that the term in question was reached by following two associative links and then an upward hierarchical link.
See also summary navigation logs.