Proposes that methods intended to assist in information retrieval be grouped together and that the group be called "informed retrieval," a process which uses feedback from an information system to improve retrieval results. It is suggested that an integrated framework be developed that includes authority control and informed retrieval as…

This essay addresses issue of uniformity or consistency in application of subject headings--as distinct from consistency among headings--to books on any given topic. Discussion covers purpose of subject headings or descriptors, reliability of choices made by catalogers when assigning subject headings, and card and online catalogs. (18 references)…