Data may also be fed to a Historian, often built on a commodity Database Management System, to allow trending and other analytical auditing.
historian | Records of the Grand Historian | Historian | Geostationary Operational Environmental Satellite | Vincent Orange (historian) | The Historian | Peter Gray (military historian) | Operational risk | Operational Group | John Richardson (art historian) | Eutropius (historian) | Czersk Operational Group | Aviation Security Operational Command Unit | Timaeus (historian) | Thomas Salmon (historian) | Thomas Pakenham (historian) | Operational conversion unit | operational | Official Historian of Puerto Rico | Justin (historian) | John Morris (historian) | John Morrill (historian) | David Montgomery (historian) | According to the art historian Linda Seidel, the ''Arnolfini Portrait | Wu Han (historian) | Wolfgang Scheffler (historian) | William Erskine (historian) | Southern Operational Command | Samuel Johnson (Nigerian historian) | Robert Service (historian) |