Briefing room The briefing room was a dedicated area on Federation starship s and on Federation and alien facilities where senior staff or military leaders could conduct meetings and various conferences . On starships , it was generally located near the ship ' s main bridge . On starships , there were a few types of briefing room , including the situation room , the command center , and the conference room . ( ) On and starships , the briefing room was referred to as the conference or observation lounge . " Constitution " - class . The original had at least two briefing rooms , but they were not located in close proximity to the bridge . One of these briefing rooms was located on Deck 14 . They also lacked windows , though not a wall viewer . A conference table – with a tri - screen viewer for the display of information , an inset computer terminal , and inset comm units – was placed in the center of the room , around which were several chair s . ( ; ) " Defiant " - class . The did not have a dedicated space for a briefing room , but the aft part of the bridge had a built - in table that acted as an informal area for officers to discuss mission - specific details . ( ) The mess hall could also be used for briefings . ( ) " Intrepid " - class . On vessels , the briefing room was located to the port side of the bridge , with three large view ports facing the front of the ship . The room offered many comforts and was equipped to provide a relaxed area for briefing . An odd - shaped table was located in the center of the room and could support seven chairs . The captain customarily sat at the head of the table , closest to the windows . A monitor was provided to allow visual aspects to be involved in a briefing . For more comfort , a replicator was provided . ( , " et al " ) On her initial tour of the , Captain Kathryn Janeway did not believe the briefing room looked very comfortable while Seven of Nine thought it an " efficient design " . The room was later decorated with various objects of art . ( ) Dominion Headquarters . Dominion Headquarters had a briefing room from where Dominion personnel , including Weyoun , the Female Changeling , Damar , Gor and Pran , directed the war . It was quite far from the cargo bay door of the building to the briefing room . Kira Nerys , Elim Garak , Ekoor and other Cardassian Rebellion members were able to fight their way there , in late 2375 . ( ) Deep Space 9 . Deep Space 9 ' s wardroom , the space station ' s equivalent of a briefing room , was commonly used to discuss various actions during the Dominion War . Background information . " Constitution " - class info . A briefing room which appears in , incidentally the first such room to ever feature in " Star Trek " , was built on Desilu Culver Stage 16 . In the episode " The Naked Time " , there is a sign which reads " Briefing Room 2 " , which is the clearest evidence we have for the existence of at least two of these rooms . The episode shows the room number plate for this room as " 3C 44 " . In " Dagger of the Mind " , there was a blue placard that reads , " Briefing Room - > " . This sign was located near the Science Library , and was seen briefly when Doctor Simon Van Gelder was running down a corridor and when he incapacitated a security guard . The " Constitution " - class briefing room was created by Matt Jefferies . ( text commentary , TOS Season 1 DVD ) The set used for depicting the room was situated on Desilu ' s Stage 9 . ( text commentary , TOS Season 1 DVD ) Although the set incorporated sloped ceiling beams that implied the room had a gently curved ceiling , the room actually had no ceiling . Most of the walls were straightly vertical , which cost much less to build , and only one of the room ' s walls was slightly angled . Hence , Michael and Denise Okuda characterized the angled ceiling beams as " ingeniously designed . " ( text commentary , TOS Season 1 DVD ) In the final draft script of , a scene which is set in one of the briefing rooms aboard the " Enterprise " had a scene heading which indicated it was to be set in a " conference room " . This was changed to " briefing room " by the time the revised final draft of the script was issued .