The operations centre at the top of Deep Space 9's central core, universally shortened to Ops, from which the senior staff run the station and monitor traffic through the Bajoran wormhole.
Ops is the command centre of Deep Space 9, a multi-level Cardassian-designed room at the summit of the station's core. It holds the central operations table, science and engineering stations, a transporter pad, a large viewscreen and a turbolift, with the station commander's office looking down on it from the top of a short flight of stairs.
Seen from Emissary through to What You Leave Behind, Ops is where Sisko, Kira, Dax and O'Brien handle most crises, and Miles O'Brien spends much of the early seasons coaxing its stubborn Cardassian systems into working with Starfleet technology.
The room changes hands more than once. In Civil Defense an old counter-insurgency programme seals the crew inside it, and during the Dominion occupation of 2373 and 2374 Dukat, Weyoun and Damar direct the station from there.