What was Bruce Ismays secuitry called?

Bruce Ismay's security system was referred to as the "Ismay-Isherwood System." This system was employed on the RMS Titanic and was designed to ensure the ship's safety through a series of watertight compartments and other safety features. Ismay, as the managing director of the White Star Line, played a significant role in promoting these advancements in marine safety, although the tragic sinking of the Titanic ultimately highlighted their limitations.