compartmentation

1. Division into compartments; compartmentalization.

   So as to prevent the spread of fire within a structure.

   The fire spread rapidly after the building's compartmentation failed.

2. So as to prevent the spread of water (or rarely, another fluid) between otherwise watertight compartments (especially on a ship).

   The Titanics compartmentation' did not stop water from entering rooms.

3. The dissemination of information and knowledge between different people or organisations on a need-to-know basis, so as to reduce the risk of espionage should one person or organisation be compromised externally; compartmentalization.

regular