NAPA, the Naval Architectural PAckage, is a CAD/CAE system for initial and basic ship design, comprising, among other things, hull surface definition, production-level fairing, definition of the ship's compartmentation and naval architectural calculations. Geometry definitions are based on a product model created by the system.

NAPA can be used both for preliminary design and for the production of final delivery documents. It covers all applications needed in ordinary naval architectural design and can handle floating structures of any kind.