Product testing, also called consumer testing or comparative testing, is a process of measuring the properties or performance of products.
cockpit. n. 1. (Aeronautics) the compartment in a small aircraft in which the pilot, crew, and sometimes the passengers sit. Compare flight deck 1. 2. (Motor Racing) the driver's compartment in a racing car.
Nautical. a vertical blade at the stern of a vessel that can be turned horizontally to change the vessel's direction when in motion. 2. Aeronautics. a movable control surface attached to a vertical stabilizer, located at the rear of an airplane and used, along with the ailerons, to turn the airplane. 3. any means of or device for governing, directing, or guiding a course, as a leader or principle: His ideas provided a rudder for the new company.