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.
Turret(noun) a revolving tower constructed of thick iron plates, within which cannon are mounted. Turrets are used on vessels of war and on land. Turret(noun) the elevated central portion of the roof of a passenger car.