Efficiency
Efficiency was an often measurable quality of performing well, without wasting materials, energy, money, or time.

Aboard the  in 2267, Earth probe Nomad increased engine efficiency by fifty-seven percent, but this would destroy the ship if not stopped as its structure could not handle the  of that much . ()

See also 
 Effectiveness
 Efficiency drill
 Efficiency monitor
 Efficiency rating

External link 
 

Measurements
Physics