Efficiency is the quality of pursuit of an objective.

rA3 The less the expense, of time or other materials, the more efficient the pursuit. Contrast effectiveness. Amdahl’s Law computes the overall effect of an efficiency improvement.

  1. Russell Ackoff, “Learning and Legacy of Dr. W. Edwards Deming - Continuous Improvement,” https://www.youtube.com/watch?v=OqEeIG8aPPk. (See notes.)