To measure progress toward this single goal, Goldratt replaces traditional cost accounting with three simple operational metrics:
Alex discovers that a slow, overweight boy named is at the back of the line, dictating the speed of the entire group. No matter how fast the boys at the front walk, they cannot speed up the arrival of the group because they are limited by Herbie. the goal by eliyahu m. goldratt pdf
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Align the rest of the system to match the pace of the bottleneck. Non-bottlenecks must not produce more than the bottleneck can handle, otherwise inventory builds up. Non-bottlenecks must not produce more than the bottleneck
All the money the system spends in order to turn inventory into throughput. 2. The Theory of Constraints (TOC)
Everything else is just a means to that end. Jonah points out that traditional accounting metrics—like local efficiency, cost-per-part, and high machine utilization—often mask deep operational problems. To evaluate whether the plant is successfully moving toward "The Goal," Jonah introduces three operational metrics:
The book "The Goal" offers several key takeaways that are still relevant today: