The Goal
by Eliyahu M. Goldratt
Improving any part of a system other than its binding constraint produces no improvement at all; throughput is set by the bottleneck, so the only work that matters is finding it and relieving it.
What it teaches
Goldratt makes his argument through a novel about a plant manager with three months to save a failing factory, which lets the reasoning arrive as discovery rather than doctrine. The central insight is that a chain of dependent steps with variable output is governed entirely by its slowest link: an hour lost at the constraint is an hour lost by the whole system, while an hour saved anywhere else is an illusion. This overturns the local efficiency measures most organisations run on, because keeping every station busy simply piles inventory in front of the bottleneck and hides the problem. His five focusing steps — identify the constraint, exploit it, subordinate everything else to it, elevate it, then start again because the constraint will have moved — are the method that follows. Running underneath is a warning about measurement: people behave according to how they are measured, so a metric that rewards local output will reliably produce global stagnation. Written for manufacturing and since carried into software, hospitals and personal productivity, the constraint logic transfers cleanly to any system with dependent steps.
The ideas this book explains
Read the idea in two minutes, then read the book behind it.
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