definition · term 1 of 25

binding constraint.

A constraint that the optimal plan meets exactly. Loosen it and the result improves; loosen any non-binding constraint and nothing changes.

worked examplethe quay binds, the cranes do notA berth plan uses 6 of 8 cranes but every metre of quay. The quay is binding: one more berth slot moves ships earlier. Two more cranes would change nothing.Illustrative values.
in plain language

Most rules in a plan have slack: the crane is not used at full capacity, the budget is not spent to the last euro. A few rules are met exactly at the optimum. Those binding constraints decide the outcome. They tell a manager where a negotiation, an investment or an exception would actually pay off, and where it would not change anything.

binding constraint, on your own decision.

Bring one recurring decision. Your planners see the terms of this glossary applied to their own rules and data.