Library / Operations Management Principles Framework
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OPS.8.1:3 - Forces

ForcePractical tension
Earlier release and correction capacityStarting sooner can advance new work but occupy the resource needed when an earlier result returns.
Simple counts and unequal demandsOne freed place is easy to recognize; the returning and incoming jobs may require very different resources and times.
Protection and useful idle timeHolding capacity can preserve a deadline; excessive protection postpones work without improving the required service.
Feedback timing and decisionsWaiting can reveal whether a return is needed, but that information may arrive too late to protect the result.
Local pace and the receiving resultA constraint’s completion can regulate replenishment while another resource or downstream join determines customer delivery.