Recall the core rules and tradeoffs for a kanban replenishment loop.
Core rule What does a kanban signal authorize? It authorizes a defined production or withdrawal action: the right part, quantity, source, destination, and timing. If it does not authorize a concrete action, it is only a reminder, not a working kanban. Compare Push schedule vs pull signal Planning still matters; pull governs execution inside planned guardrails. Objection If machines wait for cards, utilization will fall. A supervisor wants to keep equipment busy by building ahead. Say A busy machine making unneeded parts steals capacity, space, and attention from customer demand. The card protects the system from that. Do not argue…
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