PULL SIGNALS & FLOW CONTROL
Kanban
Kanban is a signaling method used to authorize or control work and replenishment. In lean material flow, a signal can tell an upstream process what quantity is needed after downstream consumption.
KANBAN IN PRACTICE
- Define the signalSpecify item, quantity and trigger.
- Control the responseReplenish or start work within agreed rules.
- Review the systemCheck shortages, queues and changed demand.
Use the agreed units, actual records and approved procedures for your operation.
A WORKED EXAMPLE
Consumption triggers a controlled replacement.
When a defined bin is consumed, its signal requests one replacement quantity. The team verifies the item and bin quantity rather than interpreting every card as permission to produce any amount.
WHAT THIS MEANS FOR YOUR QUOTE
Agree the requirement before comparing quotes
Use the actual shipment, stock and service requirements. Record the billing unit, included work and responsibility for exceptions.
A LITTLE MORE CONTEXT
Questions about Kanban
Does kanban always mean a digital task board?
No. It also describes material-flow signaling.
Does a signal authorize unlimited output?
No. It needs a defined quantity and rule.
Should rules be reviewed when conditions change?
Yes.
Source & example notes
Lean Enterprise Institute: lean lexicon.
Sources provide background on the linked topic. Product documentation describes a particular implementation; confirm the rules, contract and procedures that apply to your operation.
Quantities, costs and scenarios are illustrative, not operating targets, approved handling instructions or guarantees. Source guidance reviewed 22 October 2026.
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