INVENTORY & SUPPLY OPERATIONS
Theory of Constraints (TOC)
The Theory of Constraints is a management approach that focuses improvement on the constraint limiting a system’s overall performance. It coordinates other activity around that limit and reassesses as conditions change.
THEORY OF CONSTRAINTS IN PRACTICE
- Identify the limitFind what restricts the system outcome.
- Align the responseImprove use and coordinate other work.
- Reassess the systemReview after the change.
Use the agreed units, actual records and approved procedures for your operation.
A WORKED EXAMPLE
Faster picking. Same dispatch count.
A facility can pick 1,000 orders daily but its current packing process releases 700. Increasing picking to 1,200 does not by itself increase dispatch and may enlarge the queue. Investigate packing and the complete flow before approving more upstream capacity.
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 Theory of Constraints
Is the constraint always a physical bottleneck?
No. Policies, demand or material availability can also limit the system.
Does faster upstream work always help?
No. It can create queues without improving completed output.
Does the constraint stay fixed?
Not necessarily. Reassess after changes in conditions or capability.
Source & example notes
Definition and operational example prepared by 3PL Hub. Examples describe hypothetical requirements; verify the actual records and agreed procedures for your operation.
Quantities, costs and scenarios are illustrative, not operating targets, approved handling instructions or guarantees. Source guidance reviewed 23 October 2026.
Last updated: · 3PL Hub
