WIP Limits and Dispatch for Flow
More released work can lengthen lead time when the bottleneck is already full.
When a bottleneck is saturated, releasing more work usually adds queue rather than throughput.
Define the decision before comparing options
Start with the operating constraint and the outcome that matters. Put volume, time, cost, and service assumptions in one place so the comparison answers a real decision rather than a vague preference.
Worked example from the live calculator
At 20 units per day and a five-day lead-time target, the live WIP calculator returns a 100-unit cap. At 130 units of current WIP, expected lead time rises to 6.5 days.
Use the linked engines as a decision chain
These engines address different parts of the same choice: wip-limit-decision, dispatch-rule-comparator, finite-capacity-load. Run them in sequence, carrying the measured constraint and stated assumptions forward instead of re-entering convenient defaults.
Turn the result into an operating action
Use the recommended option as a trigger for a manager review. Confirm the input data, identify the condition that would flip the result, assign an owner, and revisit the choice when demand, cost, or capacity changes.
Key takeaway. A trustworthy operating decision is a chain of measured constraints and explicit tradeoffs, not a single isolated calculation.
Assumptions
- Use current local costs, capacities, and operating constraints before acting on a planning result.
Sources
- Platform calculation models and stated operating assumptions
Last updated: 2026-08-27
Frequently asked questions
Does this replace local operating judgment?
No. It organizes the tradeoffs and shows which input can change the recommendation.
What inputs deserve the closest review?
The inputs with the largest cost, service, or capacity effect in your actual operation.
How often should this be revisited?
Whenever demand, labor cost, lead time, utilization, or the operating constraint changes materially.