Measurement Layer
CEO question
How will we know whether the redesigned system is behaving as intended?
Scenario context
The key measure is not average lead time.
The key measure is the percentage of orders quoted and delivered within the customer’s accepted tolerance window.
This matters because the market is no longer rewarding average delivery performance. It is rewarding suppliers who can quote, deliver and repeat performance predictably within tolerance.
Benefit KPI
Lead-time reliability within customer tolerance.
Supporting confirmation measures include delivery performance and promise-date performance.
Assumption sensors
The assumption sensors test whether the design conditions required for the benefit are still holding.
These include:
release rate versus drum rate
time-based buffer penetration patterns
WIP accumulation upstream of the constraint
queue dispersion downstream of the constraint
schedule break-in frequency
frequency of management intervention required to stabilise flow
Tactical signals
Tactical signals show how the system is coping under operating pressure.
These include:
frequency of expediting
clustering of expediting
compensating resource patterns
overtime patterns
manual schedule intervention
Measurement logic
KPIs confirm whether the benefit has appeared.
Assumption sensors test whether the conditions required for the benefit still hold.
Tactical signals reveal where the system is compensating before benefit loss becomes visible.
What this layer proves
This layer confirms that measurement is not being used as reporting after the fact.
Measurement becomes the control system that allows the organisation to sense whether the design remains sufficient as operating conditions change.
Verified output
A measurement architecture that connects benefit KPIs, assumption sensors and tactical signals to the DBR release-control design.