Nuclear & Critical Infrastructure Manufacturing worked example

Quality Hold Point Delay at 29% witness coordination and re-presentation allowance: a worked example

Push witness coordination and re-presentation allowance up to 29% and the picture changes. This example computes every intermediate figure at that operating point. Use it when a build has many hold points and you need to see how much wait time accumulates before QA or customer witness sign-off releases the work.

The inputs for this scenario

  • Hold points to clear: 20 hold points (unchanged)
  • Hold points cleared per hour: 2 hold points / hr (unchanged)
  • Witness coordination and re-presentation allowance: 29 % (raised for this scenario; the documented default is 25)

Working through the calculation

  • Applying the documented formula (Base hold point delay = hold points to clear รท hold points cleared per hour) to the inputs above produces each figure below.
  • At this operating point the engine returns 12.9 hr for required hold point delay, the number this scenario is built around.
  • At this operating point the engine returns 10 hr for base hold point delay.
  • At this operating point the engine returns 29 % for witness and re-presentation allowance applied.
  • At this operating point the engine returns 2 hold points / hr for hold points cleared per hour.

How this compares with the baseline

  • Against the tool's baseline example, where witness coordination and re-presentation allowance sits at 25% and the headline result is 12.5 hr, this scenario comes in 3.2% above the baseline at 12.9 hr.
  • It computes the total hours to clear all hold points on a job by dividing hold points by your per-hour clearance rate and adding a percentage allowance for witness coordination and re-presentation. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • Required hold point delay: 12.9 hr (headline result)
  • Base hold point delay: 10 hr
  • Witness and re-presentation allowance applied: 29 %
  • Hold points cleared per hour: 2 hold points / hr

Run it with your numbers

  • Every input above is editable in the live Quality Hold Point Delay calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.