How do you calculate an inspection risk score?

Multiply severity by occurrence by detection. With scores of 6, 4, and 3 the risk number is roughly 4.55 on the calculator's normalized scale, letting you rank it against other inspection steps.

What is a good inspection bottleneck risk score?

Lower is better. There is no universal threshold, but steps scoring near the top of your range deserve action first. Set an action limit for your line and treat anything above it as a priority.

What does a high detection score mean here?

A high detection score means the defect is hard to detect, which raises risk. Poorly detectable defects, like micro-channel seal leaks, drive the score up even when severity is moderate.

Is this the same as an FMEA RPN?

It uses the same severity by occurrence by detection logic as a Risk Priority Number. The output here is normalized for comparison but the ranking principle is identical.

How do I lower an inspection bottleneck risk score?

Improve detectability with better vision, lighting, or sampling to lower the detection score, or reduce occurrence upstream. Cutting detection from 3 to 1 roughly cuts the risk contribution from that factor by two-thirds.

Why score inspection steps instead of just inspecting everything?

Inspection capacity is finite and often the line bottleneck. Scoring focuses added cameras, second checks, and audits on the steps where an escape is most severe, likely, and hard to catch.

Sterilization & Sterile Barrier Manufacturing calculator

Inspection Bottleneck Calculator

Inspection Bottleneck applies FMEA-style risk scoring to the visual and machine-vision inspection steps that gate sterile barrier release. Quality engineers use it to rank which inspection points most threaten to let a seal defect, particulate, or unreadable label escape to the field. Severity captures how bad a missed defect would be, occurrence how often the defect arises, and detection how likely inspection is to catch it. The product highlights where limited inspection capacity and audit attention should go first.

What this calculator does

Estimate inspection bottleneck for sterilization and sterile barrier manufacturing using production-ready inputs so teams can rank risks and decide which issue needs containment, controls, or escalation first.
Use it when inspection bottleneck in sterilization and sterile barrier manufacturing needs a defensible ranking against other sterilization and sterile barrier manufacturing risks for the next review.
It multiplies severity, occurrence, and detection scores into a single risk priority number for an inspection step.

Formula used

Inspection bottleneck risk score = inspection bottleneck severity score × inspection bottleneck occurrence score × inspection bottleneck detection score
Use the same scoring scale across comparable inspection bottleneck risks.

Inputs explained

Escape severity if a defect passes inspection:
Likelihood of the defect occurring:
Inspection detectability of the defect:

How to use the result

Use it during process FMEA, line risk reviews, or when deciding which inspection stations need added controls or automation.
Scores are subjective ordinal ratings, so a risk number is only meaningful when the same scale and rating guide are used across all inspection steps compared.

Current U.S. benchmarks

U.S. manufacturing runs at 75.6% of capacity with new factory orders at $657B per month (Federal Reserve and Census, May 2026).

Common questions

How do you calculate an inspection risk score? Multiply severity by occurrence by detection. With scores of 6, 4, and 3 the risk number is roughly 4.55 on the calculator's normalized scale, letting you rank it against other inspection steps.
What is a good inspection bottleneck risk score? Lower is better. There is no universal threshold, but steps scoring near the top of your range deserve action first. Set an action limit for your line and treat anything above it as a priority.
What does a high detection score mean here? A high detection score means the defect is hard to detect, which raises risk. Poorly detectable defects, like micro-channel seal leaks, drive the score up even when severity is moderate.
Is this the same as an FMEA RPN? It uses the same severity by occurrence by detection logic as a Risk Priority Number. The output here is normalized for comparison but the ranking principle is identical.
How do I lower an inspection bottleneck risk score? Improve detectability with better vision, lighting, or sampling to lower the detection score, or reduce occurrence upstream. Cutting detection from 3 to 1 roughly cuts the risk contribution from that factor by two-thirds.

Last reviewed 2026-05-12.