How do you calculate mission-critical quality cost?

Multiply quality events by cost per event and the program-exposure share, then add fixed containment and MRB cost. With 100 events at $45, 80% exposure, plus $250 fixed, the total is $3,850.

What does program exposure included mean?

It is the share of quality events that actually reach billable, mission-affecting consequence on this contract. At 80%, you assume 20% are caught or absorbed without flowing to program cost.

What is a good cost of poor quality for defense electronics?

World-class COPQ runs a few percent of program value, but mission-critical hardware often carries higher COPQ because containment, MRB, and retest are mandatory. Trend it down release over release rather than chasing a fixed target.

Why separate fixed containment and MRB cost?

MRB disposition, containment, and documentation overhead are incurred per disposition cycle regardless of how many assemblies are affected, so they belong outside the per-event variable cost.

Cost per event vs cost per affected assembly — which do I enter?

Use whichever your event count is denominated in and keep them consistent. If you count affected assemblies, enter cost per assembly; the calculator's per-event figure here is $38.50 across 100 events.

Does this capture field failures and warranty exposure?

Only if you fold those costs into cost per event. The default model is factory-and-containment focused; fielded-system failure cost is far larger and should be modeled with its own, higher per-event value.

Defense Electronics & Ruggedized Systems calculator

Mission-Critical Quality Cost Calculator

Mission-Critical Quality Cost totals the financial exposure from quality escapes on defense and ruggedized electronics, where a single nonconforming assembly can trigger Material Review Board action, containment, and contractual penalties. Quality managers and program leads use it to quantify cost of poor quality (COPQ), justify corrective-action spend, and size reserves before a milestone review. Unlike commercial scrap accounting, it applies a program-exposure factor because only a fraction of events typically reach billable, mission-affecting consequence on a given contract. The fixed containment and MRB cost line captures the overhead that hits regardless of event count, so the number reflects what the program actually pays.

What this calculator does

Estimate quality cost tied to defense electronics inspection, failure containment, MRB, rework, retest, scrap, and customer escapes.
Use it when mission-critical quality cost in defense electronics and ruggedized systems is being put through a defense electronics and ruggedized systems weighted-cost review.
It multiplies quality events by cost per event and a program-exposure share to get variable quality cost, then adds fixed containment and MRB cost for a total mission-critical quality cost.

Formula used

Exposed quality event cost = quality events or affected assemblies × cost per quality event × program exposure included
Total mission-critical quality cost = exposed quality event cost + fixed containment and MRB cost

Inputs explained

Quality events or affected assemblies:
Cost per quality event:
Program exposure included:
Fixed containment and MRB cost:

How to use the result

Use it when building a cost-of-poor-quality case, sizing quality reserves, or prioritizing corrective actions on a defense electronics program.
Averaging cost per event hides catastrophic tail events — one field failure on a fielded weapon system can dwarf the modeled average — so treat the output as a planning baseline, not a worst case.

Current U.S. benchmarks

The producer price index for copper and brass mill shapes stands at 559.593 (BLS, May 2026), up 76.8% from a year earlier. Quotes priced off last quarter's material cost miss this move. Global copper trades at $13,484 per tonne (IMF via FRED, May 2026).
The U.S. has 11,261 computer and electronic products establishments employing about 815,443 workers (Census County Business Patterns, 2023).

Common questions

How do you calculate mission-critical quality cost? Multiply quality events by cost per event and the program-exposure share, then add fixed containment and MRB cost. With 100 events at $45, 80% exposure, plus $250 fixed, the total is $3,850.
What does program exposure included mean? It is the share of quality events that actually reach billable, mission-affecting consequence on this contract. At 80%, you assume 20% are caught or absorbed without flowing to program cost.
What is a good cost of poor quality for defense electronics? World-class COPQ runs a few percent of program value, but mission-critical hardware often carries higher COPQ because containment, MRB, and retest are mandatory. Trend it down release over release rather than chasing a fixed target.
Why separate fixed containment and MRB cost? MRB disposition, containment, and documentation overhead are incurred per disposition cycle regardless of how many assemblies are affected, so they belong outside the per-event variable cost.
Cost per event vs cost per affected assembly — which do I enter? Use whichever your event count is denominated in and keep them consistent. If you count affected assemblies, enter cost per assembly; the calculator's per-event figure here is $38.50 across 100 events.

Last reviewed 2026-05-12.