Notes from the floor

When something goes wrong, the fastest explanation is that a person made a mistake. Write down operator error, add retraining and a reminder to be careful, close the action. It feels like an answer. It is one of the most expensive habits in manufacturing.

Six Sigma has a real toolkit and a real track record. The problem is that a large share of the projects run under its banner wrapped a simple problem in a heavy process and reached an answer a competent person could have found in an afternoon.

Boards on the wall, a suggestion system, kaizen events on the calendar, a slide counting projects completed. Far fewer programs actually move the numbers the business cares about year over year. Most of it is improvement theater, and everyone can feel the difference.

The dashboard is open, the metrics are reviewed, the actions are assigned, and the people in the room may go weeks without setting foot on the floor. It feels efficient. It is one of the quieter ways a quality function loses touch with reality.

A quiet quarter feels like a good one. No angry calls, no returns, no escalations. The absence of complaints gets read as evidence that quality is fine. It is one of the most dangerous inferences in the business.

Adding inspectors feels like doing something about quality. It rarely is. Inspection sorts good from bad after the fact. It does nothing to the process that made the bad parts in the first place.

Zero defects makes a great banner and a poor strategy. Chasing the slogan drives the wrong behavior. What you actually want is a capable process, and that is a different target entirely.

A clean audit and a healthy quality system are not the same thing. One measures whether you follow your procedures. The other is whether your procedures actually prevent problems. Plenty of certified plants have a spotless certificate and recurring escapes.

PPM is the headline quality metric in most plants. It is also one of the easiest to game and the easiest to misread. A falling PPM can hide a rising problem, and a single number was never going to tell you where your quality actually stands.

When prevention works, nothing happens. No defect, no complaint, no fire to put out. That invisibility is exactly why prevention is the first thing questioned in a budget review, and why so many plants stay stuck firefighting.

When a process misbehaves, the instinct is to change one setting at a time. It feels scientific. It is slow, and it misses the answer, because the real cause usually hides in the interactions that one-at-a-time testing cannot see.

Every dimension measures in tolerance, the report is all green, and the parts still will not assemble. The culprit is usually not the gauge. It is a drawing that measured the wrong thing.

Most quality problems are born months before production, in the gap between designing a product and figuring out how to make it. APQP is the discipline built to close that gap on purpose, before a customer sees a defect.

Most manufacturers run a supplier scorecard. Far fewer have one that changes how suppliers behave, which is the only reason to have one. The difference is what you measure, how you share it, and what happens when the number is bad.

Calibration is the least glamorous system in quality and one of the most important. Every measurement is a comparison against a standard, and calibration is what keeps that standard honest.

Today the United States turns two hundred and fifty. I came here at sixteen with no English. A career in quality, two degrees earned later in life, and a firm I founded all trace back to a bet this country makes on people it has never met.

Sensors on every machine and AI on every image. Some of it is real and useful. Some of it is a faster way to make the same defects. The difference is whether the process underneath is capable.

Most manufacturers already pay for Microsoft 365. Far fewer use it to run quality. Here is how Planner, Power Automate, Power Apps, and Power BI fit, and where the new AI features need a firm hand.

Every capability study, control chart, and pass-or-fail decision rests on one assumption: that the measurement is real. A measurement system analysis checks whether it is.

Inspection asks people to catch every error. Mistake-proofing changes the process so the error cannot happen, or cannot pass unnoticed. Only one of those actually holds.

I spent time on the floor at Automate 2026 in Chicago as a quality engineer, not a robotics buyer. That lens changes what stands out, and what to be careful about.

The control plan is the one document that says, for every characteristic that matters, how you keep the process good and what you do the moment it goes wrong. Most are written to satisfy an auditor. That is a waste.

A layered process audit checks the actual process, often, by many people, at the point where the work is done. It catches drift before it becomes scrap, and it is underused outside automotive.

A process FMEA is supposed to stop failures before they reach a customer. Too often it becomes a form filled in after the line is already running. Here is how to keep it a real prevention tool.

The two indices look almost identical and get confused constantly. The gap between them is trying to tell you something about your process.

OEE turns three kinds of loss into one number. The number is useful. The benchmark behind it gets quoted with far too much confidence.

Most plants track the scrap they can see. The larger cost hides in rework, sorting, and the failures that reach the customer.

A problem gets closed, then comes back two months later. Usually the team fixed the symptom and missed one of the two root causes.

Lean Six Sigma works when it solves a real problem on your floor, not when it becomes a belt-collecting exercise. Here is how to tell the difference.

IATF 16949 is ISO 9001 plus a demanding layer of automotive rules. Here is the realistic path, and the parts that trip suppliers up.

A quality management system fails when it becomes a binder no one opens. Here is how to build one that runs the way your plant actually works.

Most supplier defects are planned in, not made in. PPAP and APQP exist to catch them before the first production run, if you use them honestly.

A quality dashboard is not about prettier charts. It is about seeing a problem early enough to act. Here is what actually belongs on one.

SPC is not more inspection. It is how you separate normal variation from a real signal, so you act when it matters and leave a stable process alone.

The honest ranges for a small-to-mid manufacturer, what really drives the number, and why the certificate fee is the smallest part of the bill.

Certification day gets the attention. The audit a year later is the one that catches teams off guard. Here is why, from a lead auditor's chair.

Two industries, two languages for proving a part is right the first time. The plain-English difference, and when each one applies.

"Gap assessment" sounds vague. Here is exactly what you get, why it matters before an audit, and how to tell a useful one from a box-checking exercise.

A recurring defect usually does not mean the corrective action failed. It means it solved the wrong problem. Here is how to tell the difference.