How the Production Record Shortens a Quality Investigation

A quality investigation is mostly reconstruction, and the production record removes it: when each operation already carries its machine, its dates, its logged hours, its operator, and its scrap counts with reasons, the team starts at analysis instead of spending two days establishing what happened. EDGEBIC by User Solutions captures those facts as a byproduct of scheduling and shop floor logging, not as a separate quality exercise. The outcome shows up in two numbers: investigation hours, and how many units you have to hold.

This post covers the investigation outcome. It sits under the EDGEBIC results guide. For the generic corrective action process, see CAPA in manufacturing.

The First Two Days Are Not Analysis

Watch a nonconformance investigation start. The defect is described, the part number is known, and then the team spends the first phase answering questions that are not really quality questions at all:

• When did these parts run?
• Which machine ran the operation we suspect?
• Who was on that station?
• Did anything about the process change in that period?
• How much scrap was recorded around then, and for what reason?

None of that is judgment. All of it is retrieval, and in a shop where retrieval means travelers, a shift log, and a maintenance calendar in three different places, it burns the first two days of a five-day investigation.

The team then does the actual analysis with a partially reconstructed timeline, which is how investigations end with a probable cause rather than a cause.

What the Record Already Knows

Every one of those questions has an answer sitting in the plan and the actuals, because the scheduler needed the same facts to build the schedule in the first place.

That last one matters more than it looks. Having a single report that gathers everything that ever happened to one job removes the part of an investigation where someone has to know which system to open next.

Scrap Reasons Are Not Optional

The kiosk asks for a reason at specific moments and never casually:

The scrap case carries an extra guarantee: the count and its cause are written together in one operation, so a scrap event with no cause cannot exist. That is what makes a Pareto of causes trustworthy rather than mostly trustworthy. Sixteen default codes ship across four categories, Machine, Material, Quality, and Waiting, and you can add codes scoped to a single work center so the paint booth list mentions color changes and the heat treat list does not. See building a reason code catalog for the design of that list.

Where the Money Is: Containment Scope

Investigation hours are the visible saving. Containment is the larger one.

A defect with no timeline forces a wide hold. You quarantine by part number across the period you cannot rule out, which is usually a quarter, because ruling out is exactly what you cannot do. A defect with a timeline forces a narrow hold.

Every one of those rows costs money, and the last one costs the most, because finished goods held unnecessarily are cash you cannot ship and a customer conversation you did not have to have. See the cost of quality for the standard framing of those buckets.

A Worked Sequence

A returned assembly shows a bore out of tolerance. The investigation runs like this:

1. Identify the jobs. The shipment maps to four jobs.
2. Open the operations. All four ran the bore operation, three on MILL-2 and one on MILL-1.
3. Check the moves. Resource Replacement Audit shows the fourth job was rerouted from MILL-2 to MILL-1 on a busy day.
4. Check the window. The three MILL-2 jobs ran across four days in the same two weeks.
5. Check the process. The routing copies show all four scheduled against the same routing version, so a revision is ruled out.
6. Check the shift. Shift Production shows all three MILL-2 runs on nights, with the same operator count.
7. Check the scrap. Piece counts around that window carry Quality reasons on MILL-2 and none on MILL-1.

The suspect population is now three jobs on one machine on one shift over four days, and the analysis can start on the machine rather than on the calendar. Step 1 through step 7 is an afternoon.

What the Record Cannot Do

It cannot tell you the cause. It tells you where and when, cleanly. Why the bore drifted is still metrology, engineering, and judgment. Removing the reconstruction phase makes the judgment phase start earlier; it does not make it unnecessary.

It is only as good as the logging habit. Operations logged in a batch at the end of the week carry end-of-week timestamps, and a timeline built on those is not a timeline. This is the single largest failure mode, and it is a habit problem rather than a software one. See EDGEBIC actuals tracking explained.

It does not track material lots by itself. The record covers the plan, the machines, the people, and the counts. If your investigation turns on which heat of steel was used, that lives in your inventory and receiving records, and this data sits beside it.

It does not make you compliant with any standard. No software does. These are planning and execution records with defined behavior, usable as inputs to a quality system that you own. See audit-ready scheduling.

It cannot see work that was never scheduled. A job run outside the plan leaves nothing to read. That is one more reason to keep one plan rather than several, and it is the same argument as how one plan aligns sales and production promises.

Want to see what your own floor would have on record? Bring a job history to a demo and we will walk an investigation through the reports in front of you.