Walk any well-run plant and you’ll find statistical process control doing quiet, faithful work: control charts on the critical dimensions; capability studies before a line change; gage R&R before anyone trusts a measurement; out-of-control signals investigated; root causes found; corrective actions closed. Quality professionals built this discipline over 70 years, and manufacturing is incalculably better for it.

Now walk 50 feet from the shop floor into the office where the orders, receipts, invoices, and credits are processed, and ask a simple question: Where are the control charts?

There are none. The transactional side of the same enterprise, the processes that turn shipped product into collected cash and received material into paid invoices, runs with less statistical oversight than a single CNC spindle. And here’s the uncomfortable part for those of us who came up through the quality profession: The transactional processes are producing defects at rates no production manager would survive, and nobody is charting them.

The defects nobody charts

Let me be concrete about what a transactional defect looks like, because it’s not a typo in a spreadsheet.

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