A short, opinionated guide for plant managers and ops directors. The math, the common ways each metric gets fudged in reporting, and a fill-in worksheet you can run in your next stand-up.
Or read the public essay version: The four numbers every plant should know cold — same content, web-only, no booking required.
No fluff intro chapter. No "history of manufacturing measurement." Straight to the formulas, the ways they get gamed in monthly reporting, and a fill-in sheet you can use this week.
Overall Equipment Effectiveness is the most-cited and most-fudged number in shop-floor reporting. The math is simple. The inputs are where the dishonesty lives.
First-pass yield captures something your scrap totals miss: the units that almost shipped before someone caught them. It's the single best leading indicator of whether your process is actually under control.
On-time-in-full is what your customer is actually scoring you on. The difference between "on-time" and "on-time-in-full" is where partial shipments quietly destroy customer relationships you thought were healthy.
Cost per good unit is the metric that exposes every "efficiency improvement" that didn't actually help. When OEE goes up but CPGU also goes up, something is wrong with the OEE number — not with your accounting.
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The guide is hand-delivered on a 30-minute discovery call. Book the call, we'll bring the PDF, and you'll get something more useful than an inbox attachment: a half hour with a manufacturing engineer who'll walk you through how the four metrics apply to your plant.
If it's a fit, we keep talking. If it isn't, you still walk away with the guide and the conversation. Either way, no nurture sequence and no follow-up sales tower.
30 minutes · With a real engineer · No deck, no pitch
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