Lean manufacturing · Kaizen
The PDCA cycle: the order behind Kaizen
Plan, do, check, act. Where each step of the cycle sits in an improvement record.
13 October 2026 · 1 min
How to write a One Point Lesson (OPL)
One topic, one page, plenty of visuals. The pattern for passing on knowledge in five minutes on the floor, and tracking who read it.
12 October 2026 · 1 min read
A One Point Lesson explains a single piece of knowledge (a setting, a check, a defect type) on one page, mostly with visuals. It is read in five minutes at the start of a shift.
A good OPL
- One topic: two topics means two lessons.
- Visual first: right and wrong side by side.
- Short sentences: an explanation, not an order.
- Author and approver are named.
Reading and checking
An OPL is prepared as a record type and, once approved, reading tasks go to the relevant units. A short quiz of a few questions can be added; who has read it and who hasn't is listed. The lesson can also be printed as a branded PDF.
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Hoshin Kanri and the X-matrix: bringing strategy to the floor
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