OPL (one-point lesson)
A one-point lesson (OPL) is a single-page, mostly visual teaching aid that covers exactly one thing — one machine point, one procedure, one abnormality or one improvement — written by the person who learned it and taught in five to ten minutes, usually at the machine or at shift handover. It is a standard tool of Total Productive Maintenance and the autonomous-maintenance pillar in particular.
The constraint is the whole method: one page, one point, one reader’s attention for ten minutes.
Most programmes recognise three types: basic knowledge (something everyone should already know), problem case (a failure that happened and what to do about it), and improvement case (a change that was made and why). The improvement case is the type most programmes skip and the one with the longest half-life.
Mostly pictures, for three reasons: a photograph of the actual point removes the interpretation step; good-and-bad side by side is the fastest way to teach a judgement; and it survives a language mix on the floor.
It is written by the operator or technician who learned the thing — not a training department. Writing it is most of the learning, and authorship is what makes it credible on the floor.
How MYREX holds one-point lesson content: the natural home for a one-point lesson is the spot on the machine it is about. In MYREX, photos, video and notes are pinned to marks on a high-definition 3D capture of the actual equipment, so the correct/incorrect photographs of a point sit on that point. There is no dedicated OPL object type, no training-records tracking, and no template is offered or implied.
Sources and notes
Total Productive Maintenance (TPM) and autonomous-maintenance practice. Operational vocabulary, not a regulatory citation.
Want the full picture?
Read the canonical definition of a Spatial CMMS, or book a demo to see it on your own machine.