Inspection quality starts with data, not with the model. In Trainer you collect and annotate OK and NOK images, build a representative training set and an independent test set the model has never trained on.
Trainer lets you train several model iterations and compare them side by side on the same test data — instead of relying on a single, unverified version. Only once an iteration meets the agreed acceptance criteria can it move on to Server as an approved package.
This component is used by an engineer or integrator, not by a line operator — it runs on an engineering workstation, outside the rhythm of production, so experiments and comparisons don't affect the ongoing inspection.