The gesture has to be exact and the protocol traceable. And every regulatory update has to reach everyone, at once, with no stale version left in circulation.

A written protocol gives the sequence and the thresholds. It does not give the technique: the angle of the sample, the way to hold the pipette, the sign that tells you to start over. That level is passed on in pairs, at the bench, and it is lost at exactly the rate people leave.
A path per protocol, with the assessment and the completion attestation that show the technique was seen and understood.
The protocol written step by step, dated, with a record of who consulted it and when.
A regulatory update that forces retraining, with no record of what was demonstrated the time before
Variation between operators on the same protocol, visible only at quality control
Long shadowing time, taken from the people who are already in most demand
A written procedure proves it exists. A procedure that is filmed, dated and tracked to completion proves it is being followed.
A rule that changes has to reach everyone at once, with a record of who saw it and when.
A retirement can be seen coming. The six months before it are the right moment to capture what only that person knows how to do.
By re-recording the part that changes. The module and the procedure are both produced from the recording, so the update happens in one place, and the audit log keeps a trace of the previous version.
In the European Union, with AI processing in France. Your data is never used to train our models: that is a contractual commitment, not an intention. The detailed measures are on the security page.
Yes: four role levels, and isolation by organisation enforced on every table. Every access change is written to the audit log.