The order
The first question is whether the job can be finished without working at height. If not, collective protection is put in place — guardrails, platforms, scaffolds, covers. Only where collective protection is impossible does a personal fall arrest system come in. A plan that starts with a harness has skipped the order.
The anchor point
A personal system is only as strong as what it is attached to. The anchor point must be calculated, marked and inspected; a pipe, a handrail or a random structural member is not an anchor point.
Fall clearance
The system may arrest the fall, but if the person strikes the ground or an obstacle below, the outcome is unchanged. Lanyard length, shock absorber extension, the person's height and a safety margin are added to give the free height required.
Rescue
After a fall is arrested the person hangs. The rescue plan and equipment are ready before work starts.
In Optifora
The permit module opens a work-at-height permit with anchor point, fall clearance and rescue plan steps; where a step is missing, no permit is issued.