There is a quick way to tell whether a virtual reality simulator makes sense for a particular course: ask what happens when the trainee gets it wrong. If the answer is “nothing”, you probably don’t need one. If it is “a production line stops”, “something expensive breaks” or “somebody gets hurt”, there is a case.
What a simulator actually solves
It does not solve “making the training feel modern”. It solves something specific: repeating a procedure as many times as needed, without consequences and without tying up the real thing. The value is not in the headset, it is in the repetition. An operator who has performed a critical manoeuvre twenty times in simulation arrives at the real one with a memory of the sequence that no manual can give.
The four cases where it pays off
- The mistake is expensive or dangerous. Work at height, confined spaces, heavy machinery, clinical procedures. Rehearsing the failure is precisely what you cannot do for real.
- The real thing is occupied, or doesn’t exist yet. Training a team on a facility still under construction, or on a machine that is in production and cannot be stopped.
- A lot of people have to be trained, in different places. The cost of building the simulator gets spread out. The cost of flying a hundred people to one centre does not.
- You want to measure, not just teach. A simulated environment records what each person did, in what order and how long it took. That turns training into data.
The three cases where it doesn’t
Saying this works against our immediate interest, but a project that should never have existed ends badly for everyone:
- When the content changes every quarter. A simulator carries an update cost. If the procedure is constantly rewritten, a good video or a well-written manual ages better.
- When what has to be learned is theory. Regulations, concepts, decision criteria: those are learned by reading and arguing, not by putting on a headset.
- When there is nobody to run it. A simulator needs hardware, somewhere to use it and someone to maintain it. Without that it ends up in a cupboard, and we have seen it happen.
What you need to build one
Less than people assume, as long as one thing exists: the written procedure. If the process to be trained is documented step by step, half the design work is already done. If it is not, the first thing to build is not a simulator — it is the document.
After that, existing material matters. Drawings, 3D models of the equipment, photographs of the facility: anything that already exists shortens the modelling and lowers the cost. And the target device has to be decided early, because an environment for headsets does not cost the same as a browser-based walkthrough. We go into it in virtual reality and in the training section.
Health and psychology deserve a separate mention, because there a controlled environment also serves therapeutic exposure and rehabilitation: a different use, with different demands, covered in health and psychology.
If you are weighing one up, tell us which procedure you want to train and for how many people. That is enough to say whether it is worth it.