Proof of concept
A “proof of concept” is a test of something with controlled inputs and known outputs.
It can be extended to a wider audience, where input and output are not always known but where you can test the transformation rules or the behavior of something (processes, equipments, software, etc.) within a real life scenario.
You'll need a set of parameters and a test strategy, including which people and what type of information will be used in the tests.
You'll also have to define what will happen in case the thing isn't approved: will it be erased? will it be destroyed? will you keep it in a shelf it return it to the seller?
Tests must be planned for both success and failure.