Both get imagined as something rare that happens in a studio or a laboratory, which conveniently rules out almost everyone.
In practice it looks like a folded strip of cardboard wedged under a machine so it will run until the part arrives on Tuesday. A route learned so well you know which junction to avoid at twenty to five.
Or a way of explaining the same thing differently for the third person who asked, because the first two explanations clearly had not worked.
That is problem-solving under real conditions with the resources actually to hand. It has never needed a certificate in order to be true of somebody.