Make everything as simple as possible but not simpler.
(attributed to Albert Einstein)
Industrial physics is not a branch of physics, generally it means solving of practical real life problems by person, trained as physicist. Contrary to what I call “inventor’s approach”:try this, try that, keep trying until you get something working;
or engineer’s approach: this is a problem of such-and-such type hence use this-and_that method – industrial physics is based on understanding of the problem.
I am physicist by training, trade, and style of thinking … so understanding for me is building of proper physical model,not too general and not oversimplified and making mathematical description of it. Then comes algorithm design and implementation, running simulations, analysis.