That's pretty much exactly what it means in software too? A trivial task is one that you think you know how to do. A nontrivial problem is one which sounds like

That's pretty much exactly what it means in software too? A trivial task is one that you think you know how to do. A nontrivial problem is one which sounds like it should be doable, but you don't immediately know what steps will be required, and until you look into it further it may take anywhere from days to decades.