Let's say software is "data -> code -> UI".
The two most important things are data and UI, the one thing we developers spend all of our time thinking and talking about is code :)
The two most important things are data and UI, the one thing we developers spend all of our time thinking and talking about is code :)
Because data >>> UI >> code.
> Also, business logic is encapsulated in code - if that's borked, no amount of UI will save it.
The assumption here is that the bare minimums are fulfilled. If the software doesn't work at all you have none of the above.