I once saw an attempt at modernising a mainframe application that had a single input line where the user would type a sequence of numbers. The new GUI had all t

I once saw an attempt at modernising a mainframe application that had a single input line where the user would type a sequence of numbers. The new GUI had all the fields organised and labeled. The user then requested and got a single input box where he would type in all the numbers just the way he did before.