Thomas,
>>And keep in mind that you are on the bright side of life. It is a tiny problem to change several thousend lines of code.
>>
>>Car makers do the same same thing. But they do it in steel. Belive me, that hurts more. They have no undo and no version control ...
>>The accuracy as mentioned below is made out of human bones.
>
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>I work for Toyota/General Motors. We do have version control but what hurts is is recalls! :) Do it right the first time! Like you said, when you do it in steel (and plastic) the impact (pun) is different. :)
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What I mean is we can use version control to go backwards with our code. Cut it pasted it and trow the unuseable ideas. Or make lava-code out of them.
If the machines that build the cars are (re)mounted there is no easy way back. I trust that carmakers have some sort of planing mechanism what ever they do. But you must see that on the level of ercetors. We do robot programming. On this level is nothing left expected output (in cars/h) and the deadline ...

Agnes