> What value would that provide (than make-work for a couple of software engineers)? In the lingo, business continuity and risk management. When, not if but wh

> What value would that provide (than make-work for a couple of software engineers)? In the lingo, business continuity and risk management. When, not if but when, the current system fails, there is high chance of it being unrecoverable. Even if it were technically recoverable, can they find someone to do that work? How long will the factory stand still while the system is being recovered or replaced? In general it is more cost-effective to replace things before they fail rather than after the fact. Doubly so in these sort of cases where using the old system (in working state!) as a reference would most likely be beneficial.