A current IT architecture is more than simply the hardware and systems themselves. It includes the in-head knowledge and experience of our DIT people too. DIT can only be expected to be trained in current apps, we cannot really expect them to be trained in 30 year old apps, any more than we would expect to keep 30 year old hardware. So this is a disadvantage of emulation: no organisation IT support.

(Later) A problem for individual organizations perhaps, but not for a digital repository?

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