there is a post in the "did you know this" forum topic 13283
in which the writer refers to a "shop only jump drive"

what is a shop only jump drive"

mention is also made of "ATC testing"

what is ATC testing?

best regards fred evans

Probably just a jump/flash/thumb drive dedicated to the shop for transferring files... and maybe running them.
ATC = Automatic Tool Changer

"to back up mach 3, I have clients take a memory stick, copy the install file, license file and XML to the memory stick.  Open the computer and tape the memory stick inside the computer.  So it cannot be used with something else. "

... if this is part of what you mean, it is a GOOD idea and is pretty well self explanatory.