that's an inventory system for the u-pull-it... I think it would be useless to anyone other than if they call atwood/greeley/windsor (the 3 yards close to me) or one of the other yards owned by the same mega parent and asked "if atw002282 is still in the system" - wont tell you how much it has been picked or anything else, I take a pic in case I have a failure on something and know that truck had it, call and ask if it is still there before driving an hour out of my way just to go see.
Edit:I know the big parent company owns hundreds of smaller junkyards cause I looked it up once upon a time... right now all I can find is that Cheyenne WY is owned by the same group and has the same website layout to a tee.