Thats what it sounds like to me - a photo production line. All settings remain constant once the initial setup is done. Kid comes in, snap, assign barcode for reference, NEXT!, kid comes in, snap, assign barcode for reference, NEXT!.......
You could snap all day, taking breaks in between, photographics hundreds of students, safe in the knowledge that each exposure will be identical to the last with all images stored and barcoded.
I think.