The sequence of runs is altered at {HEAD ~ the production control workstation} based on one of the status of the runs, the status of the one or more glass processing machines, and the queue of insulating glass units at {TAIL ~ the glazing line} 
The sequence of runs is altered at { HEAD ~ the production control workstation } based on one of the status of the runs , the status of the one or more glass processing machines , and the queue of insulating glass units at { TAIL ~ the glazing line }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL