According to the present invention, the sequential work operations of each group are monitored for compliance with {HEAD ~ a sequential pattern} for {TAIL ~ the group} having the same working pattern for each working cycle 
for
According to the present invention , the sequential work operations of each group are monitored for compliance with { HEAD ~ a sequential pattern } for { TAIL ~ the group } having the same working pattern for each working cycle
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH