A user at {TAIL ~ the host computer} creates specifications for controlling the operation of the computers in {HEAD ~ the workgroup} 
A user at { TAIL ~ the host computer } creates specifications for controlling the operation of the computers in { HEAD ~ the workgroup }
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD