The task enqueue operation includes adding {TAIL ~ the received task} to an associated queue of the scheduling hierarchy, where the queue is associated with {HEAD ~ a data flow} of the received task 
The task enqueue operation includes adding { TAIL ~ the received task } to an associated queue of the scheduling hierarchy , where the queue is associated with { HEAD ~ a data flow } of the received task
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH