{HEAD ~ The times} and {TAIL ~ the type} of event registered are then computed by a method, known as the discrete event modelling and simulation, to establish customer traffic monitoring and forecasting 
{ HEAD ~ The times } and { TAIL ~ the type } of event registered are then computed by a method , known as the discrete event modelling and simulation , to establish customer traffic monitoring and forecasting
HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL 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