The calculated scenarios may be generated by {HEAD ~ various engines} within {TAIL ~ the analysis system}, which may include a requirement engine, supply environment engine, inventory related costs processor, and shortage costs processor 
The calculated scenarios may be generated by { HEAD ~ various engines } within { TAIL ~ the analysis system } , which may include a requirement engine , supply environment engine , inventory related costs processor , and shortage costs processor
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL 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