Given a continuous source of data relating to transactions, the transaction data may be segmented and processed in a data flow arrangement, optionally in parallel, and {HEAD ~ the data} may be processed without storing {TAIL ~ the data} in an intermediate database 
Given a continuous source of data relating to transactions , the transaction data may be segmented and processed in a data flow arrangement , optionally in parallel , and { HEAD ~ the data } may be processed without storing { TAIL ~ the data } in an intermediate database
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 OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH