Question: Old system New system DIRECT CUTOVER Old system New system PARALLEL OPERATION Old system New system PILOT OPERATION Old system New system PHASED OPERATION As
Old system New system DIRECT CUTOVER Old system New system PARALLEL OPERATION Old system New system PILOT OPERATION Old system New system PHASED OPERATION As the accompanying figure illustrates, the changeover method requires that both the old and the new information systems operate fully for a specific period. O phased operation O parallel operation pilot operation
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