Discuss the advantages and disadvantages of the three methods of converting to a new system: cold turkey cutover, phased cutover, and parallel operation cutover.
What will be an ideal response?
Cold turkey-This is the fastest, quickest and least expensive cutover method. It is also the most risky. If the system does not function properly, there is no backup system to rely on.
Phased cutover-The phased cutover avoids the risk of total system failure because the conversion occurs one module at a time. The disadvantage of this method is the potential incompatibilities between new modules that have been implemented and old modules that have not yet been phased out.
Parallel operation cutover-This is the most time consuming and costly of the three methods, but it also provides the greatest security. The old system is not terminated until the new system is tested for accuracy.
PTS: 1
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