i)Direct changeover:The old system ceases its operation and the new system commences operation the next day.
ii)Parallel changeover:This is a method where new and old systems are allowed to run side by side or simultaneously until it is proved beyond reasonable doubt that the new system is working and all the benefits are realized.
iii)Phased changeover:The method involves implementation of a system on step-by-step approach. This implies that only a portion of the system is implemented initially.
iv)Pilot changeover:It involves installation of new system but using it only in one part of the organization on an experimental basis.
Steve ju answered the question on October 10, 2018 at 18:21
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