What implementation strategy would you use and why you believe this is the best option for the business.

What implementation strategy would you use and why you believe this is the best option for the business.

choose from 4 approaches for converting from the old system to the new one

direct- changeover old system replaced with new

parallel- operation old and new run side by side

phased changeover implemented in stages

distributed changeover new system piloted by some users eg branch office