Susan Has Decided on a Conversion Strategy to the New

Multiple Choice

Susan has decided on a conversion strategy to the new system.In this strategy,both the old system and its potential replacement are run together for a time until everyone is assured that the new one functions correctly.This is the safest conversion approach because,in the event of errors or processing disruptions,the old system can still be used as a backup.However,this approach is very expensive,and additional staff or resources may be required to run the extra system.Which conversion strategy are they employing?

A) phased approach strategy
B) pilot study strategy
C) direct cutover strategy
D) parallel strategy