Which implemention approach is usually the most expensive and least risky?
A) Direct Cutover
B) Parallel
C) Phased
D) All of these
E) None of these

Question

Quizplus · Accepted Answer

Parallel implementation is usually the most expensive because it involves running both the old and new systems simultaneously for a period of time, which requires additional resources. However, it is considered the least risky because it allows for comparison and fallback if the new system fails.

Which Implemention Approach Is Usually the Most Expensive and Least