FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -There are three main methods used: phased implementation, direct changeover and parallel running. Phased implementation: A staged method whereby one part of the overall system that needs changing is changed. If any problems arise, they are limited in scope and therefore non-critical.

Detailed explanation-2: -The Implementation Methodology is broken into five stages: Prepare, Plan, Design, Validate, and Deploy. Each stage includes a series of segments that are filled with a set of inputs, tools, techniques, and deliverables all building upon one another to move to the next stage.

Detailed explanation-3: -Question: What is the difference between the pilot implementation methodology and the parallel implementation methodology? Pilot methodology implements new software for just a subset of employees while the parallel implementation methodology uses both the old and the new applications at the same time.