System Conversion Methods

“Conversion is the process of changing from the old system to the new one”

There are four methods of handling a system conversion.

1. Parallel System:

- Both system runs in parallel.

Advantage :
- Safest conversion approach.

Disadvantage :
- System costs double

2. Direct Cutover:

- converts from the old system to the new system abruptly. (1-2 days)

Disadvantage :
- No other system to fall back on.
- Wise and careful planning is required.

3. Pilot Approach:

- When new systems also involve new techniques or drastic changes in
organization performance.
- System is implemented in one part or one department of the organization.
- When system is deemed complete, it is installed throughout the organization,
either using Direct Cutover Method or Phase-In Method.

Advantages:
- Providing a sound proving ground before full implementation.

4. Phase-In Method:

- Used when that is not possible to install a new system throughout an organization.
- Implementation period of time ranging from weeks to month.
- It allows some users to take advantages of the new system early.