Final answer:
The four types of conversions in the context of system implementation are parallel, phased, pilot, and plunge conversions. These strategies differ in terms of how the new system is introduced and integrated within an organization to ensure minimal disruption and risk to ongoing operations.
Step-by-step explanation:
In the context of system implementation strategies within business or information technology, the four types of conversion strategies are:
- Parallel conversion: This is where the new system runs alongside the old one for a period of time.
- Phased conversion: The new system is implemented in stages or modules, with each phase going live when ready.
- Pilot conversion: A new system is first implemented in a small part of the organization to test its performance.
- Plunge conversion: This is a 'big bang' approach, where the old system is stopped and the new system is used immediately.
The integration, acceptance, performance, and unit are not recognized as types of system conversion strategies. When making changes to a business's IT systems, choosing the right type of conversion strategy is crucial to minimize risks and ensure a smooth transition.