What is the process of converting information from a legacy system to a new system called?

The process of converting information from a legacy system to a new system is referred to as conversion. This involves the necessary steps to ensure that data from the older system is appropriately transformed and transferred to the new system, preserving its integrity, format, and relevance.

Conversion encompasses various tasks, including data mapping, cleanup, and validation to adapt the old data structure to the specifications and framework of the new system. This process is crucial as it ensures that historical data remains accessible and usable in the new environment, which is often essential for ongoing operations, reporting, and compliance.

While migration indeed relates to moving data from one system to another, that primarily focuses on the act of transferring data rather than the specific process of transforming it. Integration refers to connecting different systems and ensuring they can work together seamlessly. Deployment pertains to the rollout and installation of new software or systems, which occurs after the conversion process is completed. Thus, conversion is the most accurate term for the process described in the question.