Legacy System

AvenDATA - IT Applications Decommissioning | Application Retirement

Legacy System Definition:

A legacy system, in the realm of information technology (IT), refers to any outdated, often obsolete, or aging software or hardware infrastructure that is still in use within an organization due to its critical role in supporting various business processes. These systems have typically been in place for many years and were often developed using outdated technologies and methodologies. Legacy systems can pose challenges for organizations in terms of maintenance, scalability, and integration with modern technologies.

Source:

https://avendata.com/blog/legacy-systems