What defines a legacy system?

A legacy system is defined as an outdated computer system or application that continues to be used because it still fulfills the needs of the organization despite its age. These systems often lack the latest technology and may face challenges such as increased maintenance costs, compatibility issues with modern software and hardware, and potential security vulnerabilities. Organizations might retain these systems due to the complexity and cost involved in replacing or upgrading them, as well as the risk of data loss or disruption of services associated with switching to newer systems.

Legacy systems often present challenges in terms of integrating with new technologies while also supporting older business processes that were designed around them. As technology continues to evolve rapidly, the definition of a legacy system is continuously reconsidered, making it crucial to stay updated on technological advancements.