# Legacy system: what it is and how it works · Zorraquino
> A legacy system is an existing solution whose evolution or integration is limited by its technology, design or operational dependency.
URL: https://www.zorraquino.com/en/dictionary/internet/legacy-system.html

# Legacy system

A legacy system is an existing solution whose evolution or integration is limited by its technology, design or operational dependency

What it means, how it is used and where it comes up, with its related concepts.

[The whole glossary](https://www.zorraquino.com/en/dictionary)

## What it is and how it works

It may still be essential to the business. Modernising it requires understanding processes, data and risks before replacing it. Age alone does not mean it must be replaced immediately.

Topics

[Technology and data](https://www.zorraquino.com/en/dictionary/category/tecnologia-y-datos)

## Related concepts

- [Robotic process automation](https://www.zorraquino.com/en/dictionary/robotic-process-automation)
- [Algorithm](https://www.zorraquino.com/en/dictionary/internet/algorithm.html)
- [API](https://www.zorraquino.com/en/dictionary/internet/application-programming-interface.html)