Definition: Re-derivation is a process where a codebase is rewritten in a way that makes it more efficient, readable, and maintainable. It involves identifying and fixing issues with existing code, replacing parts of the code to make it easier to understand, modify or extend, and then testing the new codebase thoroughly to ensure it meets the desired requirements. Re-derivation can be used for various purposes such as: 1. Improving performance: Re-deriving code can help in optimizing its