During April 2025, David Dureau developed a Variable Difference Normalization feature for the arcaneframework/framework repository, focusing on improving the robustness of variable comparison logic. He designed and implemented a normalization algorithm using the normeMax criterion, which computes a global maximum norm before applying normalized error calculations to variable comparisons. This approach enhanced the reliability of test results and laid the foundation for broader normalization-based checks across modules. David’s work involved extensive code refactoring in C++, applying numerical analysis techniques and adhering to disciplined Git workflows, resulting in more maintainable verification processes and improved readiness for future cross-variable validation.