The ESCAPE-2 project will organise a workshop on VVUQ from 23rd to 24th of April in France. This workshop will serve as a basis for the definition of a common VVUQ (Verification Validation and Uncertainty Quantification) framework as to be applied in Numerical Weather Prediction. Both URANIE and NWP communities need to agree on a common language and framework to be able to apply VVUQ analysis on the various dwarfs and codes at hand in the ESCAPE-2 project. It is part of the deliverables of WP4.