The document discusses the Generic Methodology for Verification, Validation and Acceptance (GM-VV) which provides a standardized approach for assessing models, simulations and data. It aims to address limitations of current methods by being generic, supporting knowledge sharing and reusability. The GM-VV defines concepts like verification, validation and acceptance. It uses an argumentation framework and goal structures. A case study on traffic simulations demonstrated applying the GM-VV's processes and products. Future work includes developing tools and applying the GM-VV to additional case studies to improve and mature the methodology.