The aim of this work is to propose a methodology for the assessment and continuous improvement of sustainability, by combining the tools Sustainability Barometer, Analytic Hierarchy Process (AHP) and 5W2H. The central problem is the lack of a methodology to help assess the level of sustainability, prioritize the items assessed and formulate an action plan to help raise the level of sustainability in a given region. The relevance of the study lies in providing the possibility of using a tool aimed at the assessment and continuous improvement of sustainability and in highlighting the possibility of benefits for end users and society, translated into greater efficiency in decision-making.