The Integrative WEF Nexus Analytical Model / Tool computes quantitative relationships among WEF nexus sustainability indicators through a multi-criteria decision making (MCDM) approach. This innovative tool displays computation outputs in form of tables and spider graphs for easy assessment of the interactions and interrelations among resources while enabling decision makers to set priorities and make best intervention decisions. The tool explains and facilitates cross-sectoral resource planning, utilisation, management and decision-making for sustainable development.