The project aims to define an advanced theoretical methodological and application framework capable of supporting the long-term strategic decisions of the ports to effectively implement the concept of multi-capital sustainability. For this purpose GREENVALUES integrates and combines different methodological approaches such as conceptual modeling, data collection, managerial practices for multi-capital Management Practices, Life Cycle Assessment and Simulation with the need to provide a tool concrete and tangible (which will be, at the end of the project, the prototype of the GREENVALUES system) that can be easily integrated into the management processes of port systems in order to support and promote the concept of sustainable development in its multiple forms.