The document outlines the agenda and key topics discussed during the Geotrends Seminar on Inspire Data Harmonisation, held on June 15, 2016, including the legal obligations and methodologies for ensuring interoperability of spatial datasets and services. It highlights the Inspire directive's objective to enhance public access to environmental spatial data across Europe, as well as technical methodologies for implementing the directive. Additionally, the document features case studies and practical demonstrations related to data harmonisation and interoperability best practices.