Multicriteria assessment of agrifood systems is essential to improve sustainability of food value chains. To perform such assessment, collection and management of data on the whole range of agrifood system activities are of primary importance. There is a real need of tools to structure, store and share data related to the transformation of agricultural products into food, domain currently poorly documented. With this purpose, three different and complementary approaches have been developed by the largest research institute in agriculture, food and environment: MEANS platform, which provides tools and database for Life Cycle Assessment practitioners; BaGaTel database, structured by PO² ontology, which contains data about transformation processes and food products; @Web, which is a web application which allows the management of data tables using semantic web languages. The aim of DataSusFood project is to develop an interoperable system taking advantage of these different approaches to deliver open access data in accordance with FAIR principles. Developments of adequate software, modules, scripts for interoperability (WP1), data entry (WP2) and data accessibility (WP3) will be performed in close collaboration between computer scientists and users. Three use cases will support the project: production of cheese, industrial dairy protein powders and food packaging. Tools and open access data delivered by DataSusFood project will be highly valuable for scientists, technical institutes, industries and governmental agencies dealing with open access data issues and/or sustainability goals related to agrifood systems.