This research area explores the overall process of information retrieval and fundamental aspects of knowledge organization in the context of educational media research. The existing data inventories held by the GEI and its partners are analysed, integrated using standardised interfaces and published according to FAIR principles (findable, accessible, interoperable, reusable). The data is then openly accessible, which enables interoperability between collections and systems and means it can be linked to other data inventories. The research team also evaluates the suitability of open source tools to process this data and adapt them if necessary. In addition, they develop new concepts to improve the accessibility to researchers of data inventories held by the GEI and its partners.