This is the deck from my talk at SEMANTiCS 2021 in Amsterdam, within the Workshop on Rethinking Asset Information Management. --- The European Interoperability Framework (EIF) identifies four levels of interoperability, two of which are semantic and technical interoperability. Technical interoperability in the context of EIF is that between digital services. In the transport domain, however, the main need is for technical interoperability between physical assets. And it is crucial for safety. The role of semantic interoperability is also somewhat different. It doesn't enter as an upper layer but as enabler. The first Linked Data pilot at the EU Agency for Railways addressed a problem of interoperability between physical assets – track and trains – by increasing the interoperability of their datasets. And while many Linked Data projects focus on the backend and publication, this one delivered a full-stack solution in a very short time that convinced the board to adopt Linked Data as the default paradigm for data management.