There are also ELNs with specialised functionality and a data structure well adapted to each respective discipline. The standards and processes prescribed by these discipline-specific ELNs can effectively accelerate scientific work, increasing the acceptance of user scientists. They can also ensure FAIR (Findable, Accessible, Interoperable, Reusable) data storage to ensure the direct and long-term reusability of these data and comparability with other sources. Selecting the appropriate ELN software is not trivial, in particular as ELNs are often established by the respective research institutions that have to address the needs of significantly different disciplines and interdisciplinary work. Providing added value to such interdisciplinary work and the support of different disciplines can only be achieved through a combination of ELNs which then raises the question of interoperability between ELNs immediately. Obviously, interoperability software solutions need to ensure data transfer from one ELN environment to another with minimal loss.