Cooperation with other projects is essential for the conception of VerbaAlpina. This is visible in the multiple cooperation agreements with project partners. VerbaAlpina makes a general distinction between three types of partners:

Data partners who have their own – mostly linguistic – data material, which can be adopted, in part or entirely, into VerbaAlpina’s data pool
Partners for the management of research data who operate infrastructures that facilitate the long-term preservation and retrievability of electronic data
Expert partners who possess conceptional and technological know-how regarding modern data processing (e.g., big data, artificial intelligence etc.)

The implementation, especially of data partnerships, is not always easy. It can be impeded by practical issues, mainly regarding information technology and problems with data protection that are related to it, but also a little bit by additional ideological reservations towards the focus on open source. Every cooperation with a data partner (PVA) is founded on a formal agreement which grants them an exclusively usable database for uploads. Every partner-database is available for download to each of the data partners. However, this cooperation is, of course, not supposed to be limited to data exchange. Rather, data partners are invited (and encouraged) to use the whole range of functions.
VA-data can be used by cooperation partners with a CC BY-SA licence in the latest applicable version available. The BY clause refers to the original data supplier whose VA-specific signature is part of the reference.