The emergence of the VDV core application
A solution was sought to ensure interoperability within each individual transport association, as well as between different transport associations or between means of transport of different transport companies. Without prescribing uniform fares or a uniform system for all.
Passengers should be able to use public transport throughout Germany with a single application initialized for public transport on a mobile carrier medium (e.g. a chip card).
Hence the name: VDV core application.
In 2002, 14 transport companies and associations set up their own research project called "Interoperable VDV Core Application", which was funded by the Federal Ministry of Education and Research. Project partners were the Rhein-Main Verkehrsverbund, the Verkehrsverbund Oberelbe, the Fraunhofer Institute for Transportation and Infrastructure Systems IVI and the VDV-Förderkreis e. V..
Also involved were partners from industry such as Cubic Deutschland, Infineon, Siemens, T-Systems and TEWET. The research project simultaneously provided the basis for certification of the components used in core application systems.