CKAN (Comprehensive Knowledge Archive Network) is a web-based data catalog software used especially by public institutions for sharing "open data", which is further developed by the OKFN.

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We use CKAN in two projects:

The portal opendata.muenchen.de publishes the open data offered by the state capital of Munich and offers it in a wide variety of visualizations.

As part of the Connected Urban Twins project (CUT), Munich is developing the digital twin together with Hamburg and Leipzig. The development of the projects is user-oriented and modular. All project results are shared at an early stage and made available as "open source", as stipulated by the Regulations on Open Source for Model Projects Smart Cities of the Federal Ministry of Housing, Urban Development and Construction .