The Erlangen CRM / OWL got a new home! Use this website to access old versions and for legacy purposes only. All ongoing developments and documentations are now taking place at

Please visit our new website to access the most current version including a new namespace. Be sure to switch to the current version of the Erlangen CRM / OWL soon.


The Erlangen CRM / OWL is an OWL-DL 1.0 implementation of the CIDOC Conceptual Reference Model.

The Erlangen CRM / OWL has been originally created by Bernhard Schiemann, Martin Oischinger and Günther Görz at the Friedrich-Alexander-University of Erlangen-Nuremberg, Department of Computer Science, Chair of Computer Science 8 (Artificial Intelligence) and is currently developed in cooperation with the Department of Museum Informatics of the Germanisches Nationalmuseum Nuremberg and the Department of Biodiversity Informatics of the Zoologisches Forschungsmuseum Alexander Koenig Bonn.

The Erlangen CRM / OWL is an interpretation of the CIDOC CRM in a logical framework attempting to be as close as possible to the text of the specification. For information about the CIDOC CRM and related work please visit the corresponding CIDOC CRM website. The CRM is also available as ISO 21127.