LIDO and CRMdig from a 3D Cultural Heritage Documentation Perspective

The most important characteristic of Digital Libraries is their flexibility in exposing content. Typically a DL provides a search interface which allows resources to be found. These resources can be local or remote, depending on how the data are organised within the DL and on how these data are made available for harvesting from/to other DLs. This kind of communication is possible because the structures of different DLs are expressed in formal specifications. In particular, especially in Cultural Heritage where we need to describe an extremely heterogeneous environment, some metadata standards are emerging and mappings are proposed to allow metadata exchange and enrichment. The CIDOC-CRM is an ontology designed to mediate contents in the area of tangible cultural heritage and it is ISO 21127 : 2006 standard. In particular an extension of the CIDOC-CRM, known as CRMdig, enables to document information about data provenance and digital objects in a very precise way. LIDO is a rich metadata schema suitable for handling museum-related data, still under development but very promising. In this paper we propose an update of the CIDOC-CRM to LIDO mapping and using a case study we will compare how CIDOC-CRMdig and LIDO handle the digital information of an object.