METS/MODS

Description of METS/MODS


The METS/MODS format is an XML format that combines two standards of the Library of Congress. Metadata Encoding & Transmission Standard (METS) is the container that holds one or more metadata sections and sections for the logical and physical structure relating to the images that constitute the digital object (e.g. book). Also a link structure between different digital objects may be included in the logical structure section. The metadata sections hold the bibliographic information using Metadata Object Description Schema (MODS). There may be also links between digital objects in the MODS section using the relatedItem[@type="host"] element.

The support of this combination of standards is precondition for a funding of a digitzation project by the German Research Foundation (DFG) and has been further defined for the use of the DFG-Viewer. The most german institutions use systems that may be harvested in METS/MODS via OAI-PMH. These systems include Visual Library, GOOBI and others.

Universitätsbibliothek Frankfurt a.M
The mapping has been performed using an XSLT. The mapping workflow has two major steps: In the first step all rdf-triples are generated interpreting the MODS part and the METS part following the logical structure. The second step deduplicates and aggregates the properties of all resources resulting in a proper and clear RDF output.

Table of mappings
The mapping has been performed with the same XSLT from UB Frankfurt. The respective parameters have been adapted accordingly.