Crosswalking from CMDI to Dublin Core and MARC 21

Crosswalking from CMDI to Dublin Core and MARC 21 Claus Zinn, Thorsten Trippel, Steve Kaminski, Emanuel Dima Seminar f¨ur Sprachwissenschaft, Universit¨at T¨ubingen Wilhelmstrasse 19, 72074 T¨ubingen, Germany firstName.lastName@uni-tuebingen.de Abstract The Component MetaData Infrastructure (CMDI) is a framework for the creation and usage of metadata formats to describe all kinds of resources in the CLARIN world. To better connect to the library world, and to allow librarians to enter metadata for linguistic resources into their catalogues, a crosswalk from CMDI-based formats to bibliographic standards is required. The general and rather fluid nature of CMDI, however, makes it hard to map arbitrary CMDI schemas to metadata standards such as Dublin Core (DC) or MARC 21, which have a mature, well-defined and fixed set of field descriptors. In this paper, we address the issue and propose crosswalks between CMDI-based profiles originating from the NaLiDa project and DC and MARC 21, respectively. Keywords: Metadata formats, crosswalks, bibliographic metadata 1. Motivation The NaliDa project aims at constructing an infrastructure for the long-term archival of linguistic resources with tech- nology and workflows that are manageable and sustainable. The infrastructure relies on resource providers to use rich but standardized descriptional means to associate their re- sources with metadata; it entrusts the university’s central computing services with the long-term archiving of linguis- tic resources; and it asks the university library to ingest all resources’ metadata into their catalogues so that interested parties can easily search for them. The project aims at fos- tering a close cooperation between library and computing services where library catalogues are connected with the research data repositories of the computing centre, so that users can profit from easy-to-use access points. With the new infrastructure in place, research data will move from the individual research departments to the infrastructure in- stitutions of the university, which have the luxury of longer time spans and more stable financial, personnel and com- puting resources. Making linguistic resources accessible to researchers re- quires their accurate description with metadata. In our workflows, resources are not described by librarians but by the resource creators (who know their resources best). They make use of the Component Metadata Infrastructure (CMDI) to describe their resources with rich metadata us- ing a significant amount of linguistic vocabulary. In turn, this allows linguists to better search for and identify lin- guistic resources of their interest. In fact, for each type of resource that is being created in our department, we have devised a purpose-built CMDI profile to allow users to de- scribe resources of this type is the best possible way. Making accessible linguistic resources via standard library catalogues is not trivial, because their CMDI-based meta- data records cannot be simply ingested into existing library catalogues. In the library world, there are only a few estab- lished metadata standards that library cataloging depends on. For librarians, CMDI is not an acceptable format as it does not fit their cataloging infrastructure. It is hence nec- essary to convert discipline-specific and rich metadata such as CMDI-based formats to …

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