Nuovo soggettario e WebDewey italiana: strategie di mapping e integrazione

The National Central Library of Florence takes care of and develops semantic indexing tools which are usable in libraries, archives, museums, and other cultural institutions. In the last few years, the interoperability between Nuovo Soggettario and other knowledge organization systems, accessible for free on the Web, has increased significantly in order to give users the opportunity to search and identify relevant information from among vast collections and other resources. In this context, one of the most interesting experiences has been the mapping between Nuovo Soggettario Thesaurus’s concepts/terms and DDC’s concepts/notations (in WebDewey Italian version) established and maintained by the BNCF. The criteria adopted for the creation of concordances between equivalent concepts are being clarified continually and are in compliance with the latest international standards and suggestions of the EDUG group (European DDC Users Group). Thanks to the collaboration with AIB, the interaction between the two tools is visible not only in the record of Nuovo Soggettario terms but also in the WebDewey (IT) notations in which the Nuovo Soggettario verbal equivalents are next to those of the LCSH.