Linked data nei progetti delle biblioteche europee

The great European libraries devote energies to realize the model of linked data. The analyzed projects cover four countries. France: data.bnf.fr project of the Bibliothèque nationale de France (BNF) uses the linked open data to publish and make better use of their data on the Web: the catalogs of the Library and the data of the Gallica digital library. Great Britain: the bnb.data.bl.uk project of the British Library publishes a part of the English national bibliography in linked open data. Germany: Deutsche Nationalbibliothek (DNB) has initiated in 2010 the project of conversion and publication of its authority records in linked open data; in 2012 the Library extended the project to bibliographic records. Spain: the datos.bne.es project of the National Library of Spain reflects the French project, from the three types of treated resources: Composers, Works, Persons.From this brief analysis of the most important European projects of publication of data in linked open data it is possible to draw some reflections: •the FRBR model is strongly recognized in all projects; •they push the limits of existing data, transforming them into linked data; •the same philosophy in all projects: the paradigm of linked data and the Semantic Web; •huge financial investments. The language of the linked data is often accomplished with the simultaneous membership of RDA and BIBFRAME.