 Nowadays the World Wide Web provides the possibility to search for information across heterogeneous archives/databases/catalogues, but the systems managing different information resources must be “interoperable” (capable to work together), and interoperability requires that the same metadata schema be used.As Stefania Biagioni (of the Italian Istituto di Scienza e Tecnologie dell’Informazione - ISTI, Consiglio Nazionale delle Ricerche) clearly commented, there is much work towards standardization and the Dublin Core Initiative (DCMI