摘要：The contribution starts from the Mauro Guerrini book (Dalla catalogazione alla metadatazione) that he has the definition of metacatalogation wassuggested, as a term containing a series of descriptive phenomena that should make it possible to identify and represent both archives and libraries. Between “cataloging and metadating” the descriptive elements resist. A bibliographic record of a paper catalog consists of a metadata set, just as the elements represented in an archival search tool can be called metadata. For real innovation, the archival inventory must be transformed into an information system, almost a search engine, characterized by specific strategies and filters. The inventory will be in the archive and no longer of the archive even if the contextual elements as a whole must never fail. Information constitutes the essential heritage of any society: the public, civil and political perception of archives and libraries has the task of putting themselves at the service of enlarged communities and processes on a very large range.
