ERPANET-Workshop „Persistent Identifiers“ (18th June 2004 )

ERPANET-Workshop „Persistent Identifiers“ (18th June 2004) Persistent Identifiers in Germany – Activities at Die Deutsche Bibliothek in the context of the EPICUR-project Die Deutsche Bibliothek Kathrin Schroeder

Persistent Identifier related activities at Die Deutsche Bibliothek • CARMEN-AP4 project (1999 - 2002) • Development of a Prototype • Introduction of co-operative URN-Management for Online-Dissertations • urn:nbn:de:[designations of library association]:[official notation of university libraries]-[unique production number][check digit] • EPICUR project (2002 - 2005) • Extension of established URN-Management • Enhancement and migration of the prototype • Objective: URNs replace URLs 1999 2001 2002 2005

URN-Strategy of Die Deutsche Bibliothek (EPICUR) • Objectives • <urn:nbn:de:1111-2003121811> • „Provision of organisational and technical conditions to assign, manage and resolve URNs the namespace "nbn:de" • Assignment of URN sub-namespaces • URN-Assignment • URN-Registration • URL-Administration • URN-Resolving • Services of Die Deutsche Bibliothek

Principles of URN Management – State of the Art Naming Authority, Registration, Resolution (urn:nbn:de, urn:nbn:ch, urn:nbn:se) Delegated Naming Authority Delegated Naming Authority External Resolution Service(s) Delegated Naming Authority Delegated Naming Authority

Technical and organisational Infrastructure of URN Management Die Deutsche Bibliothek Mirror (BSZ) Libray Association / Institution (Publishers etc., NL in Switzerland) aggregate External Resolution Service(s) University Libraries / Ass. Institutions University Libraries / Institutions

Formal URN-structure Libraries belonging to library association structure urn:nbn:de:[designations of library association]:[official notation of university libraries]-[unique production number][check digit] urn:nbn:de:gbv:089-3321752945 Institutions outside the library association urn:nbn:de:[four digit number]-[unique production number][check digit] urn:nbn:de:0001-00016 Contact + Registration Kathrin Schroeder <mailto:nbn-request@ddb.de>

URN-Strategy of Die Deutsche Bibliothek (EPICUR) • To what can a URN (nbn:de) be assigned and managed? • objects currently archived by Die Deutsche Bibliothek • objects to be archived in Die Deutsche Bibliothek in the future • Objects which will be administered on certified document servers • Quality criteria e.g. URL-Updating • Endeavors by DINI • http://www.dini.de/dini/zertifikat/dini_certificate.pdf • perspective of long term preservation • (BMBF project: http://www.langzeitarchivierung.de) no content-based selection!

URN-Assignment – State of the Art • Online dissertations urn:nbn:de:gbv:089-3321752945 • Publisher publications urn:nbn:de:0002-0104 • Reports urn:nbn:de:0001-00021, • urn:nbn:de:kobv:b103-000011 • Conference proceedings urn:nbn:de:bsz:93-opus-15563 • Journals urn:nbn:de:1111-2004020921 • Articles urn:nbn:de:bsz:93-opus-13482 • Videos urn:nbn:de:0001-00099, urn:nbn:ch:bel-2319 • Annual reports urn:nbn:de:kobv:b103-030012 • Monographs urn:nbn:de:bsz:93-opus-13983 • Digitized materials urn:nbn:de:kobv:b103-030026 • Lectures urn:nbn:de:1111-2004033057 • XML namespace urn:nbn:de:1111-2004033116

URN-Objects Object Part objects

URN-Strategy of Die Deutsche Bibliothek (EPICUR) • Principles • URNs are valid after their registration at Die Deutsche Bibliothek • URN-Registration within 24 hours of their publication on a document server • URL-Updating is mandatory • In case of a distributed object storage URN must be transferred as part of the metadata or as access mechanism • [...] • Recommendations • URNs should be assigned as closely as possible to the object • URNs should be a component of metadata. • A character set according to RFC 1738 for URLs should be used.

URN-Registration • Requirement • URN-Registration within 24 hours non their publication on a document server • Realization • What? • - URN • - URL(s), MimeTypes • How? - Existing workflows - Several transfer interfaces Separation of bibliographic metadata and information concerning the URN management

URN-Registration using existing Workflows – Metadata for Online-Dissertations „MetaDiss“

URN-Management: Additional Transfer Interfaces • Manual URN administration - Web-Interface <http://nbn-resolving.org/login.php> • Automated URN administration - E-Mail-Attachment • - OAI 2.0 • http://www.persistent-identifier.de/?link=200

Application at Die Deutsche Bibliothek – State of the Art URN http://dbf-opac.ddb.de

Application at Die Deutsche Bibliothek – Objective I PI NO URLs!

Application at Die Deutsche Bibliothek – Objective II PI No Resolver-URL!

Application at Die Deutsche Bibliothek – Objective II A first Step: Development of a Browser-Plugin for Mozilla, Netscape, Firefox http://www.persistent-identifier.de/?link=550

URN-Adaption – State of the Art • Institution • > 60 University libraries • Research Institutions, Publishers, regional Web-Archivs • National Library in Switzerland (SLB) [...] • monthly updated statistics • http://www.persistent-identifier.de/?link=540 Digital Library Tools • OPUS • MyCoRe • Several document servers

Thank you! • Contact at Die Deutsche Bibliothek: • Kathrin Schroeder Tel: 069-1525-1480 • Alexander Slotta Tel: 069-1525-1761 • E-Mail: nbn-request@ddb.de • Homepage: „http://www.persistent-identifier.de“

ERPANET-Workshop „Persistent Identifiers“ (18th June 2004 )