Export from DSpace to Fedora Repository Bridge Project

Export from DSpace to Fedora Repository Bridge Project October 2005

Contents Background n Requirements n Systems and architecture n Interactions n Standards n Conclusion n

Introduction Building a bridge to allow export of electronic theses from institutional repositories using DSpace to a national repository using Fedora. Export will be automated and will cover Ph. D and MPhil theses as well as some taught Masters theses, in a manner that mimics the present arrangement for paper based theses.

At present University NLW catalogues shelves (for access) shelves (for archival storage)

Requirements - functions Automatic export of e-theses from DSpace into Fedora n Manual specification of other items to export n Log and report success or failure of software n Security n

Requirements – use cases Repository Bridge List items Institutional Repository Export item <<uses>> Exporter Sysadmin Archive Repository Import items View logs Submitter Add item to export Importer Sysadmin

Requirements - constraints Designed so that maintenance of code relating to either repository is local to that repository n Avoid changes to repository tools themselves n Use established, stable standards for transfer of metadata n

System architecture University NLW Web GUI Bridge module Exporter Web GUI Bridge module Importer Web services Import. List (M ET S) Export. List Ingest AI -P database O database M H OAI-PMH DSpace Fedora

System interaction (1) : Import. List : Importer : Export. List handshake start export get list OAI get. Record (METS) save item verify export {until no more items} finished DSpace

System interaction (2) : Import. List : Importer : Export. List Fedora start ingest item {until no more items} handshake notify ingest save identifiers finished

Standards (OAI and METS) n Available “out of the box” DSpace can use OAI-PMH and export using METS n Fedora can use METS as basis for import n Not specific to any particular software n Likely to be relatively stable n But…

Questions Does OAI-PMH’s use of “sets” restrict design of institutional repositories? n How do we decode the binary encoded rights (licence) data? n What problems does the lack of structural metadata in DSpace export cause? n

Another bridge n With ETh. OS UK database of theses n NLW acts as Welsh hub Inst NLW UK Do. T Inst

Export to UK-Do. T From Fedora to BL n OAI-PMH n n n Needs richer set of metadata than plain Dublin Core OAI data provider provision in Fedora 2. 1 will support this Multiple metadata formats n Incremental harvest by date modified n Support for OAI sets n

Progress so far Investigations into submission and deposit of theses n Requirements specification n Started on design specification n So…

…it’s early days Watch this space… Project website at n http: //www. inf. aber. ac. uk/bridge/ Contact n Jon Bell, jpb@aber. ac. uk n Glen Robson, gmr@llgc. org. uk