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Integrated ILL and Z39.50 Virtual Library Services

This session from the December 2000 ZIG Meeting discusses the integration of ILL (Interlibrary Loan) and Z39.50 virtual library services. It explores the use of communication standards and the functionality of the danZIG profile in Danish libraries.

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Integrated ILL and Z39.50 Virtual Library Services

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  1. Integration of ILL and Z39.50 Virtual Library Services sessionDecember 2000 ZIG Meeting Leif Andresen Danish National Library Authority and danZIG

  2. danZIG vision: • An integrated network based on communications standards with the functionality raised to a level, where all other electronic connection between library systems are unnecessary Integration of ILL and Z39.50

  3. Bibliographic attributes The danZIG profile specify the full list of search attributes used in Danish libraries: • 50 BIB-1 use attributes • 26 DAN-1 use attributes based on a specification of danMARC2 fields and subfields for each use attribute Integration of ILL and Z39.50

  4. Z39.50 Holdings Schema • Z39.50 Holdings Schema, Version 1.1 of July 2000 • Object identifier : 1.2.840.10003.13.7.1 http://lcweb.loc.gov/z3950/agency/defns/holdings.html • The danZIG profile include a detailed specification for ESN B2 and B3 Integration of ILL and Z39.50

  5. PresentRequest for Holdings • The danZIG model: • PresentRequest from client include: • OID for Z39.50 Holdings Schema • HoldingsESN-B2 Integration of ILL and Z39.50

  6. Present of Holdings (1) Answer from National Union Catalogue include high level information and: • targetLocationId • unique identification in local system • InstitutionOrSiteId • library code • networkAddress • Z39.50 URL of local system Integration of ILL and Z39.50

  7. Present of Holdings (2) Answer from local library system include more detailed information and also: • targetLocationId • unique identification in local system • InstitutionOrSiteId • library code • networkAddress • Z39.50 URL of local system Integration of ILL and Z39.50

  8. Present of Holdings - next step (1) If more detailed information is requested : • If client have detected that networkAddress in Holdings record differ from networkAddress of bibliographic record: • PresentRequest with HoldingsESN-B3 is sent to target of local library Integration of ILL and Z39.50

  9. Present of Holdings - next step (2) If more detailed information is requested from National Union Catalogue : • If client haven't detected that networkAddress in Holdings record differ from networkAddress of bibliographic record: • PresentRequest with HoldingsESN-B3 is sent to target National Union Catalogue Integration of ILL and Z39.50

  10. Present of Holdings - next step (3) Two possibilities: • The National Union Catalogue sent a HoldingsESN-B3 to local library target and and send the received ´Holdings record to client • The National Union Catalogue sent a diagnostic 25: Not supported ESN Integration of ILL and Z39.50

  11. Bridge building to ILL Holdings information include identification for all levels: • Bibliographic level: targetLocationId • BibPart (journal issue or multi volume) level: targetBinPartId • Physical item: targetPieceId Integration of ILL and Z39.50

  12. Z39.50/ILL Profile 1 The danZIG model is based on: • Z39.50/ILL Profile 1 - Profile for the Use of Z39.50 Item Order Extended service to transport ILL protocols APDUs • Include all transactions from the ISO ILL standard - ISO10161 Integration of ILL and Z39.50

  13. ILL transactions - danZIG profile level 1 • ILL Request • For data processing based on the unique identification - e.g. targetLocationId - but without title, author, call number etc., which is for manual processing • ILL Answer • Status-Query • Status-or-error-report Integration of ILL and Z39.50

  14. ILL over Z39.50 • Z39.50 is used for moving ILL transactions from client to target • The ILL transactions is routed through the Z39.50 target with no use of a task database • Transaction-id in the ILL-request identify the pending request - not task-id • ILL-transaction can use other routes Integration of ILL and Z39.50

  15. The integrated ILL solution • One session • Update own ILL-database • Check holdings in target before request • Answer from target in same session Integration of ILL and Z39.50

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