Integration of ILL and Z39.50 Virtual Library Services session December 2000 ZIG Meeting

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Integration of ILL and Z39.50 Virtual Library
Services sessionDecember 2000 ZIG Meeting

• Leif Andresen
• Danish National Library Authority
• and danZIG

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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

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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

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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.h
  tml
• The danZIG profile include a detailed
  specification for ESN B2 and B3

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PresentRequest for Holdings

• The danZIG model
• PresentRequest from client include
• OID for Z39.50 Holdings Schema
• HoldingsESN-B2

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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

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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

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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

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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

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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

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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

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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

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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

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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

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The integrated ILL solution

• One session
• Update own ILL-database
• Check holdings in target before request
• Answer from target in same session