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Modernizing Z39.50 for Enhanced Interoperability and Applications

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  1. Z39.50 Issues ZIG December 2000 at LC Poul Henrik Jørgensen, DBC mailto:phj@dbc.dk

  2. Background • Take-up within selected communities • Growing number of Web-Z gateways • Constrained to metadata resources • Used for parallel distributed searching • Few advanced services implementations • Compatible international profiles Poul Henrik Jørgensen, DBC

  3. Issues • Confusing specifications • Ignored by mainstream systems • Few proprietary toolkits • Interoperability problematic • Limited applications logic • No Object Oriented facilities • Closed ZIG fraternity Poul Henrik Jørgensen, DBC

  4. Objectives • Prune obscure facilities & OSI baggage • Specify streamlined Object RPC API • Align with current technology • Encourage support by major vendors • Focus on applications framework • Popularise ZIG activities Poul Henrik Jørgensen, DBC

  5. Solutions • Review of ”version 4” features • Pruning obscure facilities • Specification of Z39.50 over SOAP • Technology, tools, Object API • Bath profile development • Mainstream support • New ZIG format • Open forum for proposals & tutorials • Applications Focus Poul Henrik Jørgensen, DBC

  6. Summary • Z39.50 persists mainly within libraries • Basic interoperability is achievable • Technology need to be modernised • Obscure features should be dropped • Unclear relationship to ILL & Circulation • New ZIG format and procedures Poul Henrik Jørgensen, DBC

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