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Modernizing Z39.50 for Enhanced Interoperability and Applications

This article explores the current issues and challenges of Z39.50, a protocol primarily used within libraries, and proposes solutions to modernize it. The objective is to streamline the protocol, align it with current technology, and encourage support from major vendors, while focusing on applications framework and popularizing its activities. The article discusses pruning obscure features, specifying Z39.50 over SOAP, developing new profiles, and creating an open forum for proposals and tutorials.

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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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