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Z39.50 & The Z Texas Profile

The Z Texas Profile is a Z39.50 profile developed by the Texas Z39.50 Implementors Group (TZIG) to address interoperability challenges in library systems. It specifies options and parameters for Z39.50 implementation, improves search and retrieval results, aids in purchasing decisions, and supports resource sharing. This tutorial provides an overview of the profile and its benefits.

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Z39.50 & The Z Texas Profile

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  1. Z39.50 & The Z Texas Profile William E. Moen <wemoen@jove.acs.unt.edu> School of Library and Information Sciences University of North Texas Denton, TX 72603

  2. Threats to Interoperability • Functional Interoperability Ability of user to successfully search and retrieve information in a meaningful way • Three threats to interoperability 1. Functionality supported by the standard 2. Differences in implementation of the standard 3. Differences in local information retrieval system • Z39.50 profiles provide a solution to #2 The Z Texas Profile -- ZIG Tutorial

  3. Z39.50 Profiles ATS-1 GILS CIMI GEO Danzig Profile Digital Collections Union Catalogue Thesaurus profile Z Texas Complete Z39.50 Specifications Z39.50 Profile Z39.50 Profiles • Specifies options, values, and parameters from base standards • Fully specifies how Z39.50 will be used in specific application • Increases likelihood of interoperability between separate implementations The Z Texas Profile -- ZIG Tutorial

  4. In Other Words, A Profile ... • Represents community consensus on requirements • Identifies Z39.50 specifications to support requirements • Improves search and retrieval results • Aids in purchasing decisions • Provides specifications for vendors to build Z39.50 products The Z Texas Profile -- ZIG Tutorial

  5. The Z Texas Profile • Reflects Texas library requirements & specifications • Who’s involved? • Libraries with Z39.50 implementations • Libraries acquiring Z39.50 products • Libraries considering a Z39.50 implementation • Currently representatives from: • Texas libraries -- public, school, academic, special • State Institutions/Organizations • Z39.50 Experts • The Texas Z39.50 Implementors Group (TZIG) • First Initiative: Z Texas:The Z39.50 Profile The Z Texas Profile -- ZIG Tutorial

  6. Scope and Structure of the Profile • Scope • Current version: search & retrieval from OPACs, including holdings information • Subsequent versions: other networked electronic resources • Structure • Modular • Current Functional Areas Defined • Functional Area -- Library Catalog Search & Retrieval • Functional Area -- Retrieval of Bibliographic Holdings Information • Potential Functional Areas • Cross Domain Searching The Z Texas Profile -- ZIG Tutorial

  7. Addressing Semantic Interoperability • Identify searching requirements (tasks) • Two categories of searching: basic, specialized • Basic: Author, Title, Subject, Keyword, Boolean • Specialized: ISBN, Call Number, Specific Controlled Vocabulary • Defining the searches (semantics and behavior) • Exact Title Search -- exact match beginning with first character of first word appearing in the title of an item, in the series title, or the uniform title • Specifying Z39.50 query to represent the search • Standard combination of Z39.50 Attribute Types and Values The Z Texas Profile -- ZIG Tutorial

  8. Benefits of the Z Texas Profile • Focuses time and resources to build consensus among Texas librarians • Ensures Texas libraries’ needs are communicated and addressed to Z39.50 vendors • Educates and informs Texas librarians • Ensures effective Z39.50 implementation for Texas libraries • Provides technical infrastructure for statewide resource sharing The Z Texas Profile -- ZIG Tutorial

  9. Status of the Z Texas Profile • Z Texas Profile: A Z39.50 Profile for Library Systems Applications in Texas, Release 1.0 • Stable draft released in April 1999 • Expected implementations by vendors in fourth quarter 1999 • Contributing to an emerging consensus on an international profile The Z Texas Profile -- ZIG Tutorial

  10. Z Texas Project Information • Z Texas Project Website http://www.tsl.texas.gov/LD/z3950/ • Z Texas Profile http://www.tsl.texas.gov/LD/z3950/TZIGProfile99Apr20.htm • TZIG Member List http://www.tsl.texas.gov/LD/z3950/committee.htm • Texas Z39.50 Listserv http://www. tsl.texas.gov/LD/z3950/list.htm The Z Texas Profile -- ZIG Tutorial

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