1. A Resource Discovery Service for the Library of Texas Requirements, Architecture, and Interoperability Testing William E. Moen, Ph.D. Principal Investigator CNI Fall Task Force Meeting December 5, 2002 San Antonio, Texas

2. William E. MoenCNI Task Force Meeting -- December 5, 20022 Library of Texas A Virtual Library Reaching Across Boundaries to Extend Access to A Range of Information Resources Collection Boundaries Organizational Boundaries Format Boundaries

3. William E. MoenCNI Task Force Meeting -- December 5, 20023 ZLOT Project Resource discovery service Search/retrieval interface Virtual catalog TIF Board Library of Texas Resource discovery service Commercial online databases Preserving electronic government documents Training librarians TSLAC FY 2001 - 2005 TXCDK FY 2002 -2003

4. William E. MoenCNI Task Force Meeting -- December 5, 20024 ZLOT Project Z Implementation Component of the Library of Texas Developing a standards-based approach for the virtual library Project Focus Identifying requirements for resource discovery across library catalogs and online databases Demonstrating feasibility and utility of resource discovery tools

5. William E. MoenCNI Task Force Meeting -- December 5, 20025 Resource Discovery

6. William E. MoenCNI Task Force Meeting -- December 5, 20026 Finding & Exposing Finding: Users can find only what’s been exposed Exposing: How content is exposed determines the how and if user can find it Goal: Connect users to information Strategy: Interoperability on multiple levels Tactic: Common agreements for exposing and finding –Protocols –Syntaxes –Semantics

7. William E. MoenCNI Task Force Meeting -- December 5, 20027 ZLOT Components Functional Requirements Technology Inventory Assessment Proof of Concept Evaluation Service-Based Architecture Technical Requirements & Specifications

8. William E. MoenCNI Task Force Meeting -- December 5, 20028 Functional Requirements Key Players –Advisory Group –Focus Groups Requirements –Virtual Catalog –Search and Retrieval Interface –Search Interface –Retrieval Interface Priorities 1.Must Have 2.Should Have 3.Nice to Have Resource Discovery Service Virtual Catalog Search & Retrieval Interface

9. William E. MoenCNI Task Force Meeting -- December 5, 20029 Common Interface — Diverse Resources

10. William E. MoenCNI Task Force Meeting -- December 5, 200210 ZLOT Components Functional Requirements Proof of Concept Evaluation Service-Based Architecture Technical Requirements & Specifications Technology Inventory Assessment

11. William E. MoenCNI Task Force Meeting -- December 5, 200211 Texas Library Landscape Libraries: –165 academic libraries –550 public libraries Holdings: –Academic: 33,458,000 –Public: 27,466,300 Technology: –ZLOT Technology Inventory and Assessment Survey –53% response rate

12. William E. MoenCNI Task Force Meeting -- December 5, 200212 Technology Assessment: Z39.50 Servers

13. William E. MoenCNI Task Force Meeting -- December 5, 200213 Technology Assessment: Z39.50 Clients

14. William E. MoenCNI Task Force Meeting -- December 5, 200214 Technology Assessment: Library Websites AcademicPublicSample Have website100%62%69% Hosted in library45%40%42% Maintained by library81%70%73%

15. William E. MoenCNI Task Force Meeting -- December 5, 200215 Technology Assessment: Internet Access Fastest Connection

16. William E. MoenCNI Task Force Meeting -- December 5, 200216 ZLOT Components Functional Requirements Technology Inventory Assessment Evaluation Service-Based Architecture Technical Requirements & Specifications Proof of Concept

17. William E. MoenCNI Task Force Meeting -- December 5, 200217 Proof of Concept Assess feasibility of functional requirements through prototypes Examine capabilities of vendor products Identify challenges –Z39.50 access to library catalogs –Concurrent searching –Interface design Participation by 11 library technology vendors

18. William E. MoenCNI Task Force Meeting -- December 5, 200218 Proof of Concept: Resource Discovery Service 1.22 - Z39.50 Catalogs 2.6 - Web Catalogs 3.10 - TexShare Databases 4.Texas Records and Information Locator Resources Middleware Interface 1.Broadcast Searching a.Similar Resources b.Dissimilar Resources 2.Common Retrieval Display 1.Translates Searches 2.Formats Retrievals 3.Interacts with Multiple IR Systems Information Retrieval Systems 10 Vendor Prototypes

19. William E. MoenCNI Task Force Meeting -- December 5, 200219 ZLOT Components Functional Requirements Technology Inventory Assessment Proof of Concept Service-Based Architecture Technical Requirements & Specifications Evaluation

20. William E. MoenCNI Task Force Meeting -- December 5, 200220 Evaluation Evaluation plan for the Library of Texas –Goals, objectives, outcomes, and indicators for 4 LOT components Assessment of Proof of Concept prototypes –Systematic evaluation of prototypes against functional requirements –Inform Technical Requirements & Specifications

21. William E. MoenCNI Task Force Meeting -- December 5, 200221 Sample Results

22. William E. MoenCNI Task Force Meeting -- December 5, 200222 ZLOT Components Functional Requirements Technology Inventory Assessment Proof of Concept Evaluation Technical Requirements & Specifications Service-Based Architecture

23. William E. MoenCNI Task Force Meeting -- December 5, 200223 Service-Centric Virtual Library User Groups Resources Technology Management SERVICES

24. William E. MoenCNI Task Force Meeting -- December 5, 200224 User-Driven Services LIBRARY SERVICES User Group User Group User Group User Group Library Resources Library Technology

25. William E. MoenCNI Task Force Meeting -- December 5, 200225 Architecture PROVIDER LAYER SERVICES LAYER USER LAYER Communication Protocols

26. William E. MoenCNI Task Force Meeting -- December 5, 200226 Provider Layer PROVIDER LAYER Digital Content LibrarianLibrarySupplier Provider Type Dependent on VL Service Resource Discovery Service Virtual Reference Service ILL Service Document Order/Delivery Service

27. William E. MoenCNI Task Force Meeting -- December 5, 200227 Services Layer Standard Information Interchange Among Services Reference Financial Resource Discovery Resource Access Personalization Authentication

28. William E. MoenCNI Task Force Meeting -- December 5, 200228 Resource Discovery: Functional View 1.TexShare Databases 2.E-books 3.Electronic Archive of Government Information 4.Statewide Virtual Catalog Content or Resource Collections Representations of Resources 1.Proprietary Records 2.Indices of Full-text Files 3.Dublin Core Metadata Records 4.MARC Records MIDDLEWARE LOT Search & Retrieval Interface 1.Broadcast Searching a.Similar Resources b.Dissimilar Resources 2.Common Retrieval Display 1.Translates Searches 2.Formats Retrievals 3.Interacts with Multiple IR Systems Middleware Information Retrieval Systems

29. William E. MoenCNI Task Force Meeting -- December 5, 200229 Resource Discovery: Functions Browse Collection Selection Evaluation Query Common User Interface

30. William E. MoenCNI Task Force Meeting -- December 5, 200230 Resource Discovery: Architecture DIGITAL CONTENT SERVICES LAYER USER LAYER TexShareTRAILVCOthers Resource Discovery LibraryHomeOfficeMobile Personalization Authentication Z39.50 HTTP SOAP OTHER

31. William E. MoenCNI Task Force Meeting -- December 5, 200231 ZLOT Components Functional Requirements Technology Inventory Assessment Proof of Concept Evaluation Service-Based Architecture Technical Requirements & Specifications

32. William E. MoenCNI Task Force Meeting -- December 5, 200232 Technical Requirements & Specifications Refinement of functional requirements –Based on Proof of Concept experience –Formal assessment of prototypes –Vendor responses on functional requirements –Evolving understanding of the requirements Specifications of standards to improve interoperability

33. William E. MoenCNI Task Force Meeting -- December 5, 200233 Interoperability Factors Multiple and disparate systems Multiple protocols Multiple data formats, syntax, metadata schemes Multiple vocabularies, ontologies, disciplines Multiple languages, Multiple character sets Indexing, word normalization, and word extraction policies

34. William E. MoenCNI Task Force Meeting -- December 5, 200234 Z-INTEROP Testbed Z39.50 Interoperability Testbed Project A Institute of Museum and Library Services National Leadership Grant Goal: Improve Z39.50 semantic interoperability among libraries for information access and resource sharing

35. William E. MoenCNI Task Force Meeting -- December 5, 200235 Z-INTEROP Components Test dataset –400,000 MARC 21 records from OCLC’s WorldCat Z39.50 reference implementations –Z-client, Z-server, information retrieval system Test scenarios & searches –Searches with known result records from dataset Benchmarks –Results of test searches against reference implementations

36. William E. MoenCNI Task Force Meeting -- December 5, 200236 ZLOT & Z-INTEROP ZLOT resource discovery service specifies support for: –Z39.50 –Z39.50 profiles Z-INTEROP can be used to assist libraries and vendors in Z39.50 configuration and testing Improve user confidence in resource discovery service

37. William E. MoenCNI Task Force Meeting -- December 5, 200237 Issues Optimizing resource discovery –Concurrent / Broadcast searching performance –Z39.50 interoperability –Non-Z39.50 information providers –Static union v. dynamic virtual catalogs Users and usability –Interface design for various target audiences –Defining collection sets for searching

38. William E. MoenCNI Task Force Meeting -- December 5, 200238 Issues Standards and emerging technologies –XML –Web services –OpenURL –Z39.50 International: Next Generation Search / Retrieve for the Web Access control, authorization, and authentication Management for collaborative services –Governance –Policy

39. William E. MoenCNI Task Force Meeting -- December 5, 200239 William E. Moen wemoen@unt.edu LOT ZLOT Project Z-INTEROP Project Texas Center for Digital Knowledge