1. Designing the LOT Resource Discovery Service: Architectures & Models Kathleen R. Murray December 17, 2002

2. 12/17/02LOT RDS: Architecture2 Service-Centric Virtual Library User Groups Resources Technology Management SERVICES

3. 12/17/02LOT RDS: Architecture3 User-Driven Services LIBRARY SERVICES User Group User Group User Group User Group Library Resources Library Technology

4. 12/17/02LOT RDS: Architecture4 Architecture PROVIDER LAYER SERVICES LAYER USER LAYER Communication Protocols 1 3 2

5. 12/17/02LOT RDS: Architecture5 Provider Layer Digital Content LibrarianLibrarySupplier Provider Type Dependent on VL Service Resource Discovery Service Virtual Reference Service Resource Sharing Service Document Delivery Service USER LAYER 1 3 2

6. 12/17/02LOT RDS: Architecture6 Services Layer Standard Information Interchange Among Services FinancialAuthorization Resource Sharing Patron Account Library Information Education Resource Discovery ReferencePersonalization

7. 12/17/02LOT RDS: Architecture7 Web Services Building Blocks for Constructing Applications Service A Resource Discovery Service B Authorization

8. 12/17/02LOT RDS: Architecture8 Web Services: Components Service A Resource Discovery Service B Authorization Service Registry Service Requestor Service Provider

9. 12/17/02LOT RDS: Architecture9 Web Services: Protocol Stack LayerProtocol DiscoveryUDDI DescriptionWSDL XML MessagingRPC-XML, SOAP TRANSPORTHTTP, SMTP, FTP

10. 12/17/02LOT RDS: Architecture10 Web Services: Protocols Service Registry Service Requestor Service Provider XML-Based Information Exchange SOAP UDDI - WSDL WSDL

11. 12/17/02LOT RDS: Architecture11 Web Services Resource Discovery Service Service B Authorization Service Registry UDDI - WSDL Publish UDDI - WSDL Find WSDL - SOAP Invoke Service

12. 12/17/02LOT RDS: Architecture12 Resource Discovery

13. 12/17/02LOT RDS: Architecture13 Resource Discovery: Functional View 1.TexShare Databases 2.Electronic Archive of Government Information 3.Statewide Virtual Catalog Content or Resource Collections 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 Information Retrieval Systems

14. 12/17/02LOT RDS: Architecture14 Resource Discovery: Functions Browse Select Collection Evaluate Search Common User Interface Personalize Save Acquire

15. 12/17/02LOT RDS: Architecture15 Resource Discovery: Architecture DIGITAL CONTENT TexShareTRAILVCOthers USER LAYER LibraryHomeOfficeMobile SERVICES LAYER Resource Discovery Z39.50 HTTP OTHER Personalization Authentication SOAP

16. 12/17/02LOT RDS: Architecture16 Content OAI Repository Standards-based Search & Retrieval Protocols Proprietary or Non-standard Search & Retrieval Protocols Content Gateway Common Interface Resource Discovery: Operational View

17. 12/17/02LOT RDS: Architecture17 Thank you!