designing the lot resource discovery service: architectures & models kathleen r. murray december...

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

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

Designing the LOT Resource Discovery Service:Architectures & Models

Kathleen R. Murray

December 17, 2002

Page 2: Designing the LOT Resource Discovery Service: Architectures & Models Kathleen R. Murray December 17, 2002

12/17/02 LOT RDS: Architecture 2

Service-CentricVirtual Library

UserGroups

Resources

Technology

Management

SERVICES

Page 3: Designing the LOT Resource Discovery Service: Architectures & Models Kathleen R. Murray December 17, 2002

12/17/02 LOT RDS: Architecture 3

User-Driven Services

LIBRARY SERVICES

UserGroup

UserGroup

UserGroup

UserGroup

LibraryResources

LibraryTechnology

Page 4: Designing the LOT Resource Discovery Service: Architectures & Models Kathleen R. Murray December 17, 2002

12/17/02 LOT RDS: Architecture 4

Architecture

PROVIDER LAYER

SERVICES LAYER

USER LAYER

Communication Protocols

Communication Protocols

1

3

2

Page 5: Designing the LOT Resource Discovery Service: Architectures & Models Kathleen R. Murray December 17, 2002

12/17/02 LOT RDS: Architecture 5

Provider Layer

DigitalContent

Librarian Library Supplier

Provider Type Dependent on VL Service

ResourceDiscovery

Service

Virtual Reference

Service

ResourceSharingService

DocumentDeliveryService

USER LAYER1

3

2

Page 6: Designing the LOT Resource Discovery Service: Architectures & Models Kathleen R. Murray December 17, 2002

12/17/02 LOT RDS: Architecture 6

Services Layer

Standard Information Interchange Among Services

Financial

Authorization

ResourceSharing

PatronAccount

LibraryInformation

EducationResourceDiscovery

Reference Personalization

Page 7: Designing the LOT Resource Discovery Service: Architectures & Models Kathleen R. Murray December 17, 2002

12/17/02 LOT RDS: Architecture 7

Web Services

Building Blocks for Constructing Applications

Service A

Resource Discovery

Service B

Authorization

Page 8: Designing the LOT Resource Discovery Service: Architectures & Models Kathleen R. Murray December 17, 2002

12/17/02 LOT RDS: Architecture 8

Web Services:Components

Service A

Resource Discovery

Service B

Authorization

ServiceRegistry

ServiceRequestor

ServiceProvider

Page 9: Designing the LOT Resource Discovery Service: Architectures & Models Kathleen R. Murray December 17, 2002

12/17/02 LOT RDS: Architecture 9

Web Services:Protocol Stack

Layer Protocol

Discovery UDDI

Description WSDL

XML Messaging RPC-XML, SOAP

TRANSPORT HTTP, SMTP, FTP

Page 10: Designing the LOT Resource Discovery Service: Architectures & Models Kathleen R. Murray December 17, 2002

12/17/02 LOT RDS: Architecture 10

Web Services:Protocols

ServiceRegistry

ServiceRequestor

ServiceProvider

XML-Based Information Exchange

SOAP

UDDI - WSDLUDDI - WSDL

WSDL

Page 11: Designing the LOT Resource Discovery Service: Architectures & Models Kathleen R. Murray December 17, 2002

12/17/02 LOT RDS: Architecture 11

Web Services

ResourceDiscoveryService

Service B

Authorization

ServiceRegistry

UDDI - WSDLPublishUDDI - WSDL

Find

WSDL - SOAP

Invoke Service

Page 12: Designing the LOT Resource Discovery Service: Architectures & Models Kathleen R. Murray December 17, 2002

12/17/02 LOT RDS: Architecture 12

Resource Discovery

Page 13: Designing the LOT Resource Discovery Service: Architectures & Models Kathleen R. Murray December 17, 2002

12/17/02 LOT RDS: Architecture 13

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

Page 14: Designing the LOT Resource Discovery Service: Architectures & Models Kathleen R. Murray December 17, 2002

12/17/02 LOT RDS: Architecture 14

Resource Discovery: Functions

Browse

SelectCollection

Evaluate

Search

Common User Interface

Personalize

Save

Acquire

Page 15: Designing the LOT Resource Discovery Service: Architectures & Models Kathleen R. Murray December 17, 2002

12/17/02 LOT RDS: Architecture 15

Resource Discovery:Architecture

DIGITAL CONTENT TexShare TRAIL VC Others

USER LAYER Library Home Office Mobile

SERVICES LAYER Resource Discovery

Z39.50

HTTP

OTHERPersonalization

Authentication

SOAP

SOAP

Page 16: Designing the LOT Resource Discovery Service: Architectures & Models Kathleen R. Murray December 17, 2002

12/17/02 LOT RDS: Architecture 16

Content

Content

Content

Content

Content

OAIRepository

Standards-basedSearch & RetrievalProtocols

Proprietary or Non-standard

Search & Retrieval Protocols

Content

Content

Content

Gateway

CommonInterface

Resource Discovery:Operational View

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

12/17/02 LOT RDS: Architecture 17

Thank you!