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NISO Circulation Interchange Protocol

NISO Circulation Interchange Protocol . A Standard in Development Pat Stevens, OCLC July 13, 2000. Topics. Background Work to date Approach Progress Challenges. What Do Users Want?. Simple access Reliable, fast delivery I.e., services like Amazon.com. More Specifically.

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NISO Circulation Interchange Protocol

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  1. NISO Circulation Interchange Protocol A Standard in Development Pat Stevens, OCLC July 13, 2000

  2. Topics • Background • Work to date • Approach • Progress • Challenges

  3. What Do Users Want? • Simple access • Reliable, fast delivery • I.e., services like Amazon.com

  4. More Specifically... • Easy, powerful, one-stop search and find • “Request” requiring minimal keying • Ability to track request (e.g. UPS) • Guaranteed, fast delivery • Integrated management of their loans (from local collection and outside…)

  5. Make it Easy! (example) • John Smith - items charged: • British Art in the 20th Century Due 8/15/00 [borrowed from local collection] • Bradshaw, T. Bloomsbury Artists Due 7/30/00 [requested and borrowed directly from consortial partner] • Holroyd, M. The Art of Dora Carrington Due 7/15/00 [not in local collection or consortium; borrowed from unaffiliated library via traditional ILL] • Gombrich, E. History of Art Due 7/10/00 10:00 pm [E-book, charged for use online]

  6. Unaffiliated institutions Consortial Partners New Supply Models Local Library

  7. Vendors & Systems - potential uses of protocol ILS/ Circ Sys ILL ILL ILS/ Circ Sys ILS/ Circ Sys ILS/ Circ Sys Self Service

  8. The Standard and Scope • A repertoire of messages & associated rules of syntax and semantics • Between and among computer-based applications • to effect circulation • to support controlled access to certain electronic resources or other library services • Not to define circulation functions

  9. Supports 3 application areas • Direct consortial borrowing • Circulation/Interlibrary Loan Interaction • Self-service Circulation • The standard’s test bed • It must support these, may support others

  10. Standards environment • 3M Standard Interchange Protocol • ISO 8459-4:1997 Bibliographic Data Element Directory: Part 4: Circulation Application • ISO 10160/61 Interlibrary Loan Application Service Definition & Protocol Specification • ANSI/NISO Z39.50-1995 Information Retrieval: Application Service Definition and Protocol (ISO 23950)

  11. 3M SIP • De facto standard for self checkout • Extended to support other functions • Allows the committee to build from a base of practical applications • 3M and other vendors experienced with the SIP are active participants

  12. A Goal -- as possible • Use existing definitions and terminology • Permit developers to meld standards into a single application

  13. Technical Assumptions and Design Principles • Keep it simple and within purpose • Confirmed Service -- Pairs of messages • Initiation -- response pairs • Each message carries full context necessary for processing • Requires connection-oriented transport • Simple State Table • governs messaging not circulation

  14. Message Syntax, Transport Protocol and Encoding • Message Syntax and Encoding • Syntax -- XML DTD • Message encoding -- XML following DTD • Transport • To be decided at August, 2000 meeting • Directly on top of TCP/IP • Wrapped in another protocol

  15. 3 Service Types • Lookup tell me something about • Update please take an action • Notification I have taken an action

  16. Messages • about 3 things (objects) • Users • Items • Agencies (Libraries)

  17. Lookup Services • Lookup • Lookup Agency • Lookup Item • Lookup User • Authenticate User • Not Authorize User • Authorization request implicit in an update • Lookups require a Unique ID

  18. Lookup Response • Did not Understand Message • Understood Message • Cannot Supply Information and Reason • Can Supply and the Information

  19. Unique ID’s • Agency ID’s • Registration scheme • Value in Scheme • Example OCLC and OCLC Symbol • User ID and Item ID are compound • Include the Agency ID

  20. Update Services • CheckOut Item and Undo Checkout Item • CheckIn Item • Recall Item and Cancel Recall Item • Renew Item and Cancel Renew Item • Request Item and Request Item • Send User Notice • Typical Circulation Transactions

  21. Update Services continued • Create Agency and Update Agency • Create Item and Update Item • Create User and Update User • Update User Fiscal Account • Create Services used for new objects • Update Services include modify and delete

  22. Update Responses • Did Not Understand Message • Understood Message • Cannot take Action Requested with Reason • Did Take Action • Response includes information on action taken, • Examples: Due Date, Item or User ID

  23. Notification Services • Item CheckedOut • Item Checked In • Item Recalled and Item Recalled Cancelled • Item Renewed and Item Renewed Cancelled • Item Requested • User Fiscal Account Updated • User Notice Sent

  24. Notification Service ... • Agency Created and Agency Updated • Item Created and Item Updated • User Created and User Updated

  25. Notification Service Response • Did not understand message • Understood message

  26. Messages defined in a DTD • Each service has 2 messages • Initiation and Response • All messages have • Header and Body • Header provides identifying information • Body provides details • Extensibility a goal

  27. Checkout Message <NCIPMessages> <CheckOutItem> <InitiationHeader> <FromSystemID>data</FromSystemID> <FromSystemAuthentication>data</ FromSystemAuthentication> <FromAgencyID>data</FromAgencyID> <FromAgencyAuthentication>data</FromAgencyAuthentication> <ToSystemID>data</ToSystemID> <ToAgencyID>data</ToAgencyID> </InitiationHeader> <AuthenticationValue> <Ordinal>data</Ordinal> <AuthenticationInput>data</AuthenticationInput> </AuthenticationValue>

  28. Checkout Message continued <UniqueUserID> <UniqueAgencyID> <Scheme>data</Scheme> <Value>data</Value> </UniqueAgencyID> <Value>data</Value> </UniqueUserID> <UniqueItemID> <UniqueAgencyID> <Scheme>data</Scheme> <Value>data</Value> </UniqueAgencyID> <Value>data</Value> </UniqueItemID>

  29. Checkout Message continued <UserElementId> <UserElementName>data</UserElementName> <UserLookUpType>data<UserLookUpType> </UserElementID> <ItemElementId> <UserElementName>data</UserElementName> <UserLookUpType>data<UserLookUpType> </ItemElementId>

  30. Checkout Message continued <FeeAmountAcknowledged> <CurrencyCode> <Scheme>data</Scheme> <Value>data</Value> </CurrencyCode> <CurrencyValue>data</CurrencyValue> </FeeAmountAcknowledged> </CheckOutItem> </NCIPMessages>

  31. Approach • GOAL -- Draft Standard for Trial Use • Allow for implementations prior to ballot • Identify early implementers • Implementers invited to August meeting • Develop tests • Message level testing • Application level testing • DSFTU - August 2000

  32. Structure of standard • Protocol: services, high-level objects, message state • Cross Application profile: specifies encoding via XML schema for • messages, data objects, transport • 3 Application-specific profiles: • Self-Service, Direct Consortial Borrowing, ILL to Circulation

  33. Challenges • Allowing for local practice • Within libraries and consortia • Allowing for international use • Moving target • Technology • Library practice • Allowing for new applications

  34. Questions? pat_stevens@oclc.org

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