NISO Circulation Interchange Protocol

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 1000
  pm
• E-book, charged for use online

6
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 standards test bed
• It must support these, may support others

10
Standards environment

• 3M Standard Interchange Protocol
• ISO 8459-41997 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 IDs

• Agency IDs
• 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
ltNCIPMessagesgt ltCheckOutItemgt
ltInitiationHeadergt ltFromSystemIDgtdatalt/FromSys
temIDgt ltFromSystemAuthenticationgtdatalt/
FromSystemAuthenticationgt ltFromAgencyIDgtdatalt/
FromAgencyIDgt ltFromAgencyAuthenticationgtdatalt/
FromAgencyAuthenticationgt ltToSystemIDgtdatalt/To
SystemIDgt ltToAgencyIDgtdatalt/ToAgencyIDgt
lt/InitiationHeadergt ltAuthenticationValuegt
ltOrdinalgtdatalt/Ordinalgt ltAuthenticationInputgt
datalt/AuthenticationInputgt lt/AuthenticationValue
gt
28
Checkout Message continued
ltUniqueUserIDgt ltUniqueAgencyIDgt
ltSchemegtdatalt/Schemegt ltValuegtdatalt/Valuegt
lt/UniqueAgencyIDgt ltValuegtdatalt/Valuegt lt/UniqueUs
erIDgt ltUniqueItemIDgt ltUniqueAgencyIDgt
ltSchemegtdatalt/Schemegt ltValuegtdatalt/Valuegt lt/U
niqueAgencyIDgt ltValuegtdatalt/Valuegt lt/UniqueItemI
Dgt
29
Checkout Message continued
ltUserElementIdgt ltUserElementNamegtdatalt/UserElem
entNamegt ltUserLookUpTypegtdataltUserLookUpTypegt lt
/UserElementIDgt ltItemElementIdgt
ltUserElementNamegtdatalt/UserElementNamegt
ltUserLookUpTypegtdataltUserLookUpTypegt lt/ItemElement
Idgt
30
Checkout Message continued
ltFeeAmountAcknowledgedgt ltCurrencyCodegt
ltSchemegtdatalt/Schemegt
ltValuegtdatalt/Valuegt lt/CurrencyCodegt
ltCurrencyValuegtdatalt/CurrencyValuegt
lt/FeeAmountAcknowledgedgt lt/CheckOutItemgt lt/NCIPM
essagesgt
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_at_oclc.org