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Oren Beit-Arie Ex Libris (USA) Inc. NISO Standards Committee AX June 28, 2001 OpenURL Current draft proposal.

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Presentation on theme: "Oren Beit-Arie Ex Libris (USA) Inc. NISO Standards Committee AX June 28, 2001 OpenURL Current draft proposal."— Presentation transcript:

1 Oren Beit-Arie Ex Libris (USA) Inc. NISO Standards Committee AX June 28, 2001 OpenURL Current draft proposal

2 Oren Beit-Arie OpenURL Framework Conventional Linking: - User interacts with an Information Service and retrieves references - Typically, the IS attempts to deliver reference links (default links) - In many cases, those links are not-so- adequate (e.g. non context sensitive)

3 Oren Beit-Arie OpenURL Framework OpenURL Framework addresses this problem: Provides an architecture that enables provision of additional, appropriate links by third parties

4 Oren Beit-Arie OpenURL Framework OpenURL Framework key concepts: 1.Collaboration of Information Providers: by providing a hook to references - this will enable the delivery of metadata and identifiers of the referenced work to a third party service component - the hook is an HTTP request. OpenURL

5 Oren Beit-Arie OpenURL Framework OpenURL Framework key concepts: 2. Existence of 3 rd party Service Components - are the targets of the hooks - provide appropriate, context sensitive resolution of the metadata and/or identifiers of the referenced work, into service-links

6 Oren Beit-Arie OpenURL Framework OpenURL Framework key concepts: 3. Existence of a specification that describes the format of the hook - this is the OpenURL draft specification - the task of this committee to standardize

7 Oren Beit-Arie “NOU” linking Link Source Link Destination Link. Resource Resolution of Links Provision of Links * NOU – non OpenURL

8 Oren Beit-Arie OpenURL linking Link Source OpenURL. Resource Service Component Resolver/Link Server Provision of HooksResolution into Links Context Sensitive Link Destination Link Link Destination Link Link Destination Link Link Destination Link Hook Appropriate

9 Oren Beit-Arie OpenURL Framework Architecture for Open Linking, because: It’s about untying the provision of the reference (the responsibility of the Information Service that originates the OpenURL) from the provision of Link Services to that reference (the responsibility of the Service Component which is the target of the OpenURL)

10 Oren Beit-Arie OpenURL Framework Service Component:  Accept OpenURLs as input  Provide context-sensitive/ localized/alternative resolution of links, based on Metadata and Identifiers of the Referent It’s all about Metadata

11 Oren Beit-Arie OpenURL Framework Link Source OpenURL. Resource Resolver/Link Server Fetch MD Repository Parsing the OpenURL for Metadata Using Identifiers (keys) to FETCH MD Identifier/s

12 Oren Beit-Arie OpenURL Metadata is transported:  Explicitly – by Value – on the URL  Implicitly – by Reference – using identifiers/keys that enable FETCH of metadata

13 Oren Beit-Arie OpenURL - Goals Scholarly Information Low-barrier; easy to implement Syntax for making Metadata and Identifiers about the Referent available to Service Components

14 Oren Beit-Arie OpenURL – Current Specs BASE-URLAddress of the Service component QueryDescription of the Referent/s (metadata and/or identifiers supporting the delivery of link services) OpenURL ::= BASE-URL ‘?’ QUERY Appropriate Service Component (localized, context-sensitive resolution)

15 Oren Beit-Arie OpenURL – Current Specs Follows URI-specs name=value pairs allows for multiple Referents HTTP GET (and POST) UTF-8 encoding

16 Oren Beit-Arie OpenURL – Current Specs QUERY ::= DESCRIPTION (‘&&’ DESCRIPTION) DESCRIPTION :== ORIGIN-DESCRIPTION ‘&’ OBJECT-DESCRIPTION

17 Oren Beit-Arie OpenURL – Current Specs DESCRIPTION :== ORIGIN-DESCRIPTION ‘&’ OBJECT-DESCRIPTION ORIGIN-DESCRIPTION: Description of the Resource from which the OpenURL originates sid=VendorID:DatabaseID sid=IOPP:jnl_ref sid=EBSCO:eric sid=SWETS:snn

18 Oren Beit-Arie OpenURL – Current Specs DESCRIPTION :== ORIGIN-DESCRIPTION ‘&’ OBJECT-DESCRIPTION OBJECT-DESCRIPTION: Description of the Referent (by means of metadata and/or identifiers) Contains 3 zones: GLOBAL-IDENTIFIER-ZONE OBJECT-METADATA-ZONE LOCAL-IDENTIFIER-ZONE

19 Oren Beit-Arie OpenURL – Current Specs GLOBAL-IDENTIFIER-ZONE: Contains reference to a global namespace and an identifier of the Referent that is unique within the that namespace. ‘id’ ‘=’ GLOBAL-NAMESPACE ‘:’ GLOBAL-IDENTIFIER (+) id=doi:10.1000/6789-1 id=pmid:98765430 id=oai:arXiv:physics/0003456 Can be used to FETCH additional metadata for the Referent

20 Oren Beit-Arie OpenURL – Current Specs OBJECT-METADATA-ZONE: (Explicit/by-value) metadata for the Referent, in specified metadata schemes (7 possible genre values). META-TAG ‘=‘ META-VALUE (Name-Value pairs) genre=article&issn=1234-5678& volume=12&issue=13&spage=121 genre=article&atitle=my paper&title=Journal of Good News&sici=1234- 5678(199802)12:14 2.0.TX;2-B

21 Oren Beit-Arie OpenURL – Current Specs LOCAL-IDENTIFIER-ZONE: information in non-standardized syntax, defined by the Resource  low-barrier imp.; local identifiers; other ‘pid’ ‘=’ VCHAR+ pid= Solin+M;+Campi+P 21010488 20020201 pid=1234567

22 Oren Beit-Arie OpenURL – Examples 1. Institute of Physics Publishing: http://demo.exlibrisgroup.com:8888/demo?sid=IOPP:jnl_ref& genre=article&aulast=Kottos&auinit=T&issn=0031%2d9007& stitle=Phys%2e+Rev%2e+Lett%2e&volume=79&issue=24& spage=4794&date=1997 BASE-URL ORIGIN-DESCRIPTION OBJECT-METADATA-ZONE

23 Oren Beit-Arie OpenURL – Examples 2. Ebsco: http://demo.exlibrisgroup.com:8888/demo?genre=article& issn=08966273&volume=28&issue=2&date=20020201&spage=309 &sid=EBSCO:cmedm&title=Neuron&atitle=Synaptic%20autoimmunity %20and%20the%20Salk%20factor.&pid= Solimena+M;+ De+Camilli+P 21010488 20020201 cmedm

24 Oren Beit-Arie OpenURL – Examples 3. SilverPlatter ERL: http://demo.exlibrisgroup.com:8888/demo? sid=ERL:mdl&pid=345003456

25 Oren Beit-Arie OpenURL - Acceptance Fast Keeps growing Wide range of information resources: A&I databases OPACs E-journals E-print archives (OAi) Other local data repositories

26 Oren Beit-Arie OpenURL - Acceptance Bell & Howell Information and Learning ProQuest EBSCO Publishing EBSCOhost The Gale Group Institute of Physics Publishing Axiom Electronic Journals ISI Web of Science Swets Blackwell SwetsNetNavigator SilverPlatter ERL SLAC-SPIRES (Stanford) ArXiv.org Ovid OCLC FirstSearch Cambridge Scientific Abstracts http://www.sfxit.com/sources.html

27 Oren Beit-Arie OpenURL Deployment: Lessons learned: Extensive usage of the pid (LOCAL- IDENTIFIER-ZONE): To overcome limitations in the OpenURL “ metadata schema ” To provide local identifiers; FETCH information For User information … Missing contextual elements (.. Later..) Compliancy levels (??) Keep it a low-barrier

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