sanderson overview of the w3c web annotation specifications

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OverviewoftheW3CWebAnnotation

SpecificationsRobertSandersonSemanticArchitectJ.PaulGettyTrust

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BriefHistoryofAnnotationatW3C

• 2001Annotea• 2009OpenAnnotationCollaboration&

AnnotationOntology• 2011OpenAnnotationCommunityGroup• 2014WebAnnotationWorkingGroup• 2017TechnicalRecommendations

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WebAnnotationMission

Interoperability betweenAnnotationsystems& platformsby…followingtheArchitectureoftheWeb…reusingexistingwebstandards…providingasingle,coherentmodeltoimplement…whichisorthogonaltothedomainofinterest…withoutrequiringadoptionofspecifictechnologies…whilemaintaininglowimplementationcosts

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Annotation?

Asetofconnectedresources,typicallyincludingabodyandtarget,wherethebodyisrelatedtothetarget.

Usersannotateinorderto…Provideanaide-memoire bookmarking…Shareandinform commenting…Improvediscovery tagging…Organizeresources identifying…Interactwithothers replying

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Recommendations

Modelhttp://www.w3.org/TR/annotation-model/

LinkedDataVocabularyhttp://www.w3.org/TR/annotation-vocab/

Protocolhttp://www.w3.org/TR/annotation-protocol/

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AnnotationEcosystem

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AnnotationEcosystem

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AnnotationEcosystem

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AnnotationEcosystem

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AnnotationEcosystem

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AnnotationEcosystem

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AnnotationEcosystem

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AnnotationEcosystem

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AnnotationEcosystem

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AnnotationEcosystem

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DataModel

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DataModel

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DataModel

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DataModel

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DataModel

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SpecificResourceDataModel

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SpecificResourceDataModel

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Adoption?

Tworelevantcasestudiesforthisaudience:• IIIF• DigitalPublishing

Had10implementationsbeforethespecificationswerefinalized,includingHypothes.is

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http://iiif.io/

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Userswanttocompareobjects…

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Iwanttocompareobjects

acrossorganizationalboundaries

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andannotate them.

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APIs:AgreementPrecedingInteraction*

Presentation

Search

Image

Authentication

(*APIisreally:ApplicationProgrammingInterface)

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PresentationAPI

Provideonlytheinformationnecessaryforanapplicationtopresenttheobjecttotheuser

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PresentationAPI

http://iiif.io/api/presentation/2.1/

Structure

Properties• Descriptive• Rights• Technical• Linking

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PresentationAPI:Annotations

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DigitalPublishingatW3C

ItisthegoalofthePublishingWorkingGrouptoprovide[…]thenecessarytechnologiesontheOpenWebPlatformtomakethecombinationoftraditionalpublishingandtheWebcomplete

[…].Allpublications– withtheirspecificitiesandtraditions– shouldbecomefirstclassentitieson

theWeb

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DigitalPublishingDeliverables

• PackagedWebPublications(PWP)• AWebPublicationasasinglefile,usingapackagingformat

• EPUB4• FunctionalprofileofPWPwithfocusonaccessibilityandreliability

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DigitalPublishingatW3C

• EPUBalreadyadoptedOpenAnnotation• Seehttp://www.idpf.org/epub/oa/

• PWPadoptingWebAnnotation,includingforEPUB4profile

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ThankYou!

RobSandersonrsanderson@getty.edu /@azaroth42