Editing Web annotation (section)

=== Related specifications ===

Web Annotation can be used in conjunction with (or as an alternative to) [[fragment identifier]]s that describe how to address elements within a web document by means of [[Uniform Resource Identifier|URI]]s. These include

* RFC 5147 (URI fragment identifiers for the text/plain media type)<ref>{{Cite journal|url=https://tools.ietf.org/html/rfc5147|title = Rfc5147| year=2008 | doi=10.17487/RFC5147 | last1=Wilde | first1=E. | last2=Duerst | first2=M. | url-access=subscription }}</ref>
* RFC 7111 (URI fragment identifiers for the text/csv media type)<ref>{{Cite journal|url=https://tools.ietf.org/html/rfc7111|title = Rfc7111|date = January 2014|last1 = Hausenblas|first1 = Michael|last2 = Wilde|first2 = Erik|last3 = Tennison|first3 = Jeni| doi=10.17487/RFC7111 |url-access = subscription}}</ref>
* RFC 8118 (URI fragment identifiers for the application/pdf media type)<ref>{{Cite journal|url=https://tools.ietf.org/html/rfc8118#page-3|title=The application/PDF Media Type|date=March 2017|last1=Hardy|first1=Matthew|last2=Masinter|first2=Larry M.|last3=Markovic|first3=Dejan|last4=Johnson|first4=Duff|last5=Bailey|first5=Martin|doi=10.17487/RFC8118 |url-access=subscription}}</ref>
* [[Scalable Vector Graphics|SVG]] fragment identifiers<ref>{{cite web|url=https://www.w3.org/TR/SVG11/linking.html#SVGFragmentIdentifiers|title=Linking – SVG 1.1 (Second Edition)}}</ref>
* [[XPointer]] (for addressing components of XML documents)<ref>{{cite web|url=https://www.w3.org/TR/xptr-framework/|title = XPointer Framework}}</ref>
* Media Fragments (for addressing components of media files)<ref>{{cite web|url=https://www.w3.org/TR/media-frags/|title = Media Fragments URI 1.0 (Basic)}}</ref>

Other, non-standardized fragment identifiers are in use, as well, e.g., within the NLP Interchange Format.<ref>{{cite web|url=http://bpmlod.github.io/report/nif-corpus/index.html|title = Guidelines for Linked Data corpus creation using NIF}}</ref>

Independently from Web Annotation, more specialized data models for representing annotations on the web have been developed, e.g., the NLP Interchange Format (NIF)<ref>{{cite web|url=https://site.nlp2rdf.org/ |title=Nlp2rdf.org |publisher=Site.nlp2rdf.org |date= |accessdate=2022-08-07}}</ref> for applications in language technology. In early 2020, the [[W3C]] Community Group "Linked Data for Language Technology" launched an initiative to harmonize these vocabularies and to develop a consolidated RDF vocabulary for linguistic annotations on the web.<ref>{{cite web|url=https://github.com/ld4lt/linguistic-annotation|title = Ld4lt/Linguistic-annotation|website = [[GitHub]]|date = 31 May 2021}}</ref>