User:Realworldobject/sandbox

BiblioGraph.net (BGN) is a July 2014 extension to Schema.org that was designed for richer descriptions of bibliographic resources^[1]. This "external" extension was effectively replaced by the "hosted" extension bib.schema.org^[2] in May 2015, although the efforts haven't been fully reconciled.

Although libraries were early adopters of RDF and linked data^[3][4][5], they tended to be idiomatic namespace mashups that focused on identifier and terminology reuse rather than coordinated data reuse. In comparison, the growing popularity of Schema.org (announced June 2, 2011) demonstrated the potential of a cross-domain namespace, intuitive terminology, simplified HTML embeddings (Microdata or RDFa) and expectations of search engine optimization. Schema.org's coverage of library-related concepts was thin, however, and the original "Slash-based" extension mechanism^[6] lacked documentation and examples.

In response, the W3C Schema Bib Extend Community Group^[7] was formed on September 25, 2012 to "discuss and prepare proposal(s) for extending Schema.org schemas for the improved representation of bibliographic information markup and sharing."^[8] The group met regularly between December 2012 and February 2014^[9] to document use cases, define scope, and propose extension terms.^[10]

Although other communities also proposed additions to Schema.org, the process remained restrictive compared to industrial needs.^[11] As an early extension alternative, Schema.org made their underlying web application available as open source allowing Schema.org to be treated as the core, but with greater control over the extensions. By using this software platform, the complete set of Schema Bib Extend proposals^[12] were published on July 17, 2014 as BiblioGraph.net^[13].

Although the shared software platform allowed communities to managed extension with more agility and independence, pressure remained on Schema.org to deal with extensions in a more centralized way. In May 2015, they announced a new "hosted" extension mechanism replacing the "slash-based" mechanism^[14]. One of those new hosted extensions was bib.schema.org^[15] which effectively subsumed the role of the "external" BiblioGraph.net. The two efforts were never fully reconciled, although the W3C Schema Bib Extend Community Group subsequently transitioned to the bib.schema.org solution and development on BiblioGraph.net stopped.

The set of BiblioGraph.net terms fall into three categories. Terms that map to the hosted bib.schema.org extension are highlighted.

Although the "hosted" bib.schema.org extension overtook the role played by the "external" BiblioGraph.net extension, many gaps between them remain. A less restrictive mechanism can be found, though, using Wikidata and the Wikidata Query Service^[16].

• Homepage URL: https://Bibliograph.net