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The RDF/OWL Best Practices Task Group is part of Biodiversity Information Standards (TDWG; Its purpose is to adapt TDWG vocabularies for use as RDF classes and properties and to integrate those resources with other well-known vocabularies and ontologies outside TDWG for use in describing biodiversity resources.

Group discussions are conducted via an email list hosted and archived at . Please visit that site to request an invitation to be added to the list.

The issues tracker is set up to handle specific best-practices recommendations, missing terms, etc.

Our charter was approved by the TDWG executive at the 2011 meeting in New Orleans. At the meeting there was a discussion of the purpose of the group. There was also a survey to discuss the goals of the group.

We have also been tasked by the TDWG Executive Committee with examining the implications of adding new classes to the Darwin Core Type Vocabulary ( in the broader context of clarification of the relationships among classes in the biodiversity realm (see DwC issue 115, DwC issue 116, and DwC issue 117).

RDF Sandboxes/Development platforms

The sandboxes are places to experiment with RDF. Everyone is invited to load data, load ontologies, and issues sparql queries into any (or all) of the sandboxes linked to below. If you'd like to offer a sandbox for use, add the link here. (Note: by providing a sandbox, you implicitly agree to support it.)

Beginner's Guide to RDF

The Beginner's Guide is intended to serve as an introduction for persons who are not already familiar with RDF and OWL, and as a reference for those who would like organized access to reference material on those topics. The information is presented with minimal formal language and includes functional examples from the biodiversity informatics community.

Click here to go to the Introduction of the Guide

An RDF Primer video was produced for the 2013 Semantics of Biodiversity symposium and may be a helpful first introduction to RDF.

Semantics of Biodiversity Symposium at TDWG 2013

Several members of the task group were actively involved in organizing a Semantics of Biodiversity Symposium at the 2013 TDWG Annual Meeting in Florence, Italy. The slide sets from the talks given during the symposium are listed here.

Darwin Core RDF Guide approved

The Darwin Core RDF Guide was approved as an addition to the Darwin Core standard by the TDWG Executive on 2015-03-27. Until the Guide is live on the Darwin Core website, see the submission cover page for details.

The Vocabulary Management Task Group (VoMaG) has released its report

The VoMaG was a Task Group under the Technical Architecture Group (TAG) of the Biodiversity Information Standards (TDWG). Its purpose was to address the best practices for the collaborative development and maintenance of vocabularies for the description of biodiversity resources. Members of the RDF/OWL task group were contributors to the report. The final report can be downloaded at . The group website is at . The proposed Knowledge Organization System (KOS) for biodiversity information resources is at .

Mapping and linking life science data using RDF

The image on the page banner has the HTTP URI which can be dereferenced in a browser for human-readable metadata or by a semantic client for machine-readable metadata in the form of RDF