RDF.rb is a pure-Ruby library for working with Resource Description Framework (RDF) data.

Hyrax is a featureful Samvera front-end based on the latest and greatest Samvera software components.

JSON::LD parses and serializes JSON-LD into RDF and implements expansion, compaction and framing API interfaces for the Ruby RDF.rb library suite.

iQvoc - a SKOS(-XL) vocabulary management system built on the Semantic Web

Provides a set of uniform RESTful routes to query any controlled vocabulary or set of authority terms.

Spira is a framework for using the information in RDF.rb repositories as model objects.

A metadistribution of RDF.rb including a full set of parsing/serialization plugins.

RDF::RDFa is an RDFa reader/writer for Ruby using the RDF.rb library suite.

RDF::Turtle is an Turtle reader/writer for the RDF.rb library suite.

An ORM using the Data Mapper pattern, specifically built to solve Digital Repository use cases.

Linked Data Platform client library

RDF::N3 is an Notation-3 reader/writer and reasoner for the RDF.rb library suite.

RDF::RDFXML is an RDF/XML reader and writer for the RDF.rb library suite.

ActiveTriples provides tools for modeling RDF as discrete resources.

Portland Common Data Model (PCDM)

Reasons over RDFS/OWL vocabularies to generate statements which are entailed based on base RDFS/OWL rules along with vocabulary information. It can also be used to ask specific questions, such as if a given object is consistent with the vocabulary ruleset. This can be used to implement SPARQL Entailment Regimes.

RDF::Tabular processes tabular data with metadata creating RDF or JSON output.

The BEL gem allows the reading, writing, and processing of BEL (Biological Expression Language) with a natural DSL.

A Rails Engine that allows an application to CRUD CurationConcern objects (a.k.a. "Works")

Models used in the Duke Digital Repository