RDFSharp has a modular API made up of four layers (RDF/SPARQL/SHACL docs, OWL/SKOS docs):

• RDFSharp.Model
• Create and manage RDF models (resources, literals, triples, graphs, namespaces, ...)
• Exchange them using standard RDF formats (N-Triples, TriX, Turtle, RDF/Xml)
• Create and validate SHACL shapes (shape graphs, shapes, targets, constraints, reports, ...)

• RDFSharp.Store
• Create and manage RDF stores for context-aware modeling of RDF data (quadruples)
• Exchange them using standard RDF formats (N-Quads, TriX)

• RDFSharp.Query
• Create and manage RDF federations giving integrated query access to multiple data sources
• Create and execute SPARQL queries on graphs, stores, federations and SPARQL endpoints

• RDFSharp.Semantics
• Create and manage OWL-DL ontologies (classes, restrictions, properties, facts, assertions, annotations, ...)
• Validate ontology T-BOX and A-BOX against a standard set of RDFS/OWL-DL constraint rules
• Create OWL-DL reasoners exploiting an extensible set of RDFS/OWL-DL inference rules
• Create and manage SKOS concept schemes (concepts, collections, relations, annotations, labels, ...)