Functionality

Open source RDF framework with support for RDF Schema inferencing and querying

Architecture

Fully extensible and configurable with respect to:

• RDF stores & inferencers (Repository & Sail API)
• RDF parsers and writers (Rio API)
• RDF query result formats
• RDF query languages

Interfaces

• Rich, JDBC-like user API
• Streamlined system API's
• RESTful HTTP interface supporting the SPARQL Protocol for RDF
• Transparent remote access to servers from applications via HTTP Repository
• Independent web-based user interface that works with any Sesame server
• Context/named graph support

Query languages

• SPARQL and SeRQL query languages supported
• SPARQL/XML, SPARQL/JSON and binary RDF query result formats supported

Storage

Memory-based, native and RDBMS-backed RDF stores are available, a Mulgara back-end is under construction

I/O

RDF/XML, N-Triples, Turtle, N3, TriG and TriX RDF formats supported

Performance and scalability

Depends on choice of storage and inferencing; memory-based storage scales to O(10⁷) triples on desktop hardware with unrivaled performance, native and RDBMS stores scale to O(10⁸) triples on the same hardware. Scalability will be improved to O(10⁹) in 2008.

Character set support

Full Unicode support

Version

2.1 (April 2008)

Platform

Runs on Windows, Linux, Mac OS X and all other Java 5-enabled platforms

Support

Commercial support available from Aduna, community support available at www.openrdf.org

License

BSD-style open source license and Aduna Commercial License (ACL) available