The Semanticscience Integrated Ontology (SIO) provides a simple, integrated ontology of types and relations for rich description of objects, processes and their attributes. The SIO paper is available.

The OWL2 ontology is available at http://semanticscience.org/ontology/sio.owl

view at

• sio@bioportal
• sio@ontobee
• sio@aberowl

This project provides ontological support for

• Bio2RDF Linked Data for the Life Sciences
• SADI Semantic Web Services.
• DisGeNET's gene-disease associations
• The NCBI's PubChem RDF for measurement values
• The EBI's Gene Expression Atlas .

If you have questions please send to SIO mailing list (sio-ontology@googlegroups.com; http://groups.google.com/group/sio-ontology). If you have term requests, just use the issue tracker.

Design patterns help in defining a structure for common data types. These are currently at the old google code site

Subsets/Slims. Subsets of SIO have been prepared for modular import.

• labels as SIO URIs
• other subsets including core, chemical, nlm, etc