Global *S*emantic *C*ategory, *O*ntology, *T*ag and *T*axonomy S*y*stem, adding OWL based services as well as simple categories, tags and tagclouds. Relations are made using real SQL relations, that can be exported later on to OWL and other standards. This will enable exchange of semantic information between different systems.
D. Sonntag, P. Wennerberg, P. Buitelaar, и S. Zillner. Cases on Semantic Interoperability for Information Systems Integration: Practices and Applications, глава 8, IGI Global, Hershey, PA, (2009)