This is the official development website for BS 8723: Structured Vocabularies for Information Retrieval. It was created specifically to support Part 5 of the standard, known as DD 8723-5, dealing with Exchange formats and protocols for interoperability.
T. Declerck, H. Krieger, H. Saggion, and M. Spies. ECAI, volume 178 of Frontiers in Artificial Intelligence and Applications, page 841-842. IOS Press, (2008)