However, activities are currently incorporated as categories into the thesaurus, but could be separated out in the future. Ethnographic terms were initially anglicised, but this proved a failure and vernacular terms are now incorporated into the object name thesaurus. In-house sources include the RAI Journal Index. The BM now have controlled terms for object names, materials, techniques, people's titles. The Museum of Mankind library and pictorial archive staff are currently working on the ethnic group terms.
Work is also underway on geographical place names.
Ethno collections done first and not updated for 5 years. Flat list used with multiple entries possible per object. Have a separate field for categories as opposed to simple names. All fields can have multiple entries. They use the Blackwood system, with multiple classification entries per object.