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. They are working on a hierarchical materials list and a flat list for processes. Entries are usually made to catalogue level.
All fields have on-line controlled terminology.
Early work on materials and processes has stopped, and we will look to outside sources immediately rather then develop these further. Francis Cook at Kew is working on ethno-botanical genera and family names, and economic botany. As part of the Delta project, eight Dutch museums are attempting to construct a Dutch thesaurus, adopting the structure of existing standards, eg. They are beginning with a pilot project on African collections. The project co-ordinator is Jos Taekema from the National Museum of Ethnology in Leiden.