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Thesauri (Getty Vocabularies (There are four separate Getty Vocabularies,…

- - - - Alternative to the 'preferred term' are usually prefixed with UF (use for)
- - - - The most minimally managed of the word based systems, an alphabetically arranged list of words
      - Lack of control in the terms brings benefits of flexibility and adaptability
      - List of items arranged alphabetically means that there is no ability to deal with synonyms and relationships developed, users simply need to work through the list
    - - Appears as a list of keywords, but has cross-referencing for similar subjects
      - Use terms UF (use for reference), BT (broader terms), NT (narrower terms) and RT (related terms)
      - Not built logically, but on a needs basis
    - - Totally systematic and logical, and designed to be so from the start - unlike subject headings
      - Uses both a systematic section and an alphabetical section to organise terms and relationships
      - Systematic section can help to organise subject areas of different types
- - - - This shows as many hierarchies as needs be, with 'Serbia' appearing in 'Eastern Europe' and 'Mediterranean Europe'
      - Groups and hierarchies operate independently of one another