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UKAT - UK Archival Thesaurus
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104 terms

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  • OPAC   
    Use  Catalogues
  • Open area schools   
    Use  Open plan schools
  • Open government   
    Use  Government policy and/or Right to information
  • Open learning systems   
    Use  Distance education
  • Open meadows   
    Use  Open fields
  • Opera programs   
    Use  Opera programmes
  • Operas   
    Use  Opera
  • Operating systems   
    Use  Basic software
  • Operation Dragoon, 1943-1944   
    Use  Operation Dragoon (1944)
  • Operation Dynamo, 1940   
    Use  Operation Dynamo (1940)
  • Operation Sea Lion, 1939-1942   
    Use  Operation Sealion (1940)
  • Operation Shingle, 1943-1944   
    Use  Operation Shingle (1944)
  • Operation Smith, 1939-1942   
    Use  Operation Smith (1939-1942)
  • Operative otolaryngology   
    Use  Otolaryngology
  • Operative surgery   
    Use  Surgery
  • Opthalmology   
    Use  Ophthalmology
  • Optical character recognition   
    Use  Character recognition
  • Optional courses   
    Use  Elective courses
  • Orangeries   
    Use  Glasshouses
  • Orchestra   
    Use  Orchestras
  • Orchestral works   
    Use  Orchestral music
  • Orders of knighthood and chivalry   
    Use  Orders
  • Ordnance   
    Use  Military equipment
  • Ore deposits   
    Use  Mineral deposits
  • Organ (musical instrument)   
    Use  Organs (musical instrument)
About UKAT

UKAT is a subject thesaurus and controlled vocabulary that UK archives can use when indexing their collections and catalogues. Our key aims are:

  • To improve access to archives by subject
  • To ensure that archives' users see relevant and consistent subject searches
  • To promote involvement in archives by under-represented archive user groups by providing subject terms which reflect their histories and experiences.

UKAT was created between June 2003 and August 2004 from subject terms contributed by individual archives, projects and users, as part of a project funded by the Heritage Lottery Fund (HLF), with additional funding, management and support from the The National Archives and University of London Computer Centre (ULCC).

The initial creation of UKAT was overseen by an advisory panel of archivists together with a group including representatives of family history societies and archive users organisations. Since 2004, AIM25 (Archives in London and the M25) has steadily added to the subject thesaurus with the addition of new terms and vocabularies, chosen and validated by archive professionals. Ongoing curation and maintenance of the thesaurus is now carried out on a voluntary basis by the AIM25 team and by IMAGIZ.

UKAT is supported by the AIM25 charity 


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