The document discusses the methods used for developing a multilingual Art & Architecture Thesaurus (AAT) between Taiwan and the Getty Research Institute (GRI). It covers the key issues in cross-lingual thesaurus development such as differences in scope, structure, language and culture between source and target languages. The methodology involves collaboratively translating AAT concepts and terms from English to Chinese, and integrating the multilingual thesaurus with digital collections to enable semantic, multilingual search and browsing.