This paper introduces the criteria and the procedures for mapping the Chinese Agricultural Thesaurus (CAT) to FAOs multilingual agricultural thesaurus AGROVOC. It proposes modifications to the inter-thesaurus mapping rules provided in the Simple Knowledge Organization System (SKOS) specification. It outlines in detail the criteria for the application of each of the mapping rules. We will describe the procedure for the application for these rules and give concrete examples taken from both thesauri.
Key words: Mapping, Thesaurus, CAT, AGROVOC, SKOS.